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Journal articles on the topic 'Strongly correlated electronic system'

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Author: Grafiati

Published: 10 March 2023

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1

Antonov, V. N., L. V. Bekenov, and A. N. Yaresko. "Electronic Structure of Strongly Correlated Systems." Advances in Condensed Matter Physics 2011 (2011): 1–107. http://dx.doi.org/10.1155/2011/298928.

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The article reviews the rich phenomena of metal-insulator transitions, anomalous metalicity, taking as examples iron and titanium oxides. The diverse phenomena include strong spin and orbital fluctuations, incoherence of charge dynamics, and phase transitions under control of key parameters such as band filling, bandwidth, and dimensionality. Another important phenomena presented in the article is a valence fluctuation which occur often in rare-earth compounds. We consider some Ce, Sm, Eu, Tm, and Yb compounds such as Ce, Sm and Tm monochalcogenides, Sm and Yb borides, mixed-valent and charge-ordered Sm, Eu and Yb pnictides and chalcogenides R4X3and R3X4(R = Sm, Eu, Yb; X = As, Sb, Bi), intermediate-valence YbInCu4and heavy-fermion compounds YbMCu4(M = Cu, Ag, Au, Pd). Issues addressed include the nature of the electronic ground states, the metal-insulator transition, the electronic and magnetic structures. The discussion includes key experiments, such as optical and magneto-optical spectroscopic measurements, x-ray photoemission and x-ray absorption, bremsstrahlung isochromat spectroscopy measurements as well as x-ray magnetic circular dichroism.

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2

Dagotto, E. "Complexity in Strongly Correlated Electronic Systems." Science 309, no. 5732 (July 8, 2005): 257–62. http://dx.doi.org/10.1126/science.1107559.

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3

RICE, T. M., and F. C. ZHANG. "ELECTRONIC PROPERTIES OF STRONGLY CORRELATED SYSTEMS." International Journal of Modern Physics B 02, no. 05 (October 1988): 627–29. http://dx.doi.org/10.1142/s0217979288000457.

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The observation that the energy scale of the magnetic excitations determined by the Heisenberg coupling constant ( J ≈ 0.1eV ) is much smaller than the charge excitation energies (≳ 2eV ) places the stoichiomatic Cu-oxides with formal valence Cu 2+ in the class of Mott insulators. Holes introduced into the CuO 2 layers can therefore be described by an effective Hamiltonian which contains a hopping term for holes between nearest neighbor CuO 4-squares (matrix element, t ) in addition to the Heisenberg term1). This effective Hamiltonian is restricted to the Hilbert subspace with one or less electrons in the Wannier orbital on each CuO 4 square. The Wannier orbital is made up from the [Formula: see text] Cu-orbital and a combination of the 2p O-orbitals with the same symmetry. The hybridization energy is maximized for a hole by forming a spin singlet combination of these orbitals so that the form of the effective Hamiltonian does not differ in form2) from that of a single band Hubbard model in the strongly correlated limit. The inclusion of O-O hopping does not change this conclusion3). Estimates of the parameter t , give a value t ≈ 0.5eV so that the ratio J/t ≪ l .

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4

Tung, Nguen Dan, and Nikolay Plakida. "Charge dynamics in strongly-correlated electronic systems." International Journal of Modern Physics B 32, no. 29 (November 20, 2018): 1850327. http://dx.doi.org/10.1142/s0217979218503277.

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We consider the dynamic charge susceptibility and the charge density waves in strongly-correlated electronic systems within the two-dimensional t-J-V model. Using the equation of motion method for the relaxation functions in terms of the Hubbard operators, we calculate the static susceptibility and the spectrum of charge fluctuations as functions of doped hole concentrations and temperature. Charge density waves emerge for a sufficiently strong intersite Coulomb interaction. Calculation of the dynamic charge susceptibility reveals a strong damping of charge density waves for a small hole doping and propagating high-energy charge excitations at large doping.

