Тип публикации: статья из журнала

Год издания: 2021

Идентификатор DOI: 10.1103/PhysRevB.104.195103

Аннотация: Formation of the magnetic structure and exciton condensate of local magnetic excitons in strongly correlated systems near the spin crossover under high pressure is considered in terms of the effective Hamiltonian obtained from a two-band Hubbard model in the regime of strong electron correlations. The coexistence of the long-range Показать полностьюantiferromagnetic order and exciton condensate and the occurrence of the magnetization caused by the condensation of local magnetic excitons are demonstrated. Transformation of the electronic structure of the antiferromagnetic high-spin insulator into the paramagnetic two-band correlated metal via a narrow-gap antiferromagnetic excitonic semiconductor is obtained. © 2021 American Physical Society.

Журнал: Physical Review B

Выпуск журнала: Vol. 104, Is. 19

Номера страниц: 195103

ISSN журнала: 24699950

Издатель: American Physical Society

• Orlov Yu. S. (Siberian Fed Univ, Inst Engn & Radio Elect, Krasnoyarsk 660041; RussiaRAS, Kirensky Inst Phys, SB, Fed Res Ctr KSC, Krasnoyarsk 660036, Russia)
• Nikolaev S.V. (Siberian Fed Univ, Inst Engn & Radio Elect, Krasnoyarsk 660041; RussiaRAS, Kirensky Inst Phys, SB, Fed Res Ctr KSC, Krasnoyarsk 660036, Russia)
• Dudnikov V.A. (Siberian Fed Univ, Inst Engn & Radio Elect, Krasnoyarsk 660041; RussiaRAS, Kirensky Inst Phys, SB, Fed Res Ctr KSC, Krasnoyarsk 660036, Russia)
• Ovchinnikov S.G. (Siberian Fed Univ, Inst Engn & Radio Elect, Krasnoyarsk 660041; RussiaRAS, Kirensky Inst Phys, SB, Fed Res Ctr KSC, Krasnoyarsk 660036, Russia)

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