Temperature and field dependent magnetic Compton scattering study of Heusler alloy Co2MnSi

被引：7

作者：

Dashora, Alpa ^{[1
]}

Ahuja, B. L. ^{[1
]}

Vinesh, A. ^{[1
]}

Lakshmi, N. ^{[1
]}

Itou, M.

Sakurai, Y.

机构：

[1] ML Sukhadia Univ, Univ Coll Sci, Dept Phys, Udaipur 313001, India

来源：

JOURNAL OF APPLIED PHYSICS | 2011年 / 110卷 / 01期

关键词：

COBALT;

D O I：

10.1063/1.3606428

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Temperature and field dependent spin polarized electron momentum distributions in ternary Heusler compound Co2MnSi have been measured using the magnetic Compton spectrometer at SPring-8, Japan. The experimental magnetic Compton profile at 10 K reconciles well with the theoretical profile computed using the spin polarized relativistic (SPR) Korringa-Kohn-Rostoker (KKR) method. The temperature and field dependent experimental magnetic profiles have been mainly analyzed to check the role of Mn 3d electrons in the formation of magnetic moments in Co2MnSi. The diffuse contribution from conduction electrons is antiferromagnetically coupled to the spin moment arising from 3d electrons of Co and Mn. The spin moments calculated using SPR-KKR calculations are in good agreement with the present measurements. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3606428]

引用

页数：5

共 20 条

[1] Properties of the quaternary half-metal-type Heusler alloy Co2Mn1-xFexSi [J].

Balke, Benjamin ;

Fecher, Gerhard H. ;

Kandpal, Hem C. ;

Felser, Claudia ;

Kobayashi, Keisuke ;

Ikenaga, Eiji ;

Kim, Jung-Jin ;

Ueda, Shigenori .

PHYSICAL REVIEW B, 2006, 74 (10)

[2]

Biggs F., 1975, Atomic Data and Nuclear Data Tables, V16, P201, DOI 10.1016/0092-640X(75)90030-3

[3] Growth and magnetic properties of single crystal Co2MnX (X = Si, Ge) Heusler alloys [J].

Cheng, SF ;

Nadgorny, B ;

Bussmann, K ;

Carpenter, EE ;

Das, BN ;

Trotter, G ;

Raphael, MP ;

Harris, VG .

IEEE TRANSACTIONS ON MAGNETICS, 2001, 37 (04) :2176-2178

[4]

Cooper M.J., 2004, X-ray Compton Scattering

[5] NEW CLASS OF MATERIALS - HALF-METALLIC FERROMAGNETS [J].

DEGROOT, RA ;

MUELLER, FM ;

VANENGEN, PG ;

BUSCHOW, KHJ .

PHYSICAL REVIEW LETTERS, 1983, 50 (25) :2024-2027

[6]

Ebert H, 2000, LECT NOTES PHYS, V535, P191

[7] HYPERFINE FIELDS AND ELECTRONIC-STRUCTURES OF THE HEUSLER ALLOYS CO2MNAL, CO2MNGA, CO2MNSI, CO2MNGE, CO2MNSN [J].

FUJII, S ;

SUGIMURA, S ;

ISHIDA, S ;

ASANO, S .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1990, 2 (43) :8583-8589

[8] Slater-Pauling behavior and origin of the half-metallicity of the full-Heusler alloys [J].

Galanakis, I ;

Dederichs, PH ;

Papanikolaou, N .

PHYSICAL REVIEW B, 2002, 66 (17) :1-9

[9] SEARCH FOR HALF-METALLIC COMPOUNDS IN CO(2)MNZ (Z=IIIB, IVB, VB ELEMENT) [J].

ISHIDA, S ;

FUJII, S ;

KASHIWAGI, S ;

ASANO, S .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1995, 64 (06) :2152-2157

[10] Magnetic Compton profiles of Fcc-Ni, Fcc-Fe50Ni50 and Hcp-Co [J].

Kakutani, Y ;

Kubo, Y ;

Koizumi, A ;

Sakai, N ;

Ahuja, BL ;

Sharma, BK .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2003, 72 (03) :599-606

← 1 2 →