Journal articles on the topic 'Magnetism'

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1

Victora, R. H. "Magnetism, magnetics and microstructure." Ultramicroscopy 47, no. 4 (December 1992): 318–22. http://dx.doi.org/10.1016/0304-3991(92)90160-l.

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2

Lacerda, Danielle Christine Othon. "Saberes ocultos no Brasil Império: a arte da cura pelo magnetismo animal e a busca pela legitimidade * Hidden knowledge in Brazil Empire: the art of cure for animal magnetism and the search for legitimacy." História e Cultura 7, no. 2 (December 2, 2018): 91. http://dx.doi.org/10.18223/hiscult.v7i2.2681.

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Os princípios e a prática do magnetismo animal consolidaram-se na França poucos anos antes da Revolução Francesa acontecer. Em meio a polêmicas e um crescente número de adeptos, o magnetismo animal ultrapassa as barreiras do tempo e as fronteiras espaciais, chegando ao Brasil nas primeiras décadas do século XIX por meio do imigrante francês Leopold Gamard. O objetivo deste trabalho foi compreender as tentativas de Gamard de legitimar o magnetismo animal como prática curativa, perante as instituições científicas médicas e a opinião pública na Corte imperial. Para tanto, examinamos periódicos científicos e jornais populares na tentativa de juntar fragmentos para recompor a intrigante trajetória de Leopold Gamard e que ajudaram a tecer a trama das relações sociais na construção de representações e apropriações da prática do magnetismo animal, como uma alternativa para cura de moléstias.*The principles and practice of animal magnetism were consolidated in France a few years before the French Revolution took place. Amid controversy and a growing number of adepts, animal magnetism surpasses the barriers of time and space frontiers, arriving in Brazil in the first decades of the nineteenth century through the French immigrant Leopold Gamard. The purpose of this work was to understand Gamard's attempts to legitimize animal magnetism as a curative practice before medical scientific institutions and public opinion in the imperial court. In order to do so, we examined popular scientific journals and newspapers in an attempt to combine fragments to reconstruct Leopold Gamard's intriguing trajectory and helped to weave the fabric of social relations in the construction of representations and appropriations of the practice of animal magnetism as an alternative for healing diseases
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3

Handayani, Ismi, Muhammad Abdur Rasyid, Rifdah Fadhilah, and Hyang Iman Kinasih Gusti. "Beneficiation Processing of Magnetite ore from Lampung as Dense Media for Dense Medium Separator in Coal Washing Plant." E3S Web of Conferences 543 (2024): 01006. http://dx.doi.org/10.1051/e3sconf/202454301006.

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Until recently, coal washing plants in Indonesia are still using imported magnetite from Australia as dense media for dense medium separator units. To be effectively utilized as a dense media, magnetite ore needs to be concentrated to remove gangue minerals so that the final product will have more than 95% magnetic content, 95% weight passing 53 microns, and relative density ranging from 4.9 – 5.2 g/cm3. Experimental studies have been performed at the Department of Metallurgical Engineering ITB to concentrate fine magnetite ores from Lampung Province. Two process routes were chosen: grinding-magnetic separation and magnetic separation-grinding. Products from the two routes were sieve size analyzed, assayed and characterized. Magnetism characteristic was analyzed with VSM and relative density was measured with pycnometer. The first process route products have maximum magnetic content of 99.1% and particle weight passing 53 microns of 95.7%, while the second route have magnetic content of 95.2% and particle passing 53 microns of 97.1%. Concentrates from both routes have the same relative density of 4.5 g/cm3. Characterization by XRF and AAS gives Fe content of 46.6% and 48.8% for the first route product, and 52.1% and 52.9% for the second route. Lampung magnetite ore gives lower magnetism characteristic compare to Australian magnetite ore. Finer particle size gave lower magnetic saturation value, hence lower magnetism.
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4

Falicov, L. M., Daniel T. Pierce, S. D. Bader, R. Gronsky, Kristl B. Hathaway, Herbert J. Hopster, David N. Lambeth, et al. "Surface, interface, and thin-film magnetism." Journal of Materials Research 5, no. 6 (June 1990): 1299–340. http://dx.doi.org/10.1557/jmr.1990.1299.

