SPIRAL PHASE IN A DOPED ANTIFERROMAGNET

被引：15

作者：

EDER, R

机构：

[1] Max-Planck Institut für Festkörperforschung

来源：

PHYSICAL REVIEW B | 1991年 / 43卷 / 13期

关键词：

D O I：

10.1103/PhysRevB.43.10706

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The coherent motion of a hole in an antiferromagnetic described by the t-J model is discussed assuming that the spins show a spiral correlation function. The results are obtained from an ansatz for the wave function and no kind of mean-field approximation has to be made. When the resulting band is filled up for a low concentration of holes the total energy of the system can be estimated and it is found that for any finite concentration of holes a state with spiral spin configuration is energetically favorable compared to a state with Neel order.

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页码：10706 / 10714

页数：9

相关论文

共 30 条

[11] DYNAMICS OF HOLES IN ANTIFERROMAGNETIC STATE [J].

INOUE, J ;

MAEKAWA, S .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1990, 59 (06) :2110-2123

[12] MEAN-FIELD THEORY FOR THE T-J MODEL [J].

JAYAPRAKASH, C ;

KRISHNAMURTHY, HR ;

SARKER, S .

PHYSICAL REVIEW B, 1989, 40 (04) :2610-2614

[13] MEAN-FIELD THEORY OF THE SPIRAL PHASES OF A DOPED ANTIFERROMAGNET [J].

KANE, CL ;

LEE, PA ;

NG, TK ;

CHAKRABORTY, B ;

READ, N .

PHYSICAL REVIEW B, 1990, 41 (04) :2653-2656

[14] MOTION OF A SINGLE HOLE IN A QUANTUM ANTIFERROMAGNET [J].

KANE, CL ;

LEE, PA ;

READ, N .

PHYSICAL REVIEW B, 1989, 39 (10) :6880-6897

[15] LOW-LYING DISORDERED STATES WHEN GROUND-STATE LONG-RANGE ORDER EXISTS - LARGE-AMPLITUDE SPIN-WAVES [J].

KAPLAN, TA .

PHYSICAL REVIEW B, 1990, 41 (10) :6882-6888

[16]

MAEKAWA S, 1989, STRONG CORRELATION S

[17] LONG-RANGE CORRELATIONS IN THE TWO-DIMENSIONAL SPIN-1/2 ANTIFERROMAGNETIC HEISENBERG-MODEL - A QUANTUM MONTE-CARLO STUDY [J].

MANOUSAKIS, E ;

SALVADOR, R .

PHYSICAL REVIEW LETTERS, 1988, 60 (09) :840-843

[18] INCOMMENSURATE CORRELATIONS IN THE T-J AND FRUSTRATED SPIN-1/2 HEISENBERG MODELS [J].

MOREO, A ;

DAGOTTO, E ;

JOLICOEUR, T ;

RIERA, J .

PHYSICAL REVIEW B, 1990, 42 (10) :6283-6293

[19]

NAGAEV EL, 1970, ZH EKSP TEOR FIZ, V31, P682

[20] MONTE-CARLO SIMULATIONS OF THE SPIN-1/2 HEISENBERG-ANTIFERROMAGNET ON A SQUARE LATTICE [J].

REGER, JD ;

YOUNG, AP .

PHYSICAL REVIEW B, 1988, 37 (10) :5978-5981