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5

Noce, C. "Green functions for strongly correlated electronic systems." Journal of Physics: Condensed Matter 3, no. 40 (October 7, 1991): 7819–30. http://dx.doi.org/10.1088/0953-8984/3/40/003.

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6

Yanagisawa, T., M. Miyazaki, and K. Yamaji. "Strongly correlated superconductivity." International Journal of Modern Physics B 32, no. 17 (July 9, 2018): 1840023. http://dx.doi.org/10.1142/s0217979218400234.

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We investigate the electronic properties of the ground state of strongly correlated electron systems. We use an optimization variational Monte Carlo method for the two-dimensional Hubbard model and the three-band d-p model. The many-body wavefunction is improved and optimized by introducing variational parameters that control the correlation between electrons. The on-site repulsive Coulomb interaction U induces strong antiferromagnetic (AF) correlation. There is a crossover from weakly to strongly correlated regions as U increases. We show an idea that high-temperature superconductivity occurs as a result of this crossover in the strongly correlated region where U is greater than the bandwidth.

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7

Kobayashi, Kenji, and Kaoru Iguchi. "Improved wave function for strongly correlated electronic systems." Physical Review B 47, no. 4 (January 15, 1993): 1775–81. http://dx.doi.org/10.1103/physrevb.47.1775.

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8

Nagaosa, Naoto. "Spin-charge separation in strongly correlated electronic systems." Journal of Physics: Condensed Matter 10, no. 49 (December 14, 1998): 11385–94. http://dx.doi.org/10.1088/0953-8984/10/49/025.

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9

Becker, K. W., and P. Fulde. "Ground-state energy of strongly correlated electronic systems." Zeitschrift f�r Physik B Condensed Matter 72, no. 4 (December 1988): 423–27. http://dx.doi.org/10.1007/bf01314521.

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10

Boyarskiı̆, L. A., S. P. Gabuda, and S. G. Kozlova. "Fluctuations and nonuniformities in strongly correlated electronic systems." Low Temperature Physics 31, no. 3 (March 2005): 308–12. http://dx.doi.org/10.1063/1.1884434.

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11

Hanamura, Eiichi, Nguyen Trung Dan, and Yukito Tanabe. "Excitonic cluster model of strongly correlated electronic systems." Journal of Physics: Condensed Matter 12, no. 22 (May 17, 2000): L345—L352. http://dx.doi.org/10.1088/0953-8984/12/22/103.

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12

Carlson, E. W., Shuo Liu, B. Phillabaum, and K. A. Dahmen. "Decoding Spatial Complexity in Strongly Correlated Electronic Systems." Journal of Superconductivity and Novel Magnetism 28, no. 4 (January 28, 2015): 1237–43. http://dx.doi.org/10.1007/s10948-014-2898-0.

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13

Lombardo, P., J. C. Guisiano, and R. Hayn. "Full diagonal disorder in a strongly correlated system." Physica B: Condensed Matter 403, no. 19-20 (October 2008): 3485–89. http://dx.doi.org/10.1016/j.physb.2008.05.010.

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14

FERRAZ, A., and Y. OHMURA. "GROUND STATE INSTABILITY OF STRONGLY CORRELATED ELECTRONS." Modern Physics Letters B 06, no. 16n17 (July 1992): 1063–68. http://dx.doi.org/10.1142/s0217984992001903.

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Summing up a special series of skeleton diagrams we show that in a strongly correlated electron fluid the proper irreducible electron-hole scattering kernel K is singular for sufficiently large Coulomb interactions. The instability of the electronic ground state is exhibited in the purely imaginary pole of K. This pole determines the decay rate of the unstable ground state and signals a phase transition of the whole electron system.

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15

Yunoki, S., Y. Mizuno, and S. Maekawa. "Magnetic properties of a magnetic impurity in a strongly correlated electronic system." Physica B: Condensed Matter 230-232 (February 1997): 1054–57. http://dx.doi.org/10.1016/s0921-4526(96)00814-9.

