DRONE-FERMIONS IN THE 2-DIMENSIONAL ANTIFERROMAGNET

被引：6

作者：

KRIVENKO, S ^{[1
]}

KHALIULLIN, G ^{[1
]}

机构：

[1] KAZAN TECH PHYS INST,KAZAN 420029,RUSSIA

来源：

PHYSICA C | 1995年 / 244卷 / 1-2期

关键词：

D O I：

10.1016/0921-4534(94)02430-8

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Two different representations of spins - via the conventional fermions, or via the Mattis drone-fermions - are compared considering the planar antiferromagnetic Heisenberg model as an example. Mean-field spin correlation functions calculated for the uniform and flux RVB states show that the drone-fermion approach has an advantage in giving the lower energy and the enhanced AF correlations, because of the absence of unphysical spinless states in this representation.

引用

页码：83 / 86

页数：4

共 11 条

[1]

Abrikosov A. A., 1965, PHYS PHYS FIZ, V2, P5

[2] LARGE-N LIMIT OF THE HEISENBERG-HUBBARD MODEL - IMPLICATIONS FOR HIGH-TC SUPERCONDUCTORS [J].