Diagram Approach to the Problem of the Normal Phase Properties of the Spin-Polaron Ensemble in Cuprate Superconductors

被引：3

作者：

Val'kov, V. V. ^{[1
]}

Mitskan, V. A. ^{[1
,2
]}

Korovushkin, M. M. ^{[1
]}

Dzebisashvili, D. M. ^{[1
,2
]}

Barabanov, A. F. ^{[3
]}

机构：

[1] RAS, Fed Res Ctr KSC SB, Kirensky Inst Phys, Krasnoyarsk 660036, Russia

[2] Siberian State Univ Sci & Technol, Krasnoyarsk 660037, Russia

[3] Vereshchagin Inst High Pressure Phys, Moscow 108840, Russia

来源：

JOURNAL OF LOW TEMPERATURE PHYSICS | 2019年 / 197卷 / 1-2期

基金：

俄罗斯基础研究基金会;

关键词：

Cuprate superconductors; Unconventional superconductivity; Spin-charge correlations; ELECTRONIC-STRUCTURE; QUASI-PARTICLES; MODEL; EXCITATIONS; ANTIFERROMAGNET; WAVE;

D O I：

10.1007/s10909-019-02211-9

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Taking into account the real crystalline structure of the CuO2 plane within the spin-fermion model and using the diagram technique, the spin-polaron concept of the fermionic excitations in cuprate superconductors is implemented. It is shown that an account of the on-site scattering processes leads to considerable binding energy of the spin-polaron quasiparticles. An account of the two-site spin-fermion scattering processes results in the energy spectrum and spectral properties of the spin-polaron quasiparticles which agree well with experimental data on cuprate superconductors.

引用

页码：34 / 43

页数：10

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