Magnetoresistance and exchange bias effect of (Co2MnSi)1-x-(NiO)x nanocomposites

被引：0

作者：

Cai, Xinle ^{[1
]}

Li, Shandong ^{[1
,2
]}

Liu, Meimei ^{[2
]}

Wu, Jianpeng ^{[1
]}

Hu, Yi ^{[1
]}

Qiu, Jie ^{[1
]}

Lin, Jianhua ^{[1
]}

机构：

[1] Fujian Normal Univ, Dept Phys, Fuzhou 350007, Peoples R China

[2] Chinese Acad Sci, Fujian Inst Res Struct Matter, Fuzhou, Peoples R China

来源：

NEW MATERIALS, APPLICATIONS AND PROCESSES, PTS 1-3 | 2012年 / 399-401卷

关键词：

Half-metallic ferromagnets; magnetoresistance; exchange bias; interface coupling; TEMPERATURE; CO2MNSI;

D O I：

10.4028/www.scientific.net/AMR.399-401.620

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The (Co2MnSi)(1-x)-(NiO)(x) (x = 0.0, 0.1, 0.2, 0.3) nanocomposites were fabricated by mechanical alloying using Co2MnSi Heusler alloy and NiO nanoparticles. It is revealed that antiferromagnetic NiO nanocrystallines dramatically enhances the magnetoresistance of the nanocomposites more than 20 times larger than that of the NiO-free Co2MnSi alloys at 300 K. The Exchange bias effect of the nanocomposites suggests that the spin-dependent tunneling and scattering at the interfaces of ferromagnetic/antiferromagnetic are responsible for the enhancement of the magnetoresistance.

引用

页码：620 / +

页数：2

共 50 条

[31] Exchange bias and its training effect in Ni/NiO nanocomposites
Guo, S.
Liu, W.
Meng, H.
Liu, X. H.
Gong, W. J.
Han, Z.
Zhang, Z. D.
JOURNAL OF ALLOYS AND COMPOUNDS, 2010, 497 (1-2) : 10 - 13
[32] Quadratic magneto-optical Kerr effect in Co2MnSi
Wolf, Georg
Hamrle, Jaroslav
Trudel, Simon
Kubota, Takahide
Ando, Yasuo
Hillebrands, Burkard
JOURNAL OF APPLIED PHYSICS, 2011, 110 (04)
[33] Synthesis and exchange bias effect of CuFe2O4/NiO nanocomposites
Tian, Z. M.
Yuan, S. L.
Liu, L.
Yin, S. Y.
Jia, L. C.
Duan, H. N.
Li, P.
Wang, C. H.
Li, J. Q.
SMART MATERIALS & STRUCTURES, 2009, 18 (01):
[34] Exchange bias training effect in NiFe2O4/NiO nanocomposites
Tian, Z. M.
Yuan, S. L.
Liu, L.
Yin, S. Y.
Jia, L. C.
Li, P.
Huo, S. X.
Li, J. Q.
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2009, 42 (03)
[35] Electronic properties of Co2MnSi thin films studied by hard x-ray photoelectron spectroscopy
Ouardi, Siham
Gloskovskii, Andrei
Balke, Benjamin
Jenkins, Catherine A.
Barth, Joachim
Fecher, Gerhard H.
Felser, Claudia
Gorgoi, Mihaela
Mertin, Marcel
Schaefers, Franz
Ikenaga, Eiji
Yang, Ke
Kobayashi, Keisuke
Kubota, Takahide
Oogane, Mikihiko
Ando, Yasuo
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2009, 42 (08)
[36] Effect of nonstoichiometry on the half-metallic character of Co2MnSi investigated through saturation magnetization and tunneling magnetoresistance ratio
Li, Gui-fang
Honda, Yusuke
Liu, Hong-xi
Matsuda, Ken-ichi
Arita, Masashi
Uemura, Tetsuya
Yamamoto, Masafumi
Miura, Yoshio
Shirai, Masafumi
Saito, Toshiaki
Shi, Fengyuan
Voyles, Paul M.
PHYSICAL REVIEW B, 2014, 89 (01)
[37] Coexistence of exchange bias effect and giant magnetoresistance in a Ni/NiO nanogranular sample
Del Bianco, L.
Spizzo, F.
Tamisari, M.
Castiglioni, A.
JOURNAL OF APPLIED PHYSICS, 2011, 110 (04)
[38] Unusual Anomalous Hall Effect in a Co2MnSi/MnGa/Pt Trilayer
黎姗
鲁军
文炼均
潘东
王海龙
魏大海
赵建华
Chinese Physics Letters, 2020, 37 (07) : 122 - 125
[39] Unusual Anomalous Hall Effect in a Co2MnSi/MnGa/Pt Trilayer
Li, Shan
Lu, Jun
Wen, Lian-Jun
Pan, Dong
Wang, Hai-Long
Wei, Da-Hai
Zhao, Jian-Hua
CHINESE PHYSICS LETTERS, 2020, 37 (07)
[40] Spin Seebeck effect in thin films of the Heusler compound Co2MnSi
Bosu, S.
Sakuraba, Y.
Uchida, K.
Saito, K.
Ota, T.
Saitoh, E.
Takanashi, K.
PHYSICAL REVIEW B, 2011, 83 (22)

← 1 2 3 4 5 →