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Journal articles on the topic 'Oxygen plane'

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Published: 4 June 2021
Last updated: 10 February 2022

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1

Cross, J. A., and G. N. Haddad. "Negative point-plane corona in oxygen." Journal of Physics D: Applied Physics 19, no. 6 (June 14, 1986): 1007–17. http://dx.doi.org/10.1088/0022-3727/19/6/015.

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2

Scott, D. A., and G. N. Haddad. "Negative point-to-plane corona pulses in oxygen." Journal of Physics D: Applied Physics 19, no. 8 (August 14, 1986): 1507–17. http://dx.doi.org/10.1088/0022-3727/19/8/018.

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3

Song, Y., and R. Gomer. "Diffusion of oxygen on the Mo(110) plane." Surface Science Letters 290, no. 1-2 (June 1993): A527. http://dx.doi.org/10.1016/0167-2584(93)90907-z.

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4

Song, Y., and R. Gomer. "Diffusion of oxygen on the Re(201) plane." Surface Science 346, no. 1-3 (February 1996): 243–52. http://dx.doi.org/10.1016/0039-6028(95)00944-2.

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5

Song, Y., and R. Gomer. "Diffusion of oxygen on the Mo(110) plane." Surface Science 290, no. 1-2 (June 1993): 1–14. http://dx.doi.org/10.1016/0039-6028(93)90583-6.

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6

Logvenov, G., A. Gozar, and I. Bozovic. "High-Temperature Superconductivity in a Single Copper-Oxygen Plane." Science 326, no. 5953 (October 29, 2009): 699–702. http://dx.doi.org/10.1126/science.1178863.

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7

Feng, Y., D. C. Larbalestier, G. F. Sun, Y. Xin, K. W. Wong, M. S. Osofsky, L. E. Tom, et al. "Crystal structure of Tl-substituted HG-1223 superconductor with critical temperature of 138K under atmospheric pressure." Proceedings, annual meeting, Electron Microscopy Society of America 53 (August 13, 1995): 370–71. http://dx.doi.org/10.1017/s0424820100138221.

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Since the discovery of the Hg-Ba-Ca-Cu-O superconductors, several members of the system bearing the formula HgBa2Can−1CunO2n+2+x (n=l,2,3) were synthesized. The highest critical temperature Tc of 133.5K under atmospheric pressure was achieved from the Hg-1223 compound (n=3). The Hg-compounds are structurally analogous to the single-layer Tl-based compounds TlBa2Can−1CunO2n+2+x. In Hg-1223, oxygen is almost absent in the Hg-O plane at the stoichiometric (x=0) composition. In contrast, the oxygen sites in the Tl-O plane are nearly fully occupied. The difference in oxygen occupancy of the corresponding rock-salt Hg-O and Tl-O planes in Hg- 1223 and Tl-2223 is due to the difference in valence of Hg2+ and Tl3+.To create a necessary fractional oxygen occupation in the Hg-O planes, a partial substitution of Tl for Hg was carried out and the Tc of the Tl-substituted sample raised up to 138K. We report here on the crystal structure of the new compound. Synthesis and properties has been published elsewhere.
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8

Benseman, T. M., J. R. Cooper, and G. Balakrishnan. "In-plane oxygen diffusion in single crystals of Bi2Sr2CaCu2O8+δ." Physica C: Superconductivity and its Applications 468, no. 1 (January 2008): 81–87. http://dx.doi.org/10.1016/j.physc.2007.10.018.

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9

Nesher, O., and G. Koren. "Directional in-plane tunneling in oxygen-deficientYBa2Cu3O6.6/YBa2Cu2.55Fe0.45Oy/YBa2Cu3O6.6edge junctions." Physical Review B 60, no. 21 (December 1, 1999): 14893–96. http://dx.doi.org/10.1103/physrevb.60.14893.

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10

Sydow, J. P., R. A. Buhrman, and B. H. Moeckly. "Basal plane oxygen vapor pressure of Co-doped YBa2Cu3O7−δ." Applied Physics Letters 72, no. 26 (June 29, 1998): 3512–14. http://dx.doi.org/10.1063/1.121644.