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A comprehensive review and state of the art in the field of surface, interface, and thin-film magnetism is presented. New growth techniques which produce atomically engineered novel materials, special characterization techniques to measure magnetic properties of low-dimensional systems, and computational advances which allow large complex calculations have together stimulated the current activity in this field and opened new opportunities for research. The current status and issues in the area of material growth techniques and physical properties, characterization methods, and theoretical methods and ideas are reviewed. A fundamental understanding of surface, interface, and thin-film magnetism is of importance to many applications in magnetics technology, which is also surveyed. Questions of fundamental and technological interest that offer opportunities for exciting future research are identified.
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5

de Maupassant, Guy. "Magnetism." Academic Medicine 93, no. 10 (October 2018): 1480. http://dx.doi.org/10.1097/acm.0000000000002349.

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6

Wills, Andrew S. "Magnetism." Annual Reports Section "A" (Inorganic Chemistry) 102 (2006): 469. http://dx.doi.org/10.1039/b508271b.

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7

Yanai, Akira. "MAGNETISM." Plastic and Reconstructive Surgery 106, no. 3 (September 2000): 747. http://dx.doi.org/10.1097/00006534-200009030-00063.

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8

Hallett, Mark. "Magnetism." JAMA 262, no. 4 (July 28, 1989): 538. http://dx.doi.org/10.1001/jama.1989.03430040110036.

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9

Gibbs, M. R. J. "Magnetism: Current issues in amorphous magnetism." Physics Bulletin 36, no. 6 (June 1985): 242. http://dx.doi.org/10.1088/0031-9112/36/6/014.

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10

KING, JOHN W., and JAMES E. T. CHANNELL. "SEDIMENTARY MAGNETISM, ENVIRONMENTAL MAGNETISM, AND MAGNETOSTRATIGRAPHY." Reviews of Geophysics 29, S1 (January 1991): 358–70. http://dx.doi.org/10.1002/rog.1991.29.s1.358.

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11

Schüler, Dirk, and Edmund Baeuerlein. "Dynamics of Iron Uptake and Fe3O4 Biomineralization during Aerobic and Microaerobic Growth of Magnetospirillum gryphiswaldense." Journal of Bacteriology 180, no. 1 (January 1, 1998): 159–62. http://dx.doi.org/10.1128/jb.180.1.159-162.1998.

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ABSTRACT Iron uptake and magnetite (Fe3O4) crystal formation could be studied in the microaerophilic magnetic bacteriumMagnetospirillum gryphiswaldense by using a radioactive tracer method for iron transport and a differential light-scattering technique for magnetism. Magnetite formation occurred only in a narrow range of low oxygen concentration, i.e., 2 to 7 μM O2 at 30°C. Magnetic cells stored up to 2% iron as magnetite crystals in intracytoplasmic vesicles. This extraordinary uptake of iron was coupled tightly to the biomineralization of up to 60 magnetite crystals with diameters of 42 to 45 nm.
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12

Gantet, Claire. "La médecine au risque de ses publics: les Archives du magnétisme et du somnambulisme (Strasbourg, 1787-1788)." Diciottesimo Secolo 8 (July 1, 2023): 67–78. http://dx.doi.org/10.36253/ds-14150.

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Mesmerism was built in newspapers and in response to newspapers. Never before probably had an issue of public health been discussed with so much verbal violence. Whom henceforth was recognized medical authority? The Archiv für Magnetismus und Somnambulismus [Archives of Magnetism and Somnambulism] was published in Strasbourg by the physics professor Johann Lorenz Böckmann in 1788-1789, in 8 volumes of over 100 pages. It was the only scientific journal on animal magnetism that really operated as a forum on the new therapy. It attempted to correct the disastrous effect of the Parisian condemnation of the notion of a universal fluid (that was put forward by Franz Anton Mesmer) in August 1784 and to promote a scientific discourse by denouncing anonymous articles.
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13

Jin, Jianping, Xinran Zhu, Pengchao Li, Yanjun Li, and Yuexin Han. "Clean Utilization of Limonite Ore by Suspension Magnetization Roasting Technology." Minerals 12, no. 2 (February 17, 2022): 260. http://dx.doi.org/10.3390/min12020260.

