Сибирский федеральный университет

Тип публикации: статья из журнала

Год издания: 2016

Идентификатор DOI: 10.1134/S1063776116090065

Ключевые слова: Antiferromagnetism, Electronic structure, High temperature superconductors, Magnetic fields, Antiferromagnetic orderings, Cluster perturbation theories, Electron-doping, External fields, External magnetic field, Non-monotonic dependence, Short-range correlations, Spectral weight, Perturbation techniques

Аннотация: The electronic structure in the two-dimensional t-J* model with canted antiferromagnetic order in an external magnetic field has been calculated within the cluster perturbation theory. In zero external field, the evolution of the Fermi surface with n-type doping has been obtained in good agreement with experimental data on cuprate superconductors. It has been shown that the inclusion of short-range correlations can result in a nonmonotonic dependence of the spectral weight distribution at the Fermi level on the external magnetic field. In contrast to the case of electron doping, such changes in the case of hole doping can be expected at experimentally achievable fields.

Журнал: JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS

Выпуск журнала: Vol. 123, Is. 3

Номера страниц: 511-519

ISSN журнала: 10637761

Место издания: NEW YORK

Издатель: MAIK NAUKA/INTERPERIODICA/SPRINGER

• Kuz'min V.I. (Kirensky Institute of Physics,Siberian Branch,Russian Academy of Sciences)
• Nikolaev S.V. (Siberian Federal University)
• Ovchinnikov S.G. (Siberian Federal University)

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