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11

Dendy, Anna, Ben R. Abadie, April Pittman, Matthew McRae, Joseph A. Chromiak, and John Lamberth. "EFFECT OF ELBOW PLANE DURING ARM ERGOMETRY ON OXYGEN CONSUMPTION." Medicine & Science in Sports & Exercise 35, Supplement 1 (May 2003): S183. http://dx.doi.org/10.1097/00005768-200305001-01018.

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12

Zhou, Xingjiang, M. Cardona, D. Colson, and V. Viallet. "Plane oxygen vibrations and their temperature dependence inHgBa2Ca2Cu3O8+δsingle crystals." Physical Review B 55, no. 18 (May 1, 1997): 12770–75. http://dx.doi.org/10.1103/physrevb.55.12770.

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13

Gong, Yun-Ming, and Hai-Shan Zeng. "Adsorption and desorption of oxygen on the W(100) plane." Surface Science Letters 246, no. 1-3 (April 1990): A168. http://dx.doi.org/10.1016/0167-2584(90)90027-5.

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14

Yun-Ming Gong and Hai-Shan Zeng. "Adsorption and desorption of oxygen on the W(100) plane." Surface Science 246, no. 1-3 (April 1991): 169–72. http://dx.doi.org/10.1016/0039-6028(91)90409-l.

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15

FASTAMPA, R., M. GIURA, S. SARTI, R. MARCON, and E. SILVA. "IN-PLANE AND OUT OF PLANE RESISTIVITIES IN BSCCO (2212) SINGLE CRYSTALS AT DIFFERENT DOPING LEVEL." International Journal of Modern Physics B 17, no. 04n06 (March 10, 2003): 867–72. http://dx.doi.org/10.1142/s0217979203016741.

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Using an eight terminal geometry in standard current/voltage contact configurations we have determined both the out-of-plane and the in-plane d.c. resistivity in BSCCO(2212) samples at different doping level. Comparison of the temperature behaviors for these transport quantities highlights that use of these configurations results in incorrect determinations for the in-plane components. Exploiting the possibility of crossed comparisons when using a multi-terminal technique we are able to ascribe this effect at presence on the sample of surface layer with oxygen contents different from the bulk.
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16

Aharony, Amnon, R. J. Birgeneau, and M. A. Kastner. "MAGNETISM AND SUPERCONDUCTIVITY IN DOPED PLANAR CuO2 SYSTEMS." International Journal of Modern Physics B 02, no. 05 (October 1988): 649–57. http://dx.doi.org/10.1142/s0217979288000470.

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We present a model for the magnetic phases and superconductivity in doped planar CuO 2 systems. Electronic holes on the oxygens introduce local ferromagnetic exchange coupling between the Cu spins. The resulting frustration destroys the antiferromagnetic state characterizing the undoped planes, and generates a new spin glass phase. This frustration also yields an attractive interaction between the holes, whose range decreases with increasing doping. Arguing that transport is via the non-bonding in-plane oxygen orbitals, we use the BCS approximation to obtain an excellent estimate of the superconducting transition temperature T c (x) , for La 2−x Sr x CuO 4.
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17

Almasan, C. C., G. A. Levin, E. Cimpoiasu, T. Stein, D. A. Gajewski, M. B. Maple, Hong Zheng, A. P. Paulikas, and B. W. Veal. "Out-of-Plane and in-Plane Conduction in Insulating and Strongly Underdoped Cuprates." International Journal of Modern Physics B 12, no. 29n31 (December 20, 1998): 3203–6. http://dx.doi.org/10.1142/s0217979298002325.

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We report measurements of out-of-plane (ρ c ) and in-plane (ρab) normal-state resistivities of single crystals of insulating PrBa2Cu3O 7-δ and strongly underdoped oxygen deficient YBa2Cu3O 6.41 using a flux transformer method. In the superconducting specimens, the onset of superconductivity was suppressed by a magnetic field of 9 T. We have found that the anisotropy ρc/ρab of these samples increases monotonically at low temperatures with no signs of saturation. The temperature dependence of ρc/ρab for YBa2Cu3O6.41 is well described by ρc/ρab=a +bT-2/3, but over a smaller temperature range than for insulating PrBa2Cu3O 7-δ. Both the absence of saturation of ρc/ρab and its T-2/3 dependence indicate two-dimensional conduction. This means that the average in-plane hopping distance of the localized charge carriers increases with decreasing T according to Mott's [Formula: see text] law, while the elementary step in the c-direction remains T independent, equal to the spacing between the bilayers.
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18

Zhao, Y., H. Zhang, X. Du, Y. Y. He, Q. R. Feng, and S. Q. Feng. "Dynamic study of oxygen in CuO plane in Bi-system superconductors." Physica C: Superconductivity 282-287 (August 1997): 859–60. http://dx.doi.org/10.1016/s0921-4534(97)00513-3.

