Theoretical prediction of materials to preserve high spin polarization against chemical disorder

被引：36

作者：

Ishida, S

Mizutani, S

Fujii, S

Asano, S ^{[1
]}

机构：

[1] Kagoshima Univ, Fac Sci, Dept Phys, Kagoshima 8900065, Japan

[2] Kagoshima Univ, Grad Sch Sci & Engn, Kagoshima 8900065, Japan

[3] Univ Tokyo, Coll Arts & Sci, Inst Phys, Tokyo 1530041, Japan

来源：

MATERIALS TRANSACTIONS | 2006年 / 47卷 / 01期

关键词：

half-metal; spin polarization; electronic structure; chemical disorder; Heusler alloy; magnetic state;

D O I：

10.2320/matertrans.47.31

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Materials with high spin polarization at the Fermi energy (E-F.) are searched by the systematic band Calculation For Heusler alloys X(2)YZ. It is shown that materials with high density-of-state (DOS) for the majority-spin state at the E-F tend to maintain high spin polarization against chemical disorder. Such materials are predicted, using the characteristics of DOS of Heusler alloys. As a candidates. X-2(CrxMn1-x)Z will be proposed, where X is combination between transition elements including at least one of Fe, Ru and Os, and Z is combination among IIIb, IVb and Vb elements.

引用

页码：31 / 37

页数：7

共 14 条

[1] ANDERSEN OK, 1985, P INT SCH PHYS, V89, P59
[2] NEW CLASS OF MATERIALS - HALF-METALLIC FERROMAGNETS
DEGROOT, RA
MUELLER, FM
VANENGEN, PG
BUSCHOW, KHJ
[J]. PHYSICAL REVIEW LETTERS, 1983, 50 (25) : 2024 - 2027
[3] Surface properties of the half- and full-Heusler alloys
Galanakis, I
[J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 2002, 14 (25) : 6329 - 6340
[4] Large tunneling magnetoresistance at room temperature using a Heusler alloy with the B2 structure
Inomata, K
Okamura, S
Goto, R
Tezuka, N
[J]. JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 2003, 42 (4B): : L419 - L422
[5] Theoretical predict of half-metals in Co-Cr-Fe-Al alloys
Ishida, S
Kawakami, S
Asano, S
[J]. MATERIALS TRANSACTIONS, 2004, 45 (04) : 1065 - 1069
[6] SEARCH FOR HALF-METALLIC COMPOUNDS IN CO(2)MNZ (Z=IIIB, IVB, VB ELEMENT)
ISHIDA, S
FUJII, S
KASHIWAGI, S
ASANO, S
[J]. JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1995, 64 (06) : 2152 - 2157
[7] ISHIDA S, 2003, ADV CONDENSED MATTER, P149
[8] TUNNELING BETWEEN FERROMAGNETIC-FILMS
JULLIERE, M
[J]. PHYSICS LETTERS A, 1975, 54 (03) : 225 - 226
[9] Atomic disorder effects on half-metallicity of the full-Heusler alloys Co2(Cr1-xFex)Al:: A first-principles study -: art. no. 144413
Miura, Y
Nagao, K
Shirai, M
[J]. PHYSICAL REVIEW B, 2004, 69 (14) : 144413 - 1
[10] Moruzzi V., 1978, CALCULATED ELECT PRO, P1

← 1 2 →