FIELD-DEPENDENCE OF THE MAGNETIC-SUSCEPTIBILITY OF AN FE/CR(211) SUPERLATTICE - EFFECT OF DISCRETENESS AND CHAOS

被引：21

作者：

TRALLORI, L

POLITI, P

RETTORI, A

PINI, MG

VILLAIN, J

机构：

[1] IST NAZL FIS NUCL, I-50125 FLORENCE, ITALY

[2] CNR, IST ELETTR QUANTIST, I-50127 FLORENCE, ITALY

[3] DEPT RECH FONDAMENTALE MAT CONDENSEE, F-38054 GRENOBLE 9, FRANCE

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1995年 / 7卷 / 33期

关键词：

D O I：

10.1088/0953-8984/7/33/002

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Recent experimental measurements on Fe/Cr(211) superlattices (Wang R W et al 1994 Phys. Rev. Lett. 72 920) show several peaks in the field dependence of magnetic susceptibility. We show that the presence of these peaks is due to the chaotic nature of the two-dimensional area-preserving map by which we determine the equilibrium configuration of the system. We find a large number of metastable states and that the ground state changes abruptly with increasing field, showing the fundamental role played by the discreteness of the lattice.

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页码：L451 / L456

页数：6

相关论文

共 8 条

[1] STATISTICAL MECHANICS + FIELD-INDUCED PHASE TRANSITIONS OF HEISENBERG ANTIFERROMAGNET [J].

ANDERSON, FB ;

CALLEN, HB .

PHYSICAL REVIEW A-GENERAL PHYSICS, 1964, 136 (4A) :1068-&

[2] GIANT MAGNETORESISTANCE OF (001)FE/(001) CR MAGNETIC SUPERLATTICES [J].

BAIBICH, MN ;

BROTO, JM ;

FERT, A ;

VANDAU, FN ;

PETROFF, F ;

EITENNE, P ;

CREUZET, G ;

FRIEDERICH, A ;

CHAZELAS, J .

PHYSICAL REVIEW LETTERS, 1988, 61 (21) :2472-2475

[3] PHASE-DIAGRAM OF THIN ANTIFERROMAGNETIC FILMS IN STRONG MAGNETIC-FIELDS [J].

CARRICO, AS ;

CAMLEY, RE ;

STAMPS, RL .

PHYSICAL REVIEW B, 1994, 50 (18) :13453-13460

[4] OSCILLATORY INTERLAYER COUPLING AND GIANT MAGNETORESISTANCE IN EPITAXIAL FE/CR(211) AND (100) SUPERLATTICES [J].

FULLERTON, EE ;

CONOVER, MJ ;

MATTSON, JE ;

SOWERS, CH ;

BADER, SD .

PHYSICAL REVIEW B, 1993, 48 (21) :15755-15763

[5] OSCILLATIONS IN EXCHANGE COUPLING AND MAGNETORESISTANCE IN METALLIC SUPERLATTICE STRUCTURES - CO/RU, CO/CR, AND FE/CR [J].

PARKIN, SSP ;

MORE, N ;

ROCHE, KP .

PHYSICAL REVIEW LETTERS, 1990, 64 (19) :2304-2307

[6] FIELD AND SURFACE EFFECTS ON THE GROUND-STATE OF ANTIFERROMAGNETIC SYSTEMS [J].

TRALLORI, L ;

POLITI, P ;

RETTORI, A ;

PINI, MG ;

VILLAIN, J .

PHYSICAL REVIEW LETTERS, 1994, 72 (12) :1925-1928

[7] SURFACE SPIN-FLOP TRANSITION IN FE/CR(211) SUPERLATTICES - EXPERIMENT AND THEORY [J].

WANG, RW ;

MILLS, DL ;

FULLERTON, EE ;

MATTSON, JE ;

BADER, SD .

PHYSICAL REVIEW LETTERS, 1994, 72 (06) :920-923

[8] MAGNETIC-PROPERTIES OF FINITE ANTIFERROMAGNETIC SUPERLATTICES - STATICS, DYNAMICS, AND THE SURFACE SPIN-FLOP PHASE [J].

WANG, RW ;

MILLS, DL .

PHYSICAL REVIEW B, 1994, 50 (06) :3931-3941