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19

Grønborg, Signe S., Kristbjörg Thorarinsdottir, Line Kyhl, Jonathan Rodriguez-Fernández, Charlotte E. Sanders, Marco Bianchi, Philip Hofmann, Jill A. Miwa, Søren Ulstrup, and Jeppe V. Lauritsen. "Basal plane oxygen exchange of epitaxial MoS 2 without edge oxidation." 2D Materials 6, no. 4 (July 12, 2019): 045013. http://dx.doi.org/10.1088/2053-1583/ab2d00.

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20

Heikman, Sten, Stacia Keller, Steven P. DenBaars, and Umesh K. Mishra. "Oxygen doping of c-plane GaN by metalorganic chemical vapor deposition." physica status solidi (c), no. 7 (December 2003): 2557–61. http://dx.doi.org/10.1002/pssc.200303500.

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21

Burdett, Jeremy K. "Oxygen ordering and plane-to-chain electron transfer in YBa2Cu3O7−δ." Physica C: Superconductivity 191, no. 1-2 (February 1992): 282–91. http://dx.doi.org/10.1016/0921-4534(92)90660-5.

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22

Zhang, Yuxia, Fei Ding, Chen Deng, Shuyu Zhen, Xinyuan Li, Yifei Xue, Yi-Ming Yan, and Kening Sun. "Crystal plane-dependent electrocatalytic activity of Co3O4 toward oxygen evolution reaction." Catalysis Communications 67 (July 2015): 78–82. http://dx.doi.org/10.1016/j.catcom.2015.04.012.

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23

COLONNA, S., F. ARCIPRETE, A. BALZAROTTI, G. BALESTRINO, P. G. MEDAGLIA, and G. PETROCELLI. "XAS STUDY OF (BaCuO2)2/(CaCuO2)n SUPERLATTICES." International Journal of Modern Physics B 14, no. 25n27 (October 30, 2000): 2628–33. http://dx.doi.org/10.1142/s0217979200002521.

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EXAFS (Extended X-ray Absorption Fine Structure) and XANES (X-Ray Absorption Near Edge Structure) spectroscopies have been used to probe the local bonding of the artificially layered superconducting (BaCuO2)2/(CaCuO2)n (n = 2, 3, 4) superlattices. Fluorescence-yield measurements have been performed above the Cu and Ba K-edges. This study shows that the charge reservoir (CR) block of the Ba/Ca superlattice contains oxygen vacancies randomly distributed in the CuO2 planes and that the two apical oxygen atoms are displaced out of the Ba plane giving rise to buckled BaO planes. These oxygen atoms have a distorted pyramidal and octahedral coordination around Cu at Ba/Ca interface and in the (BaCuO2) block, respectively.
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24

Stockinger, Ch, W. Markowitsch, W. Lang, R. Rössler, J. D. Pedarnig, and D. Bäuerle. "In-plane and out-of-plane conductivity enhancement in oxygen-depleted YBa2Cu3Ox thin films during long-term photoexcitation." Physica C: Superconductivity 317-318 (May 1999): 614–17. http://dx.doi.org/10.1016/s0921-4534(99)00154-9.

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25

Choi, Eun-Mi, Angelo Di Bernardo, Bonan Zhu, Ping Lu, Hen Alpern, Kelvin H. L. Zhang, Tamar Shapira, et al. "3D strain-induced superconductivity in La2CuO4+δ using a simple vertically aligned nanocomposite approach." Science Advances 5, no. 4 (April 2019): eaav5532. http://dx.doi.org/10.1126/sciadv.aav5532.