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16

Mancini and Avella. "SYMMETRIES IN THE PHYSICS OF STRONGLY CORRELATED ELECTRONIC SYSTEMS." Condensed Matter Physics 1, no. 1 (1998): 11. http://dx.doi.org/10.5488/cmp.1.1.11.

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17

Maekawa, Sadamichi, and Takami Tohyama. "Electronic excitations in strongly correlated systems; 1D vs. 2D." Physica C: Superconductivity 282-287 (August 1997): 286–89. http://dx.doi.org/10.1016/s0921-4534(97)00260-8.

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18

Wiegmann, P. B. "Towards a gauge theory of strongly correlated electronic systems." Physica C: Superconductivity 153-155 (June 1988): 103–8. http://dx.doi.org/10.1016/0921-4534(88)90504-7.

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19

HANAGURI, Tetsuo. "Electronic States of Surfaces of Strongly Correlated Electron Systems." Hyomen Kagaku 27, no. 4 (2006): 226–31. http://dx.doi.org/10.1380/jsssj.27.226.

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20

Head-Gordon, Martin, Gregory J. O. Beran, Alex Sodt, and Yousung Jung. "Fast electronic structure methods for strongly correlated molecular systems." Journal of Physics: Conference Series 16 (January 1, 2005): 233–42. http://dx.doi.org/10.1088/1742-6596/16/1/031.

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21

Dagotto, Elbio, Robert Joynt, Adriana Moreo, Silvia Bacci, and Eduardo Gagliano. "Strongly correlated electronic systems with one hole: Dynamical properties." Physical Review B 41, no. 13 (May 1, 1990): 9049–73. http://dx.doi.org/10.1103/physrevb.41.9049.

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22

Iga, F., T. Nishiguchi, and Y. Nishihara. "Study of strongly correlated electron alloy system Y1−xCaxTiO3." Physica B: Condensed Matter 206-207 (February 1995): 859–61. http://dx.doi.org/10.1016/0921-4526(94)00608-x.

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23

Cheng, Chang. "Study on superconductivity of strongly correlated electronic systems by high voltage method." Journal of Physics: Conference Series 2387, no. 1 (November 1, 2022): 012023. http://dx.doi.org/10.1088/1742-6596/2387/1/012023.

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Abstract The study of condensed matter system with strongly correlated electron characteristics shows that the strongly correlated electron leads the system to have macroscopic quantum characteristics, which has multiple degrees of freedom in practical application and strong coupling relationship between them, resulting in abundant and peculiar quantum phenomena in the system. Nowadays, the research on unconventional superconductors is more and more in-depth, which not only expands the topics and ideas of practical research, but also makes excellent achievements. Therefore, on the basis of understanding the strongly correlated electron system, this paper studies the deep analysis of Fermion superconductor, copper oxide superconductor and iron based superconductor by means of high pressure experiment, so as to provide effective information for better understanding the microscopic mechanism on the basis of mastering the relevant unconventional superconductor refined research methods.

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24

Hallberg, Karen A., and Carlos A. Balseiro. "Finite-size study of a magnetic impurity in a strongly correlated electronic system." Physica C: Superconductivity 235-240 (December 1994): 2305–6. http://dx.doi.org/10.1016/0921-4534(94)92374-4.

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25

Nagaosa, Naoto. "Competing orders and multicritical phenomena in strongly correlated electronic systems." Physica C: Superconductivity 357-360 (September 2001): 53–60. http://dx.doi.org/10.1016/s0921-4534(01)00194-0.

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26

Sushkov, O. P. "Relation between spin and pseudospin in strongly correlated electronic systems." Physica B: Condensed Matter 259-261 (January 1999): 783–84. http://dx.doi.org/10.1016/s0921-4526(98)00862-x.

