ON THE MECHANISM OF THE INTERSUBLATTICE EXCHANGE COUPLINGS IN RARE-EARTH TRANSITION-METAL INTERMETALLICS

被引：7

作者：

LIEBS, M ^{[1
]}

FAHNLE, M ^{[1
]}

机构：

[1] MAX PLANCK INST MET RES,INST PHYS,HEISENBERGSTR 1,D-70569 STUTTGART,GERMANY

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1993年 / 128卷 / 1-2期

关键词：

D O I：

10.1016/0304-8853(93)90847-U

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The mechanism of the intersublattice exchange coupling in rare-earth-transition-metal intermetallics is elucidated within the framework of the local spin density approximation. It is demonstrated that the model of Brooks et al. is essentially correct, which relates this coupling to the intra-atomic J4f-5d exchange. The 3d states determine the properties of the 5d states via hybridization and have therefore an influence on J4f-5d, but there is no major contribution to the intersublattice coupling which could be related to a 3d-5d exchange interaction, in contrast to the model of Li et al.

引用

页码：L8 / L10

页数：3

共 8 条

[1] 3D-5D BAND MAGNETISM IN RARE-EARTH TRANSITION-METAL INTERMETALLICS - LUFE2 [J].

BROOKS, MSS ;

ERIKSSON, O ;

JOHANSSON, B .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1989, 1 (34) :5861-5874

[2] ORIGIN AND ABINITIO EVALUATION OF MAGNETIC-INTERACTIONS IN RARE-EARTH INTERMETALLICS [J].

BROOKS, MSS ;

NORDSTROM, L ;

JOHANSSON, B .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1991, 3 (19) :3393-3396

[3]

CAMPBELLIA, 1972, J PHYS F MET PHYS, V2, pL47

[4] AB-INITIO ELECTRON THEORY FOR HARD-MAGNETIC RARE-EARTH-TRANSITION-METAL INTERMETALLICS [J].

FAHNLE, M ;

HUMMLER, K ;

LIEBS, M ;

BEUERLE, T .

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 1993, 57 (01) :67-76

[5] R-T AND R-R EXCHANGE INTERACTIONS IN THE RARE-EARTH (R)-TRANSITION-METAL (T) INTERMETALLICS - AN EVALUATION FROM RELATIVISTIC ATOMIC CALCULATIONS [J].

LI, HS ;

LI, YP ;

COEY, JMD .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1991, 3 (38) :7277-7290

[6] THEORETICAL EVALUATION OF R-T AND R-R EXCHANGE COEFFICIENTS IN RARE-EARTH (R)-TRANSITION-METAL (T) INTERMETALLIC COMPOUNDS [J].

LI, HS ;

LI, YP ;

COEY, JMD .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1992, 104 :1444-1446

[7] AB-INITIO CALCULATION OF THE EFFECTIVE EXCHANGE COUPLINGS IN RARE-EARTH TRANSITION-METAL INTERMETALLICS [J].

LIEBS, M ;

HUMMLER, K ;

FAHNLE, M .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1993, 124 (03) :239-242

[8]

LOEWENHAUPT M, COMMUNICATION

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