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A long-term goal for superconductors is to increase the superconducting transition temperature, TC. In cuprates, TC depends strongly on the out-of-plane Cu-apical oxygen distance and the in-plane Cu-O distance, but there has been little attention paid to tuning them independently. Here, in simply grown, self-assembled, vertically aligned nanocomposite thin films of La2CuO4+δ + LaCuO3, by strongly increasing out-of-plane distances without reducing in-plane distances (three-dimensional strain engineering), we achieve superconductivity up to 50 K in the vertical interface regions, spaced ~50 nm apart. No additional process to supply excess oxygen, e.g., by ozone or high-pressure oxygen annealing, was required, as is normally the case for plain La2CuO4+δ films. Our proof-of-concept work represents an entirely new approach to increasing TC in cuprates or other superconductors.
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26

Zhao, Jun, Shu Zhong Wang, Zhi Qiang Wu, Lin Chen, and Hai Yu Meng. "Thermogravimetric Analysis of Plastic and Biomass under Different Oxygen Concentration." Advanced Materials Research 864-867 (December 2013): 1985–88. http://dx.doi.org/10.4028/www.scientific.net/amr.864-867.1985.

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This paper simulates the plastic and biomass pyrolysis and ignition characteristics in different atmosphere, by thermogravimetric analysis polypropylene and plane wood at different oxygen concentrations. Experiments show that, increase the concentration of oxygen can accelerate the pyrolysis reaction rate of biomass and plastics, and can also reduce the ignition temperature of them. But for high volatile substances, such as plastic, the increase of oxygen concentration make a smaller effect on the pyrolysis and ignition, and for relatively high fixed carbon content substances, such as plane woods, the increase of oxygen concentration make a larger effect on pyrolysis and ignition.
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27

Sachkov, V. A. "Effect of defects such as vacancy with oxygen and adsorbed oxygen on electronic structure of graphene plane." Omsk Scientific Bulletin, no. 172 (2020): 98–101. http://dx.doi.org/10.25206/1813-8225-2020-172-98-101.

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28

Dohcevic-Mitrovic, Zorana, Vinicius Araújo, Marko Radovic, Sonja Askrabic, Guilherme Costa, Maria Bernardi, Dejan Djokic, Bojan Stojadinovic, and Marko Nikolic. "Influence of oxygen vacancy defects and cobalt doping on optical, electronic and photocatalytic properties of ultrafine SnO2-δ nanocrystals." Processing and Application of Ceramics 14, no. 2 (2020): 102–12. http://dx.doi.org/10.2298/pac2002102d.

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Ultrafine pure and cobalt doped SnO2-? nanocrystals (Sn1-xCoxO2-?, 0 ? x ? 0.05) were synthesized by microwave-assisted hydrothermal method. The as-prepared nanocrystals have single phase tetragonal rutile structure. With increase of Co content (x > 0.01), Co entered into SnO2 lattice in mixed Co2+/Co3+ state. Pronounced blue shift of the band gap with cobalt doping originated from the combined effect of quantum confinement and Burnstain-Moss shift. Raman and photoluminescence study revealed oxygen deficient structure of SnO2-? for which the prevalent defects are in the form of in-plane oxygen vacancies. Co-doping induced decrease of in-plane oxygen vacancy concentration and luminescence quenching. SnO2-? exhibited significantly better photocatalytic activity under UV light irradiation, than Co-doped samples due to better UV light absorption and increased concentration of in-plane oxygen vacancies which, as shallow donors, enable better electron-hole separation and faster charge transport.
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29

APOSTOL, M., and L. VASILIU-DOLOC. "HIGH-TEMPERATURE SUPERCONDUCTIVITY FROM ELECTRON-LATTICE COUPLING." International Journal of Modern Physics B 06, no. 09 (May 10, 1992): 1539–59. http://dx.doi.org/10.1142/s0217979292000736.

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Within the polaron theory of superconductivity for La 2−x Sr x CuO 4 and La 2−x Ba x CuO 4 the coupling is considered between the charge carriers and both the stretching mode of the apical oxygens and the sheet-bending mode of the basal-plane oxygens, the latter via the tilting angle of the Cu-oxygen octahedra. The same tilting angle enters the coupling strengths of these lattice vibrations, leading to renormalized frequencies and their oxygen-isotope shifts. It is suggested that the anomalies occurring in the superconducting critical temperature, its isotope shift and the isotope shifts of the lattice frequencies around x=0.12 are related to the orthorhombic-tetragonal transition of these compounds.
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30

Tamilselvan, N., and Periyasamy Thilakan. "Development of Textured ITO Optical Windows for Photovoltaic Applications." Conference Papers in Energy 2013 (May 26, 2013): 1–5. http://dx.doi.org/10.1155/2013/560587.

