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Bibliographies thématiques / Ybb12

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Articles de revues

Littérature scientifique sur le sujet « Ybb12 »

Auteur : Grafiati

Publié le 8 novembre 2023

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Articles de revues sur le sujet "Ybb12"

1

Корень, Елена. "ХРУПКОСТЬ КУБИЧЕСКИХ ДОДЕКАБОРИДОВ РЕДКОЗЕМЕЛЬНЫХ МЕТАЛЛОВ". Modern engineering and innovative technologies, № 04-01 (30 червня 2017): 102–5. http://dx.doi.org/10.30890/2567-5273.2018-04-01-023.

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В работе рассматривается исследование хрупкости додекаборидов YB12, TbB12, DyB12, HoB12, ErB12, TmB12, YbB12, LuB12, ZrB12 на образцах, полученных методами порошковой металлургии, по микротвердости, определяемой на приборе ПМТ-3. Полученные результаты объ

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Xiang, Z., Y. Kasahara, T. Asaba, et al. "Quantum oscillations of electrical resistivity in an insulator." Science 362, no. 6410 (2018): 65–69. http://dx.doi.org/10.1126/science.aap9607.

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In metals, orbital motions of conduction electrons on the Fermi surface are quantized in magnetic fields, which is manifested by quantum oscillations in electrical resistivity. This Landau quantization is generally absent in insulators. Here, we report a notable exception in an insulator—ytterbium dodecaboride (YbB12). The resistivity of YbB12, which is of a much larger magnitude than the resistivity in metals, exhibits distinct quantum oscillations. These unconventional oscillations arise from the insulating bulk, even though the temperature dependence of the oscillation amplitude follows the conventional Fermi liquid theory of metals with a large effective mass. Quantum oscillations in the magnetic torque are also observed, albeit with a lighter effective mass.

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Kasaya, M., F. Iga, M. Takigawa, and T. Kasuya. "Mixed valence properties of YbB12." Journal of Magnetism and Magnetic Materials 47-48 (February 1985): 429–35. http://dx.doi.org/10.1016/0304-8853(85)90458-5.

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Bolotina, Nadezhda, Olga Khrykina, Andrey Azarevich, Sergey Gavrilkin, and Nikolay Sluchanko. "Fine details of crystal structure and atomic vibrations in YbB12 with a metal–insulator transition." Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials 76, no. 6 (2020): 1117–27. http://dx.doi.org/10.1107/s2052520620013566.

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The crystal structure of single-crystal Kondo insulator YbB12 was studied at nine temperatures in the range 85–293 K based on X-ray diffraction data. Very weak Jahn–Teller distortions of the cubic lattice were detected at all temperatures, but did not require a revision of the structural model. Heat capacity and electrical conductivity of YbB12 single crystals were studied in the temperature range 1.9–300 K. It is found that both the structural parameters and the indicated physical properties have some specific features in the temperature range 120–160 K. The unit cell of YbB12 contracts when cooled below 160 K and expands at around 120 K. The temperature dependences of the equivalent atomic displacement parameters U eq(T) are no longer monotonic around 140 K and should be modeled by two Einstein curves for Yb and two Debye curves for boron atoms above and below this temperature. As follows from the temperature behavior of the specific heat, coupled oscillations of Yb ions in a double-well potential lead to the appearance of a charge gap in the density of states and gradual deterioration in conductive properties of the crystal below 150 K. This metal–insulator phase transition is accompanied by a kink in the U eq(T) curves and changes in the unit-cell values.

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Baťková, M., I. Baťko, E. Konovalova, and N. Shitsevalova. "Tunneling Spectroscopy Studies of SmB6and YbB12." Acta Physica Polonica A 113, no. 1 (2008): 255–58. http://dx.doi.org/10.12693/aphyspola.113.255.

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Yanase, Akira, and Hisatomo Harima. "Band Calculations on YbB12, SmB6and CeNiSn." Progress of Theoretical Physics Supplement 108 (1992): 19–25. http://dx.doi.org/10.1143/ptps.108.19.

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Shishiuchi, Naohito, Yoshitomo Kato, Oleg M. Vyaselev, et al. "Defect-induced magnetic fluctuations in YbB12." Journal of Physics and Chemistry of Solids 63, no. 6-8 (2002): 1231–34. http://dx.doi.org/10.1016/s0022-3697(02)00121-x.

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Barabanov, A. F., and L. A. Maksimov. "Spin excitations in Kondo insulator YbB12." Physics Letters A 373, no. 20 (2009): 1787–90. http://dx.doi.org/10.1016/j.physleta.2009.02.076.

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Susaki, T., Y. Takeda, M. Arita, et al. "Photoemission study of kondo insulator YbB12." Physica B: Condensed Matter 281-282 (June 2000): 282–83. http://dx.doi.org/10.1016/s0921-4526(99)00854-6.

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Nemkovski, K. S., P. A. Alekseev, J. M. Mignot, and N. N. Tiden. "Phonons in the Kondo insulator YbB12." physica status solidi (c) 1, no. 11 (2004): 3093–96. http://dx.doi.org/10.1002/pssc.200405305.

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