g-on mean field theory of the t-J model

被引：9

作者：

Basco, F ^{[1
]}

Kohno, H ^{[1
]}

Fukuyama, H ^{[1
]}

Baskaran, G ^{[1
]}

机构：

[1] INST MATH SCI, MADRAS 600113, TAMIL NADU, INDIA

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1996年 / 65卷 / 03期

关键词：

t-J model; gauge-field fluctuation; exclusion statistics; g-on;

D O I：

10.1143/JPSJ.65.687

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A new possible treatment of large-amplitude gauge-field fluctuations around the slave-boson mean-field theory for the t-J model has been proposed by attaching gauge flux to spinons and holons and then by treating them as g-ons which respect the time-reversal symmetry. Using the thermodynamic distribution function of g-ons, the optimum exclusion statistics has been determined in the plane of doping rate and temperature. The results indicate that slave fermions are favored at low doping while slave bosons at high doping with intermediate statistics in between.

引用

页码：687 / 690

页数：4

共 38 条

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