Excitonic Order in Strongly Correlated Systems with the Spin Crossover

被引：1

作者：

Orlov, Yu. S. ^{[1
,2
]}

Nikolaev, S. V. ^{[1
,2
]}

Ovchinnikov, S. G. ^{[1
,2
]}

机构：

[1] Siberian Fed Univ, Krasnoyarsk 660041, Russia

[2] Russian Acad Sci, Kirensky Inst Phys, Fed Res Ctr KSC, Siberian Branch, Krasnoyarsk 660036, Russia

来源：

JETP LETTERS | 2023年 / 117卷 / 09期

基金：

俄罗斯科学基金会;

关键词：

TRANSITION; LACOO3;

D O I：

10.1134/S0021364023600878

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Features of the formation of the magnetic structure and the exciton Bose-Einstein condensate phase of magnetic excitons in strongly correlated systems near the spin crossover have been considered with the effective Hamiltonian obtained from the two-band Hubbard-Kanamori model. The coexistence of antiferromagnetism and exciton condensate, as well as the appearance of the long-range excitonic antiferromagnetic order even in the absence of the interatomic exchange interaction, has been revealed. The role of the electron-phonon coupling has been considered.

引用

页码：708 / 715

页数：8

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