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27

SUSHKOV, O. P. "RELATION BETWEEN SPIN AND PSEUDOSPIN IN STRONGLY CORRELATED ELECTRONIC SYSTEMS." International Journal of Modern Physics B 13, no. 05n06 (March 10, 1999): 749–53. http://dx.doi.org/10.1142/s0217979299000643.

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Dyson equation which relates the single hole Green's functions for a given pseudospin and given spin is derived for t-J model. This equation is applied to explain the experimental spectra for angle resolved photoemission in insulating Copper Oxide.

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28

Rzchowski, M. S., and R. Joynt. "Electronic inhomogeneity at magnetic domain walls in strongly correlated systems." Europhysics Letters (EPL) 67, no. 2 (July 2004): 287–93. http://dx.doi.org/10.1209/epl/i2004-10050-8.

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29

Perakis, I. E. "Ultrafast dephasing in strongly correlated systems." physica status solidi (b) 238, no. 3 (August 2003): 502–8. http://dx.doi.org/10.1002/pssb.200303170.

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30

Di Ciolo, Andrea, and Adolfo Avella. "Strongly Correlated Electron Systems: An Operatorial Perspective." Physica B: Condensed Matter 536 (May 2018): 359–63. http://dx.doi.org/10.1016/j.physb.2017.10.006.

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31

Ueda, Kazuo, and Yasufumi Yamashita. "Magnetism in strongly correlated and frustrated systems." Physica B: Condensed Matter 359-361 (April 2005): 626–32. http://dx.doi.org/10.1016/j.physb.2005.01.185.

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32

Kitaoka, Y., H. Tou, G. q. Zheng, K. Ishida, K. Asayama, T. C. Kobayashi, A. Kohda, et al. "NMR study of strongly correlated electron systems." Physica B: Condensed Matter 206-207 (February 1995): 55–61. http://dx.doi.org/10.1016/0921-4526(94)00365-3.

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33

Kumar, Anil, M. Kamal Warshi, Archna Sagdeo, and P. R. Sagdeo. "Investigations on the Electronic Structure of the Strongly Correlated Electron System Cr-Doped PrFeO3." Journal of Physical Chemistry C 125, no. 25 (June 17, 2021): 14048–55. http://dx.doi.org/10.1021/acs.jpcc.1c02719.

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34

Hotta, Chisa. "Introduction of localized spins to strongly correlated one-dimensional electronic system at quarter-filling." Journal of Low Temperature Physics 142, no. 3-4 (February 2006): 291–96. http://dx.doi.org/10.1007/bf02679510.

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35

Hotta, Chisa. "Introduction of Localized Spins to Strongly Correlated One-Dimensional Electronic System at Quarter-Filling." Journal of Low Temperature Physics 142, no. 3-4 (June 7, 2006): 295–300. http://dx.doi.org/10.1007/s10909-006-9185-9.

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36

Hallberg, K. A., and C. A. Balseiro. "Static and dynamical properties of a magnetic impurity in a strongly correlated electronic system." Physical Review B 52, no. 1 (July 1, 1995): 374–77. http://dx.doi.org/10.1103/physrevb.52.374.

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37

Didukh, Leonid, Oleksandr Kramar, and Yuriy Skorenkyy. "Metallic ferromagnetism in an orbitally degenerate system of strongly correlated electrons." Physica B: Condensed Matter 359-361 (April 2005): 681–83. http://dx.doi.org/10.1016/j.physb.2005.01.191.

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38

Plakida. "Microscopic theory of high-temperature superconductivity in strongly correlated electronic systems." Condensed Matter Physics 23, no. 4 (December 2020): 43701. http://dx.doi.org/10.5488/cmp.23.43701.

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39

Imada, Masatoshi, and Takashi Miyake. "Electronic Structure Calculation by First Principles for Strongly Correlated Electron Systems." Journal of the Physical Society of Japan 79, no. 11 (November 15, 2010): 112001. http://dx.doi.org/10.1143/jpsj.79.112001.

