Anisotropic magnetism and spin-dependent transport in Co nanoparticle embedded ZnO thin films

被引：12

作者：

Li, D. Y. ^{[1
]}

Zeng, Y. J. ^{[1
]}

Pereira, L. M. C. ^{[2
]}

Batuk, D. ^{[3
]}

Hadermann, J. ^{[3
]}

Zhang, Y. Z. ^{[4
]}

Ye, Z. Z. ^{[4
]}

Temst, K. ^{[2
]}

Vantomme, A. ^{[2
]}

Van Bael, M. J. ^{[1
]}

Van Haesendonck, C. ^{[1
]}

机构：

[1] Katholieke Univ Leuven, Lab Solid State Phys & Magnetism, BE-3001 Louvain, Belgium

[2] Katholieke Univ Leuven, Inst Kern Stralingsfys, BE-3001 Louvain, Belgium

[3] Univ Antwerp, Electron Microscopy Mat Sci EMAT, BE-2020 Antwerp, Belgium

[4] Zhejiang Univ, State Key Lab Silicon Mat, Dept Mat Sci & Engn, Hangzhou 310027, Peoples R China

来源：

JOURNAL OF APPLIED PHYSICS | 2013年 / 114卷 / 03期

基金：

比利时弗兰德研究基金会;

关键词：

GIANT MAGNETORESISTANCE; SEMICONDUCTORS; FERROMAGNETISM; SPINTRONICS; NANOWIRES; SYSTEMS; ALLOYS;

D O I：

10.1063/1.4815877

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Oriented Co nanoparticles were obtained by Co ion implantation in crystalline ZnO thin films grown by pulsed laser deposition. Transmission electron microscopy revealed the presence of elliptically shaped Co precipitates with nanometer size, which are embedded in the ZnO thin films, resulting in anisotropic magnetic behavior. The low-temperature resistance of the Co-implanted ZnO thin films follows the Efros-Shklovskii type variable-range-hopping. Large negative magnetoresistance (MR) exceeding 10% is observed in a magnetic field of 1 T at 2.5K and the negative MR survives up to 250K (0.3%). The negative MR reveals hysteresis as well as anisotropy that correlate well with the magnetic properties, clearly demonstrating the presence of spin-dependent transport. (C) 2013 AIP Publishing LLC.

引用

页数：6

共 50 条

[21] SPIN-DEPENDENT TUNNELING USING THIN SUPERCONDUCTING AL FILMS
MESERVEY, R
TEDROW, PM
BULLETIN OF THE AMERICAN PHYSICAL SOCIETY, 1971, 16 (01): : 68 - &
[22] Spin-dependent transport in uranium
Wu, M-H
Rossignol, H.
Gradhand, M.
PHYSICAL REVIEW B, 2020, 101 (22)
[23] Dual-band spin-dependent perfect absorber with anisotropic thin films in mid-infrared range
Ma, Wenyang
Cui, Xin
Qian, Liming
Ye, Jingfei
Xian, Fenglin
Zheng, Gaige
PHYSICA SCRIPTA, 2025, 100 (01)
[24] Spin-Dependent Transport through Chiral Molecules Studied by Spin-Dependent Electrochemistry
Mondal, Prakash Chandra
Fontanesi, Claudio
Waldeck, David H.
Naaman, Ron
ACCOUNTS OF CHEMICAL RESEARCH, 2016, 49 (11) : 2560 - 2568
[25] Defect dependent polarized spin current in 1% Co doped ZnO thin films
Can, Musa Mutlu
Shah, S. Ismat
Firat, Tezer
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2015, 377 : 229 - 238
[26] Spin-dependent transport in amorphous silicon thin-film transistors
Graeff, CFO
Kawachi, G
Brandt, MS
Stutzmann, M
Powell, MJ
JOURNAL OF NON-CRYSTALLINE SOLIDS, 1996, 198 : 1117 - 1120
[27] Spin-dependent transport in amorphous silicon thin-film transistors
Technische Universitaet Muenchen, Garching, Germany
J Non Cryst Solids, pt 2 (1117-1120):
[28] Spin-dependent intergranular transport in magnetite films deposited by ferrite plating
Kitamoto, Y
Nakayama, Y
Abe, M
JOURNAL OF APPLIED PHYSICS, 2000, 87 (09) : 7130 - 7132
[29] Spin-Dependent Transport in Thin Film InSb with Ferromagnetic Co0.6Fe0.4 Electrodes
Kim, Yong-Jae
Rudolph, M.
Kallaher, R. L.
Heremans, J. J.
15TH INTERNATIONAL CONFERENCE ON NARROW GAP SYSTEMS (NGS15), 2011, 1416 : 158 - 160
[30] Ultrafast spin-dependent electron dynamics at the surface of ferromagnetic thin films
Schmidt, Anke B.
Pickel, Martin
Donath, Markus
Weinelt, Martin
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2007, 310 (02) : 2330 - 2332

← 1 2 3 4 5 →