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ITO thin films were deposited on glass substrates using rf magnetron sputtering. Deposition parameters such as the rf power and the oxygen dilution to the plasma are investigated. Films deposited with an increase in rf power were resulting in the film preferential orientation along (100) plane. Oxygen dilution to the plasma at low rf power of 30 W was found to result in a change in preferential orientation from (100) plane to (111) plane. SEM analysis revealed a spotty surface morphology for the (100) films and a granular morphology for the (111) films. The highest transmittance was found for the oxygen diluted (111) film. The highest optical bandgap of 4.33 eV was observed for the pure Ar deposited film. Details are discussed.
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31

Fang, Chao, Jing Zhang, Ying Huang, and Jianhao Chen. "First-Principles Calculations of Oxygen-Dislocation Interaction in Magnesium." Materials 13, no. 1 (December 26, 2019): 116. http://dx.doi.org/10.3390/ma13010116.

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The interaction between interstitial oxygen atoms and <a>-type screw dislocations was investigated via first-principles calculations to elucidate the effect of oxygen solutes on the deformation behaviors of Mg. The results show that repulsive interactions exist between basal screw dislocation cores and oxygen atoms, which would enable the full basal dislocation to bypass the oxygen atoms in the dislocation glide plane through the cross-slip process. This repulsion also increases the resistance to the motion of dissociated basal dislocations. Moreover, the energy of prismatic <a>-type screw dislocation cores is reduced by the presence of oxygen, which would stabilize the screw dislocation core on the prismatic plane, accordingly facilitating the prismatic slip. This information can complement the fundamental knowledge of alloying Mg using interstitial solutes.
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32

Barišić, S., I. Kupčić, and I. Batistić. "RAMAN MODES AND STRONG INTRAPLANAR OXYGEN-OXYGEN CHARGE FLUCTUATIONS IN YBa2Cu3O7." International Journal of Modern Physics B 03, no. 12 (December 1989): 2051–63. http://dx.doi.org/10.1142/s0217979289001317.

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It is shown that symmetric and antisymmetric (340 cm −1) Raman modes are strongly coupled respectively to the intracell, intraplanar oxygen-copper and oxygen-oxygen charge fluctuations in YBa 2 Cu 3 O 7. The dominant coupling arises from the variations of the crystal field with deformations. The anomalous behavior of the 340 cm −1 mode is thus attributed to the corresponding behavior of the in-plane oxygen-oxygen charge correlation function. The symmetric modes are continuous at Tc, and this contrast is examined within the existing theories. It appears that the Emery model is a suitable starting point for the explanation of the Raman mode behavior. The increase of the ep coupling from one high Tc family to another turns out to correlate with increase of Tc.
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33

YAGI, Hideaki, and Keiichi ICHIKAWA. "High Temperature Humidity Sensor Using a Limiting Current Type Plane Oxygen Sensor." Journal of the Ceramic Society of Japan 100, no. 1159 (1992): 282–86. http://dx.doi.org/10.2109/jcersj.100.282.

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34

Pintschovius, Lothar, Winfriedt Reichardt, Thomas Wolf, and Marion Klaeser. "In-plane anisotropy and temperature dependence of oxygen phonon modes in YBa2Cu3O6.6." Physica C: Superconductivity 388-389 (May 2003): 211–12. http://dx.doi.org/10.1016/s0921-4534(02)02380-8.

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35

Tringides, M., and R. Gomer. "Diffusion anisotropy of oxygen and of tungsten on the tungsten (211) plane." Journal of Chemical Physics 84, no. 7 (April 1986): 4049–61. http://dx.doi.org/10.1063/1.450066.

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36

Reznik, D., B. Keimer, F. Dogan, and I. A. Aksay. "qDependence of Self-Energy Effects of the Plane Oxygen Vibration in YBa2Cu3O7." Physical Review Letters 75, no. 12 (September 18, 1995): 2396–99. http://dx.doi.org/10.1103/physrevlett.75.2396.

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37

Al-Garni, A. Z., A. Z. Şahin, and B. S. Yilbas. "Active Cooling of a Hypersonic Plane Using Hydrogen, Methane, Oxygen and Fluorine." Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering 210, no. 1 (January 1996): 9–17. http://dx.doi.org/10.1243/pime_proc_1996_210_340_02.

