Pressure-induced metallization of the Mott insulator FeXMn1−XS system

Тип публикации: статья из журнала

Год издания: 2018

Идентификатор DOI: 10.1016/j.jmmm.2018.05.056

Ключевые слова: Correlated electron systems, High pressure and low temperature, Metal-insulator transitions

Аннотация: Electrical resistivity of the FeXMn1−XS (0 ≤ X ≤ 0.29) single crystals based on the Mott insulator α-MnS is experimentally studied in the temperature range of 2–300 K at ambient pressure (P = 0) and at high (up to 30 GPa) hydrostatic pressures for x = 0.12. The electron subsystem of FeXMn1−XS undergoes insulator-to-metal transitions indicated by a resistivity drop by a factor of 106 with an increase in the chemical pressure (X) due to the cation substitution under ambient conditions and at the hydrostatic pressure (PC = 27 ± 5 GPa) for x = 0.12. The results obtained show that the hydrostatic pressure - and cation-substitution induced insulator-to-metal transitions in the α-MnS-based Mott compounds have similar mechanisms. The dependence of the critical hydrostatic pressure PC on the Fe content in FeXMn1−XS is established. © 2018 Elsevier B.V.

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Издание

Журнал: Journal of Magnetism and Magnetic Materials

Выпуск журнала: Vol. 465

Номера страниц: 775-779

ISSN журнала: 03048853

Издатель: Elsevier B.V.

Персоны

Abramova G.M. (Russian Acad Sci, Fed Res Ctr KSC, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk 660036, Russia)
Hanzawa A. (Osaka Univ, Ctr Sci & Technol Extreme Condit, Grad Sch Engn Sci, KYOKUGEN, Toyonaka, Osaka 5608531, Japan)
Kagayama T. (Osaka Univ, Ctr Sci & Technol Extreme Condit, Grad Sch Engn Sci, KYOKUGEN, Toyonaka, Osaka 5608531, Japan)
Mita Y. (Osaka Univ, Ctr Sci & Technol Extreme Condit, Grad Sch Engn Sci, KYOKUGEN, Toyonaka, Osaka 5608531, Japan)
Eremin E.V (Russian Acad Sci, Fed Res Ctr KSC, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk 660036, Russia)
Zeer G.M. (Siberian Fed Univ, 79 Svobodny Pr, Krasnoyarsk 660041, Russia)
Zharkov S.M. (Russian Acad Sci, Fed Res Ctr KSC, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk 660036, Russia; Siberian Fed Univ, 79 Svobodny Pr, Krasnoyarsk 660041, Russia)
Ovchinnikov S.G. (Russian Acad Sci, Fed Res Ctr KSC, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk 660036, Russia; Siberian Fed Univ, 79 Svobodny Pr, Krasnoyarsk 660041, Russia)

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