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40

Wiegmann, P. B. "Superconductivity in Strongly Correlated Electronic Systems and Confinement versus Deconfinement Phenomenon." Physical Review Letters 60, no. 23 (June 6, 1988): 2445. http://dx.doi.org/10.1103/physrevlett.60.2445.3.

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41

Wiegmann, P. B. "Superconductivity in strongly correlated electronic systems and confinement versus deconfinement phenomenon." Physical Review Letters 60, no. 9 (February 29, 1988): 821–24. http://dx.doi.org/10.1103/physrevlett.60.821.

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42

Onari, Seiichiro, Tetsuya Hata, Yukio Tanaka, and Jun-ichiro Inoue. "Electronic state on the surface in the strongly correlated electron systems." Journal of Physics and Chemistry of Solids 69, no. 12 (December 2008): 3307–9. http://dx.doi.org/10.1016/j.jpcs.2008.06.076.

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43

Protogenov, Alexander. "Topological excitations and phase transition hierarchy in strongly correlated electronic systems." Physica C: Superconductivity and its Applications 162-164 (December 1989): 791–92. http://dx.doi.org/10.1016/0921-4534(89)91262-8.

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44

Seibold, G. "Charge instabilities in strongly correlated bilayer systems." European Physical Journal B - Condensed Matter 35, no. 2 (September 1, 2003): 177–89. http://dx.doi.org/10.1140/epjb/e2003-00267-3.

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45

Edelstein, Alan S. "An overview of strongly correlated electron systems." Journal of Magnetism and Magnetic Materials 256, no. 1-3 (January 2003): 430–48. http://dx.doi.org/10.1016/s0304-8853(02)00697-2.

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46

Kuzian, Roman. "Methods of Modeling of Strongly Correlated Electron Systems." Nanomaterials 13, no. 2 (January 5, 2023): 238. http://dx.doi.org/10.3390/nano13020238.

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The discovery of high-Tc superconductivity in cuprates in 1986 moved strongly correlated systems from exotic worlds interesting only for pure theorists to the focus of solid-state research. In recent decades, the majority of hot topics in condensed matter physics (high-Tc superconductivity, colossal magnetoresistance, multiferroicity, ferromagnetism in diluted magnetic semiconductors, etc.) have been related to strongly correlated transition metal compounds. The highly successful electronic structure calculations based on density functional theory lose their predictive power when applied to such compounds. It is necessary to go beyond the mean field approximation and use the many-body theory. The methods and models that were developed for the description of strongly correlated systems are reviewed together with the examples of response function calculations that are needed for the interpretation of experimental information (inelastic neutron scattering, optical conductivity, resonant inelastic X-ray scattering, electron energy loss spectroscopy, angle-resolved photoemission, electron spin resonance, and magnetic and magnetoelectric properties). The peculiarities of (quasi-) 0-, 1-, 2-, and 3- dimensional systems are discussed.

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47

Lacroix, Claudine. "Magnetic properties of strongly frustrated and correlated systems." Physica B: Condensed Matter 404, no. 19 (October 2009): 3038–41. http://dx.doi.org/10.1016/j.physb.2009.07.137.

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48

Tokura, Yoshinori. "Electronic Structures and Properties in Strongly Correlated Electron Systems: Perovskite-like Titanates." Japanese Journal of Applied Physics 32, S3 (January 1, 1993): 209. http://dx.doi.org/10.7567/jjaps.32s3.209.

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49

Irkhin, V. Yu, and Yu N. Skryabin. "Electronic States and the Anomalous Hall Effect in Strongly Correlated Topological Systems." Journal of Experimental and Theoretical Physics 133, no. 1 (July 2021): 116–23. http://dx.doi.org/10.1134/s1063776121060030.

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50

Karchev, N. I. "Chiral spin states, hole dynamics, and superconductivity in strongly correlated electronic systems." Physical Review B 44, no. 9 (September 1, 1991): 4576–86. http://dx.doi.org/10.1103/physrevb.44.4576.

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