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As a typical refractory iron ore, the utilization of limonite ore with conventional mineral processing methods has great limitations. In this study, suspension magnetization roasting technology was developed and utilized to recover limonite ore. The influences of roasting temperature, roasting time, and reducing gas concentration on the magnetization roasting process were investigated. The optimal roasting conditions were determined to be a roasting temperature of 480 °C, a roasting time of 12.5 min, and a reducing gas concentration of 20%. Under optimal conditions, an iron concentrate grade of 60.12% and iron recovery of 91.96% was obtained. The phase transformation, magnetism variation, and microstructure evolution behavior were systematically analyzed by X-ray diffraction, vibrating sample magnetometer, and scanning electron microscope. The results indicated that hematite and goethite were eventually transformed into magnetite during the magnetization roasting process. Moreover, the magnetism of roasted products significantly improved due to the formation of ferrimagnetic magnetite in magnetization roasting. This study has implications for the utilization of limonite ore using suspension magnetization roasting technology.
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14

Freeman, Arthur J., and Kohji Nakamura. "Computational quantum magnetism: Role of noncollinear magnetism." Journal of Magnetism and Magnetic Materials 321, no. 7 (April 2009): 894–98. http://dx.doi.org/10.1016/j.jmmm.2008.11.107.

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15

Mamiya, Hiroaki. "Potential of Neutron Transmission Spectroscopy in Magnetism and Magnetics." hamon 28, no. 3 (August 10, 2018): 123–26. http://dx.doi.org/10.5611/hamon.28.3_123.

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16

Li, Jinhua, Nicolas Menguy, Marie-Anne Arrio, Philippe Sainctavit, Amélie Juhin, Yinzhao Wang, Haitao Chen, et al. "Controlled cobalt doping in the spinel structure of magnetosome magnetite: new evidences from element- and site-specific X-ray magnetic circular dichroism analyses." Journal of The Royal Society Interface 13, no. 121 (August 2016): 20160355. http://dx.doi.org/10.1098/rsif.2016.0355.

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The biomineralization of magnetite nanocrystals (called magnetosomes) by magnetotactic bacteria (MTB) has attracted intense interest in biology, geology and materials science due to the precise morphology of the particles, the chain-like assembly and their unique magnetic properties. Great efforts have been recently made in producing transition metal-doped magnetosomes with modified magnetic properties for a range of applications. Despite some successful outcomes, the coordination chemistry and magnetism of such metal-doped magnetosomes still remain largely unknown. Here, we present new evidences from X-ray magnetic circular dichroism (XMCD) for element- and site-specific magnetic analyses that cobalt is incorporated in the spinel structure of the magnetosomes within Magnetospirillum magneticum AMB-1 through the replacement of Fe 2+ ions by Co 2+ ions in octahedral ( O h ) sites of magnetite. Both XMCD at Fe and Co L 2,3 edges, and energy-dispersive X-ray spectroscopy on transmission electron microscopy analyses reveal a heterogeneous distribution of cobalt occurring either in different particles or inside individual particles. Compared with non-doped one, cobalt-doped magnetosome sample has lower Verwey transition temperature and larger magnetic coercivity, related to the amount of doped cobalt. This study also demonstrates that the addition of trace cobalt in the growth medium can significantly improve both the cell growth and the magnetosome formation within M. magneticum AMB-1. Together with the cobalt occupancy within the spinel structure of magnetosomes, this study indicates that MTB may provide a promising biomimetic system for producing chains of metal-doped single-domain magnetite with an appropriate tuning of the magnetic properties for technological and biomedical applications.
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17

Li, Y., S. Yuan, Y. Han, S. Zhang, and P. Gao. "Laboratory study on magnetization reduction of CO." Journal of Mining and Metallurgy, Section B: Metallurgy 54, no. 3 (2018): 393–99. http://dx.doi.org/10.2298/jmmb180711016l.

