RANDOM ANISOTROPY IN THE CO2TIO4 COMPOUND

被引：11

作者：

GAVOILLE, G

HUBSCH, J

KOUTANI, S

机构：

[1] Laboratoire de Minéralogie-Cristallographie et Physique Infrarouge, URA 809 au CNRS, Faculté des Sciences, 54506 Vandoeuvre les Nancy Cedex

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1991年 / 102卷 / 03期

关键词：

D O I：

10.1016/0304-8853(91)90140-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

From previous magnetization measurements the assumed paramagnetic to ferrimagnetic transition temperature of Co2TiO4 is 55 K while the specific heat shows an anomaly at 49 K. New magnetization measurements show a magnetic transition of the random anisotropy kind at 48 K. The random anisotropy is assumed to arise from random lattice distortions screening large electric charge fluctuations due to the large charge difference between Co2+ and Ti4+.

引用

页码：283 / 286

页数：4

共 15 条

[1]

AHARONY A, 1980, PHYS REV LETT, V45, P1583, DOI 10.1103/PhysRevLett.45.1583

[2] NATURE OF THE GRIFFITHS PHASE [J].

BRAY, AJ .

PHYSICAL REVIEW LETTERS, 1987, 59 (05) :586-589

[3] UPPER AND LOWER BOUNDS ON DYNAMIC CORRELATIONS IN THE GRIFFITHS PHASE [J].

BRAY, AJ .

JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 1989, 22 (03) :L81-L85

[4] DYNAMICS OF RANDOM ISING-FERROMAGNETS IN THE GRIFFITHS PHASE [J].

BRAY, AJ ;

RODGERS, GJ .

PHYSICAL REVIEW B, 1988, 38 (13) :9252-9254

[5] DYNAMICS OF DILUTE MAGNETS ABOVE TC [J].

BRAY, AJ .

PHYSICAL REVIEW LETTERS, 1988, 60 (08) :720-723

[6] MAGNETIC-PROPERTIES OF SPINEL SERIES CO2-YZNYTIO4 (O LESS-THAN-OR-EQUAL-TO Y LESS-THAN-OR-EQUAL-TO 1) [J].

DESTROOPER, K ;

ROBBRECHT, G .

PHYSICA B & C, 1977, 86 (JAN-M) :934-936

[7] SEMI-SPIN-GLASS BEHAVIOR IN THE CO2TIO4 COMPOUND [J].

HUBSCH, J ;

GAVOILLE, G .

PHYSICAL REVIEW B, 1982, 26 (07) :3815-3823

[8] SPECIFIC HEAT OF CO2TIO4 AND ITS ANOMALY ASSOCIATED WITH MAGNETIC TRANSITION [J].

OGAWA, S ;

WAKI, S .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1965, 20 (04) :540-&

[9]

SAKAMOTO N, 1962, J PHYS SOC JPN, V17, P276

[10] SELECTIVE SUB-LATTICE DILUTION IN ORDERED MAGNETIC COMPOUNDS - A NEW KIND OF PERCOLATION PROBLEM [J].

SCHOLL, F ;

BINDER, K .

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1980, 39 (03) :239-247

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