Zero-temperature TAP equations for the Ghatak-Sherrington model

被引：8

作者：

da Costa, FA

de Araújo, JM

机构：

[1] Univ Fed Rio Grande Norte, Dept Fis Teor & Expt, BR-59072970 Natal, RN, Brazil

[2] Univ Estadual Rio Grande Norte, Dept Ciencias Nat, BR-59610210 Mossoro, RN, Brazil

来源：

EUROPEAN PHYSICAL JOURNAL B | 2000年 / 15卷 / 02期

关键词：

D O I：

10.1007/s100510051130

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The zero-temperature TAP equations for the spin-1 Ghatak-Sherrington model are investigated. The spin-glass energy density (ground state) is determined as a function of the anisotropy crystal field D for a large number of spins. This allows us to locate a first-order transition between the spin-glass and paramagnetic phases within a good accuracy. The total number of solutions is also determined as a function of D.

引用

页码：313 / 316

页数：4

共 26 条

[1]

Arenzon JJ, 1996, J PHYS I, V6, P1143, DOI 10.1051/jp1:1996120

[2] EVIDENCE FOR MASSLESS MODES IN THE SOLVABLE MODEL OF A SPIN GLASS [J].

BRAY, AJ ;

MOORE, MA .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1979, 12 (11) :L441-L448

[3] METASTABLE STATES IN SPIN-GLASSES [J].

BRAY, AJ ;

MOORE, MA .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1980, 13 (19) :L469-L476

[4] 1ST-ORDER TRANSITION IN A SPIN-GLASS MODEL [J].

DACOSTA, FA ;

YOKOI, CSO ;

SALINAS, SRA .

JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 1994, 27 (10) :3365-3372

[5] WHITE AND WEIGHTED AVERAGES OVER SOLUTIONS OF PALMER,THOULESS,ANDERSON EQUATIONS FOR THE KIRKPATRICK,SHERRINGTON SPIN-GLASS [J].

DEDOMINICIS, C ;

GABAY, M ;

GAREL, T ;

ORLAND, H .

JOURNAL DE PHYSIQUE, 1980, 41 (09) :923-930

[6] Replica symmetry breaking solution for the fermionic Ising spin-glass and the Ghatak-Sherrington model [J].

Feldmann, H ;

Oppermann, R .

JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 2000, 33 (07) :1325-1332

[7] Random magnetic interactions and spin glass order competing with superconductivity: Interference of the quantum Parisi phase [J].

Feldmann, H ;

Oppermann, R .

EUROPEAN PHYSICAL JOURNAL B, 1999, 10 (03) :429-445

[8] CRYSTAL-FIELD EFFECTS IN A GENERAL S-ISING SPIN GLASS [J].

GHATAK, SK ;

SHERRINGTON, D .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1977, 10 (16) :3149-3156

[9]

LAGE EJS, 1982, J PHYS C SOLID STATE, V15, P1187

[10] STABILITY OF A CRYSTAL-FIELD SPLIT SPIN-GLASS [J].

MOTTISHAW, PJ ;

SHERRINGTON, D .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1985, 18 (26) :5201-5213

← 1 2 3 →