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.

Авторы

  • 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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