FERRIMAGNETISM IN DILUTED MIXED ISING SPIN SYSTEMS

被引：91

作者：

BOBAK, A

JASCUR, M

机构：

[1] Department of Theoretical Physics and Geophysics, P. J. Afárik University, 041 54 Koice

来源：

PHYSICAL REVIEW B | 1995年 / 51卷 / 17期

关键词：

D O I：

10.1103/PhysRevB.51.11533

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The magnetic properties of diluted mixed Ising ferrimagnetic systems consisting of spin-1/2 and spin-1 are investigated within the framework of an effective-field theory with correlations. Particular emphasis is given to the honeycomb lattice with coordination number z=3 for which the phase diagram (transition temperature and compensation temperature) and magnetizations (total and sublattice) are obtained. We find a number of interesting phenomena in these quantities, such as the possibility of two compensation points in the total magnetization curve and magnetization curves not predicted in the Néel theory. © 1995 The American Physical Society.

引用

收藏

页码：11533 / 11537

页数：5

相关论文

共 30 条

[1]

BARBARA B, 1988, LECTURES MODERN MAGN

[2] REAL-SPACE RENORMALIZATION-GROUP INVESTIGATION OF PURE AND DISORDERED MIXED SPIN ISING-MODELS ON D-DIMENSIONAL LATTICES [J].

BENAYAD, N .

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1990, 81 (01) :99-105

[3] TWO-DIMENSIONAL MIXED SPIN ISING-MODELS WITH BOND DILUTION AND RANDOM +/--J INTERACTIONS [J].

BENAYAD, N ;

KLUMPER, A ;

ZITTARTZ, J ;

BENYOUSSEF, A .

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1989, 77 (02) :339-341

[4] REAL-SPACE RENORMALIZATION-GROUP INVESTIGATION OF THE 3-DIMENSIONAL SEMI-INFINITE MIXED SPIN ISING-MODEL [J].

BENAYAD, N ;

ZITTARTZ, J .

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1990, 81 (01) :107-112

[5] TRICRITICAL BEHAVIOR IN DILUTED MIXED SPIN-1 AND SPIN-1/2 ON SQUARE LATTICE [J].

BENYOUSSEF, A ;

ELKENZ, A ;

KANEYOSHI, T .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1994, 131 (1-2) :179-182

[6] DILUTED MIXED SPIN-1 AND SPIN-1/2 ON HONEYCOMB LATTICE [J].

BENYOUSSEF, A ;

ELKENZ, A ;

KANEYOSHI, T .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1994, 131 (1-2) :173-178

[7] A NOTE ON GREEN FUNCTIONS AND THE ISING MODEL [J].

CALLEN, HB .

PHYSICS LETTERS, 1963, 4 (03) :161-161

[8] RENORMALIZATION-GROUP TREATMENT OF THE MIXED-SPIN SYSTEM IN D-DIMENSIONAL LATTICES [J].

DERESENDE, HFV ;

BARRETO, FCS ;

PLASCAK, JA .

PHYSICA A, 1988, 149 (03) :606-612

[9] ON THE THEORY OF COOPERATIVE PHENOMENA IN CRYSTALS [J].

DOMB, C .

ADVANCES IN PHYSICS, 1960, 9 (34) :149-361

[10] CLASSICAL TREATMENT OF A HEISENBERG LINEAR-CHAIN WITH SPIN ALTERNATION - APPLICATION TO THE MNNI(EDTA).6H2O COMPLEX [J].

DRILLON, M ;

CORONADO, E ;

BELTRAN, D ;

GEORGES, R .

CHEMICAL PHYSICS, 1983, 79 (03) :449-453