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This paper studies active cooling of an aerospace plane using liquid hydrogen, liquid methane, liquid oxygen and liquid fluorine. An ascending optimized trajectory to minimize the heat load in the hypersonic part is used to perform the study, which includes cooling of the stagnation point, the leading edges of wings and engine and other parts of the aerospace plane that are close to the leading edges. The laminar case of the stagnation point and both laminar and turbulent cases for the leading edge heating have been considered. The amount of liquid coolant mass needed for cooling is calculated. A design of minimum inlet–outlet areas for the amount of liquid needed for cooling is made with consideration of the coolant's physical constraints in the liquid and gaseous states. The study shows that the ratio of masses of coolant to the initial total mass (initial total mass of the vehicle including fuel and coolant masses) is in the limit of the reachable range. The comparison shows that the hydrogen is a clear winner as a candidate for coolant and saves mass as compared to the other three coolants. The study shows that there are no fundamental barriers for the cooling system of the vehicle in terms of its coolant mass and area size for coolant passage.
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38

Cai, Zhi-Xiong, and S. D. Mahanti. "Monte Carlo studies of oxygen ordering in the YBa2Cu3O7−δ basal plane." Solid State Communications 67, no. 3 (July 1988): 287–91. http://dx.doi.org/10.1016/0038-1098(88)90618-7.

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39

TATEISHI, N., Y. SUZUKI, M. SOUTANI, and N. MAEDA. "F116. Plane imaging of oxygen saturation of flowing erythrocytes in microvascular networks." Biorheology 32, no. 2-3 (March 1995): 285. http://dx.doi.org/10.1016/0006-355x(95)92229-4.

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40

Kissinger, G., J. Dabrowski, Andreas Sattler, Timo Müller, and Wilfried von Ammon. "Two Paths of Oxide Precipitate Nucleation in Silicon." Solid State Phenomena 131-133 (October 2007): 293–302. http://dx.doi.org/10.4028/www.scientific.net/ssp.131-133.293.

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The coherent agglomeration of interstitial oxygen into single-plane and double-plane plates can explain the two peaks in the M-shaped nucleation curves in Czochralski silicon. The density of nucleation sites for the double-plane plates corresponds to the VO2 concentration. Ab initio calculations have shown that the agglomeration of oxygen atoms in single-plane and doubleplane plates is energetically favorable. These plates are under compressive strain. VO2 agglomeration plays only a minor role for modeling the M-shaped nucleation curves because of prior homogenization treatments. It is of much higher impact if as-grown wafers are subjected to nucleation anneals because of the higher vacancy concentration which was frozen in during crystal cooling. This results in higher nucleation rates at higher temperatures. Because the oxygen diffusivity below 700 °C is important for the nucleation rate and many controversial results about the diffusivity in this temperature range were published, we have analyzed the data from literature. We have demonstrated that the effective diffusivity of oxygen at temperatures below 700 °C which corresponds to the quasi equilibrium dimer concentration is very similar to the extrapolation from oxygen diffusivity at high temperature. The high effective diffusivities from out-diffusion and precipitation experiments, and the somewhat lower effective diffusivities from dislocation locking experiments are the result of an ongoing formation of fast diffusing dimers because the equilibrium is disturbed as the result of the strongly increasing difference in the diffusion length between interstitial oxygen and the fast diffusing dimer with decreasing temperature.
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41

Vandenbergen, AM, JD Cashion, GD Fallon, and BO West. "Crystal Structures, Mössbauer Spectra and Reactivity of Sn,II Salicylideneimines." Australian Journal of Chemistry 43, no. 9 (1990): 1559. http://dx.doi.org/10.1071/ch9901559.