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In this study, magnetizing roasting in fluidized bed was employed to separate iron minerals from red mud. The effect of treatment conditions on product quality was investigated. In addition, the phase transformation, changes in magnetism, and microstructures were studied by thermodynamic analysis, chemical analysis, X-ray diffraction technique (XRD), vibrating sample magnetometer (VSM), and optical microscopy. The magnetic concentrates with the total iron grade of 57.65% and recovery of 90.04% were obtained under the optimum conditions. XRD and chemical analysis demonstrated that 92% iron minerals in red mud converted to magnetite. VSM further confirmed that the magnetism of roasting products was strongly enhanced, and the specific susceptibility increased from 1.9?10-5 m3/kg to 2.9?10-4 m3/kg after magnetizing roasting. Hence, fluidized magnetizing roasting is an effective technology for recovering iron minerals from high-iron red mud.
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18

Vidotto, A. A. "The effects of stellar winds and magnetic fields on exoplanets." Proceedings of the International Astronomical Union 9, S302 (August 2013): 228–36. http://dx.doi.org/10.1017/s1743921314002154.

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AbstractThe great majority of exoplanets discovered so far are orbiting cool, low-mass stars whose properties are relatively similar to the Sun. However, the stellar magnetism of these stars can be significantly different from the solar one, both in topology and intensity. In addition, due to the present-day technology used in exoplanetary searches, most of the currently known exoplanets are found orbiting at extremely close distances to their host stars (< 0.1 au). The dramatic differences in stellar magnetism and orbital radius can make the interplanetary medium of exoplanetary systems remarkably distinct from that of the Solar System. To constrain interactions between exoplanets and their host-star's magnetised winds and to characterise the interplanetary medium that surrounds exoplanets, more realistic stellar wind models, which account for factors such as stellar rotation and the complex stellar magnetic field configurations of cool stars, must be employed. Here, I briefly review the latest progress made in data-driven modelling of magnetised stellar winds. I also show that the interaction of the stellar winds with exoplanets can lead to several observable signatures, some of which that are absent in our own Solar System.
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19

Walser, Martin. "Goethe's Magnetism." South Atlantic Review 50, no. 4 (November 1985): 3. http://dx.doi.org/10.2307/3199379.

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20

Basavaiah, N. "Environmental Magnetism." PAGES news 11, no. 2-3 (October 2003): 34. http://dx.doi.org/10.22498/pages.11.2-3.34.

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21

Kovalenko, V. F., and E. L. Nagaev. "Photoinduced magnetism." Uspekhi Fizicheskih Nauk 148, no. 04 (April 1986): 561–602. http://dx.doi.org/10.3367/ufnr.0148.198604a.0561.

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22

Taylor, Ian. "Primordial magnetism." New Scientist 250, no. 3340 (June 2021): 36–40. http://dx.doi.org/10.1016/s0262-4079(21)01108-8.

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23

Dinsdale, Paul. "American magnetism." Nursing Standard 14, no. 40 (June 21, 2000): 12. http://dx.doi.org/10.7748/ns.14.40.12.s30.

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24

Bramwell, S. T. "24 Magnetism." Annual Reports Section "A" (Inorganic Chemistry) 96 (2000): 505–22. http://dx.doi.org/10.1039/b004636l.

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25

Wills, Andrew S. "25 Magnetism." Annu. Rep. Prog. Chem., Sect. A: Inorg. Chem. 100 (2004): 509–23. http://dx.doi.org/10.1039/b312104f.

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26

Golubov, Alexander A., and Mikhail Yu Kupriyanov. "Controlling magnetism." Nature Materials 16, no. 2 (January 25, 2017): 156–57. http://dx.doi.org/10.1038/nmat4847.

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27

RENNESSON, Stéphane, Emmanuel GRIMAUD, and Nicolas CÉSARD. "Insect Magnetism." HAU: Journal of Ethnographic Theory 2, no. 2 (September 2012): 257–86. http://dx.doi.org/10.14318/hau2.2.014.

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28

Mestel, Leon. "Cosmic magnetism." Nature 313, no. 6003 (February 1985): 606. http://dx.doi.org/10.1038/313606b0.

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29

Bramwell, S. T. "25 Magnetism." Annu. Rep. Prog. Chem., Sect. A: Inorg. Chem. 98 (2002): 493–504. http://dx.doi.org/10.1039/b109720m.

