Effect of Crystal Field on the Electronic Structure of the Two-Band Hubbard Model with Spin Crossover

Описание

Тип публикации: статья из журнала

Год издания: 2020

Идентификатор DOI: 10.1134/S106377612004007X

Аннотация: We consider the change in the electronic structure of the two-band Hubbard model in the regime of strong electron correlations with spin crossover upon the passage through the crossover point depending on the crystal field growth. An abrupt semimetal-insulator-semimetal transition is detected during the passage through the spin croПоказать полностьюssover point in the absence of the spin-orbit interaction, which is accompanied by a jumpwise redistribution of the partial spectral weight between the poles of the Green function of Fermi quasiparticles. The role of the spin-orbit interaction and the change in the surface topology of surface of one-particle Green function zeros are considered.

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Издание

Журнал: JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS

Выпуск журнала: Vol. 130, Is. 5

Номера страниц: 699-710

ISSN журнала: 10637761

Место издания: MOSCOW

Издатель: PLEIADES PUBLISHING INC

Авторы

  • Orlov Yu. S. (Russian Acad Sci, Siberian Branch, Fed Res Ctr, Kirensky Inst Phys,Krasnoyarsk Sci Ctr, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Krasnoyarsk 660041, Russia)
  • Nikolaev S.V. (Russian Acad Sci, Siberian Branch, Fed Res Ctr, Kirensky Inst Phys,Krasnoyarsk Sci Ctr, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Krasnoyarsk 660041, Russia)
  • Dudnikov V.A. (Russian Acad Sci, Siberian Branch, Fed Res Ctr, Kirensky Inst Phys,Krasnoyarsk Sci Ctr, Krasnoyarsk 660036, Russia)

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