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Single-crystal X-ray diffraction studies have been carried out on the tetradentate SnII complex N,N′-(4,5-dimethyl-1,2-phenylene ) bis ( salicylideneiminato )tin(II) [ Sn ( saldph )] and the tetradentate complex N-(2-oxidophenyl) salicylideneiminatotin (II) [ Sn ( salop )]. Sn ( saldph ) is a monomer and has the SnII ion 1.126(1)Ǻ above the plane of the O2N2 donors while Sn ( salop ) is dimeric with bridging between SnII ions by the oxygens of the oxidophenyl groups. SnII ions are raised above the O3N donor planes by 1.109(7)Ǻ while the molecules are bent along the bridging O-O axis with a dihedral angle between the chelate planes of 92.1°. The Mossbauer spectra of the complexes are reported. The SnII salicylideneimines react with H2O and oxygen but are inert to alkyl halides.
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42

PRZYBYLIŃSKA, H., M. HAVLIČEK, K. ŚWIĄTEK, and W. JANTSCH. "FERROMAGNETIC PRECIPITATES IN OXYGEN CONTAMINATED GaN:Fe." International Journal of Modern Physics B 23, no. 12n13 (May 20, 2009): 2989–93. http://dx.doi.org/10.1142/s0217979209062682.

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Ferromagnetic MOCVD grown GaN films doped with about 1% Fe and unintentionally contaminated with oxygen were investigated by electron spin resonance. Simultaneously with the paramagnetic resonance of isolated Fe 3+ on Ga sites numerous ferromagnetic resonance (FMR) signals were detected. The narrow linewidths (below 50 G at the easy magnetization orientation) indicated a well-defined crystallographic structure. In all investigated samples the presence of spheroidal magnetite ( Fe 3 O 4) precipitates was detected. The fact that the easy and hard axes changed direction at 105 K and the FMR signal in X band disappeared exactly below the Vervey transition temperature confirmed the identification unambiguously. Bcc iron particles with dimensions small enough to influence the magnetocrystalline anisotropy constant were also observed, but only in samples less contaminated with oxygen. Precipitates of both phases were arbitrarily oriented with respect to the GaN crystallographic axes. In addition, FMR signals related to two distinctly different hexagonally ordered phases could be distinguished, both with the easy magnetization directions lying in the basal plane. The high uniaxial and small in-plane anisotropy constants of one of them are close to those observed in small diameter hematite (α- Fe 2 O 3) nanoparticles. The other hexagonal phase has a Curie temperature of about 360 K and is, yet, unidentified.
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43

Mayeshiba, Tam, and Dane Morgan. "Strain effects on oxygen migration in perovskites." Physical Chemistry Chemical Physics 17, no. 4 (2015): 2715–21. http://dx.doi.org/10.1039/c4cp05554c.

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Computational results show that a 2% biaxial tensile strain may increase oxygen ion conduction, both in- and out-of-plane, by up to approximately three orders of magnitude at 300 K in the most strain-sensitive LaBO3 perovskites, where B = [Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Ga].
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44

Huang, Meina, Ju Li, Wenli Su, Xindi Huang, Bin Li, Minguang Fan, Lihui Dong, and Haixiang He. "Oriented construction of S-doped, exposed {001} facet BiOBr nanosheets with abundant oxygen vacancies and promoted visible-light-driven photocatalytic performance." CrystEngComm 22, no. 44 (2020): 7684–92. http://dx.doi.org/10.1039/d0ce01187h.

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S-doping orients the facet growth of BiOBr nanosheets from original exposed {010} plane towards {001}-dominant plane, resulting in narrower bandgap energy, higher efficient charges separation and oxygen vacancies (OVs) concentration.
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45

Cantoni, C., E. D. Specht, A. Goyal, X. Li, and M. Rupich. "Influence of oxygen deficiency on the out-of-plane tilt of epitaxial Y2O3 films on Ni–5%W tapes." Journal of Materials Research 24, no. 2 (February 2009): 520–25. http://dx.doi.org/10.1557/jmr.2009.0065.

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We analyzed the crystallographic c-axis tilt of (001) Y2O3 films grown on biaxially textured Ni–5%W tapes under different oxygen flux conditions. Results show that different tilting mechanisms were effective in films with different oxygen stoichiometry. Moreover, the structure of the film/substrate interface investigated by transmission electron microscopy, and the residual strain of the film investigated by x-ray diffraction were also dependent on the film oxygen content. Although the oxygen stoichiometric Y2O3 sample exhibited a coherent film/substrate interface and the sharpest out-of-plane texture, the films grown under reduced oxygen pressure exhibited a smaller overall c-axis tilt due to formation of interface dislocations and regions in which the film oxygen vacancies ordered to form a lattice superstructure.
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46

CHEN, YU, XINMING HUANG, and JIANWU WANG. "FUNCTIONS OF OVERSTEP CHEMISTRY CALCULATION OXYGEN IN HIGH Tc COPPER OXIDE SUPERCONDUCTORS." Modern Physics Letters B 19, no. 22 (September 30, 2005): 1083–86. http://dx.doi.org/10.1142/s0217984905008980.