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30

White, Hilary. "Got magnetism?" Practical Pre-School 2016, Sup185 (June 2016): 13–14. http://dx.doi.org/10.12968/prps.2016.sup185.13.

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31

Bramwell, S. T. "24 Magnetism." Annu. Rep. Prog. Chem., Sect. A: Inorg. Chem. 99 (2003): 467–75. http://dx.doi.org/10.1039/b211478j.

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32

Rakers, L. D., and Paul A. Beck. "Magnetism inAu82.5Fe17.5." Physical Review B 36, no. 16 (December 1, 1987): 8622–28. http://dx.doi.org/10.1103/physrevb.36.8622.

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33

Roberts, Steve. "Animal magnetism." Physics World 29, no. 2 (February 2016): 46–47. http://dx.doi.org/10.1088/2058-7058/29/2/38.

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34

Verberck, Bart. "Edgy magnetism." Nature Physics 10, no. 12 (November 28, 2014): 899. http://dx.doi.org/10.1038/nphys3188.

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35

Levi, Federico. "Dialectic magnetism." Nature Physics 13, no. 7 (July 2017): 623. http://dx.doi.org/10.1038/nphys4209.

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36

Cantarow, Ellen, and Doris Lessing. "Animal Magnetism." Women's Review of Books 9, no. 3 (December 1991): 22. http://dx.doi.org/10.2307/4021100.

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37

Collins, Gareth S. "Moonstruck Magnetism." Science 335, no. 6073 (March 8, 2012): 1176–77. http://dx.doi.org/10.1126/science.1217681.

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38

Koestner, Amy. "Trauma Magnetism." Journal of Trauma Nursing 15, no. 2 (April 2008): 29–30. http://dx.doi.org/10.1097/01.jtn.0000327321.52782.94.

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39

Kovalenko, V. F., and É. L. Nagaev. "Photoinduced magnetism." Soviet Physics Uspekhi 29, no. 4 (April 30, 1986): 297–321. http://dx.doi.org/10.1070/pu1986v029n04abeh003305.

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40

Sui, Y. C., R. Skomski, K. D. Sorge, and D. J. Sellmyer. "Nanotube magnetism." Applied Physics Letters 84, no. 9 (March 2004): 1525–27. http://dx.doi.org/10.1063/1.1655692.

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41

Stajic, J. "Frustrated Magnetism." Science 343, no. 6178 (March 27, 2014): 1405. http://dx.doi.org/10.1126/science.343.6178.1405-c.

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42

Roos, Christian. "Simulating magnetism." Nature 484, no. 7395 (April 2012): 461–62. http://dx.doi.org/10.1038/484461a.

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43

Coey, J. M. D. "Permanent magnetism." Solid State Communications 102, no. 2-3 (April 1997): 101–5. http://dx.doi.org/10.1016/s0038-1098(96)00712-0.

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44

Heller, Friedrich, and Michael E. Evans. "Loess magnetism." Reviews of Geophysics 33, no. 2 (1995): 211. http://dx.doi.org/10.1029/95rg00579.

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45

Nicholls, Henry. "Animal magnetism." New Scientist 232, no. 3104-3106 (December 2016): 44–46. http://dx.doi.org/10.1016/s0262-4079(16)32339-9.

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46

Cobb, Matthew. "Animal magnetism." New Scientist 235, no. 3137 (August 2017): 46. http://dx.doi.org/10.1016/s0262-4079(17)31523-3.

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47

Lascu, Ioan, and Joshua M. Feinberg. "Speleothem magnetism." Quaternary Science Reviews 30, no. 23-24 (November 2011): 3306–20. http://dx.doi.org/10.1016/j.quascirev.2011.08.004.

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48

Sigrist, Manfred. "Mesoscopic magnetism." Nature 396, no. 6707 (November 1998): 110–11. http://dx.doi.org/10.1038/24033.

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49

Schwarz, Wolfgang. "Against Magnetism." Australasian Journal of Philosophy 92, no. 1 (March 13, 2013): 17–36. http://dx.doi.org/10.1080/00048402.2013.765900.

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50

Rietman, Edward A. "Molecular magnetism." Materials Research Bulletin 30, no. 1 (January 1995): 126. http://dx.doi.org/10.1016/0025-5408(95)80007-7.

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