ELECTRONIC SPECIFIC-HEAT OF MN2SB AND MN1.9CR0.1SB

被引：6

作者：

BARANOV, NV ^{[1
]}

MARKIN, PE ^{[1
]}

GRATZ, E ^{[1
]}

HILSCHER, G ^{[1
]}

RESEL, R ^{[1
]}

机构：

[1] VIENNA TECH UNIV,INST EXPTL PHYS,A-1040 VIENNA,AUSTRIA

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1992年 / 187卷 / 02期

关键词：

D O I：

10.1016/0925-8388(92)90431-8

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In order to investigate the difference between the electronic structures of the ferrimagnetic and antiferromagnetic states in Mn2-xCrxSb compounds the specific heat has been measured for Mn2Sb and Mn1.9Cr0.1Sb which have ferrimagnetic (FR) and antiferromagnetic (AF) structures respectively at low temperatures. This revealed a great difference between the electronic specific heat coefficients gamma for these two compounds: gamma(FR) = 1.4 mJ mol-1 K-2 and gamma(AF)= 20.9 mJ mol-1 K-2. This difference allows us to suggest that the AF-FR magnetic transition in Mn2-xCrxSb is caused by the peculiarities of electronic structure and the band magnetism model is necessary to explain the magnetic properties of these compounds.

引用

页码：L7 / L10

页数：4

共 14 条

[1] MAGNETIC STRUCTURES OF CHROMIUM-MODIFIED MN2SB [J].

AUSTIN, AE ;

CLOUD, WH ;

ADELSON, E .

PHYSICAL REVIEW, 1963, 131 (04) :1511-&

[2]

Baranov N.V., 1991, FIZ MET METALLOVED, V11, P72

[3]

BARANOV NV, 1990, FIZ TVERD TELA+, V32, P2517

[4] ELECTRICAL RESISTIVITY AND HALL EFFECT OF CR-MODIFIED MN2SB [J].

BIERSTEDT, PE .

PHYSICAL REVIEW, 1963, 132 (02) :669-&

[5] NEW MODIFIED MN2SB COMPOSITIONS SHOWING EXCHANGE INVERSION [J].

BITHER, TA ;

SWOBODA, TJ ;

WALTER, PHL ;

BIERSTEDT, PE ;

CLOUD, WH .

JOURNAL OF APPLIED PHYSICS, 1962, 33 (03) :1346-&

[6] X-RAY AND MAGNETIZATION STUDIES OF CR-MODIFIED MN2SB [J].

DARNELL, FJ ;

JARRETT, HS ;

CLOUD, WH .

PHYSICAL REVIEW, 1963, 130 (02) :647-&

[7]

ELIOT RJ, 1963, P PHYS SOC LOND, V81, P48

[8] ELECTRONIC-STRUCTURES AND LOCAL MAGNETIC-MOMENTS IN FERROMAGNETIC AND ANTIFERROMAGNETIC FEXRH1-X ALLOYS [J].

HASEGAWA, H .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1987, 66 (02) :175-186

[9] MODEL OF EXCHANGE-INVERSION MAGNETIZATION [J].

KITTEL, C .

PHYSICAL REVIEW, 1960, 120 (02) :335-342

[10] UNUSUAL NATURE OF ABRUPT MAGNETIC TRANSITION IN FERH AND ITS PSEUDOBINARY VARIANTS [J].

KOUVEL, JS .

JOURNAL OF APPLIED PHYSICS, 1966, 37 (03) :1257-&

← 1 2 →