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This paper studies the functions of overstep chemistry calculation oxygen δ in high Tc copper oxide superconductors and analyzes the relative experiments' results. It is believed that the function of overstep chemistry calculation oxygen in Y series high Tc copper oxide superconductors is to adjust the change of effective electric charge P on the [Cu-O] p link or [Cu-O] P plane and this affects the bonding intensity on the CuO 2 plane, which in turn, adjusts the Y series high oxide superconductor's Tc.
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47

KHOSROABADI, H., V. DAADMEHR, and M. AKHAVAN. "THE Pr AND OXYGEN CORRELATION IN THE GdPr123 SYSTEM." Modern Physics Letters B 16, no. 25 (October 30, 2002): 943–53. http://dx.doi.org/10.1142/s0217984902004366.

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We prepared single-phase polycrystalline Gd 1 - x Pr x Ba 2 Cu 3 O 7 - δ samples with x = 0, 0.10, 0.15, and 0.20. The deoxygenation process of these samples was performed by an annealing method. Electrical resistivity measurements revealed depression of the transition temperature with the increase of x and δ. We calculated the hole concentration in the CuO 2 plane for different values of x and δ. A linear dependence of transition temperature and hole concentration in the CuO 2 plane was found as a function of 2δ + x. It is proposed that a combination of the localization and filling of holes should be considered as the effective mechanisms for the appearance of the Pr anomaly in HTSCs.
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48

Panomsuwan, Gasidit, and Nagahiro Saito. "Effect of Oxygen Partial Pressure on Crystal Structure, Oxygen Vacancy, and Surface Morphology of Epitaxial SrTiO3 Thin Films Grown by Ion Beam Sputter Deposition." Oxygen 1, no. 1 (September 2, 2021): 62–72. http://dx.doi.org/10.3390/oxygen1010007.

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Epitaxial SrTiO3 (STO) thin films were grown on (001)-oriented LaAlO3 (LAO) substrates at 800 °C by an ion beam sputter deposition (IBSD). Oxygen partial pressure (PO2) was varied at 1.5 × 10−5, 1.5 × 10−4, and 1.5 × 10−3 Torr during the growth. The effects of PO2 on crystal structure, oxygen vacancy, and surface morphology of the STO films were investigated and are discussed to understand their correlation. It was found that PO2 played a significant role in influencing the crystal structure, oxygen vacancy, and surface morphology of the STO films. All STO films grew on the LAO substrates under a compressive strain along an in-plane direction (a- and b-axes) and a tensile strain along the growth direction (c-axis). The crystalline quality of STO films was slightly improved at higher PO2. Oxygen vacancy was favorably created in the STO lattice grown at low PO2 due to a lack of oxygen during growth and became suppressed at high PO2. The existence of oxygen vacancy could result in a lattice expansion in both out-of-plane and in-plane directions due to the presence of Ti3+ instead of Ti4+ ions. The surface roughness of the STO films gradually decreased and was nearly close to that of the bare LAO substrate at high PO2, indicating a two-dimensional (2D) growth mode. The results presented in this work provide a correlation among crystal structure, oxygen vacancy, and surface morphology of the epitaxial STO films grown by IBSD, which form a useful guideline for further study.
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49

Dobrota, Ana S., Igor A. Pašti, Slavko V. Mentus, and Natalia V. Skorodumova. "A general view on the reactivity of the oxygen-functionalized graphene basal plane." Physical Chemistry Chemical Physics 18, no. 9 (2016): 6580–86. http://dx.doi.org/10.1039/c5cp07612a.

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Mohamad Noh, Mohamad Firdaus, Habib Ullah, Nurul Affiqah Arzaee, Azhar Ab Halim, Muhammad Amir Faizal Abdul Rahim, Nurul Aida Mohamed, Javad Safaei, Siti Nur Farhana Mohd Nasir, Guoxiu Wang, and Mohd Asri Mat Teridi. "Rapid fabrication of oxygen defective α-Fe2O3(110) for enhanced photoelectrochemical activities." Dalton Transactions 49, no. 34 (2020): 12037–48. http://dx.doi.org/10.1039/d0dt00406e.

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