Investigation on Spin Dependent Transport Properties of Core-Shell Structural Fe3O4/ZnS Nanocomposites for Spintronic Application

被引：35

作者：

Liu, Er ^{[1
]}

Yuan, Honglei ^{[1
]}

Kou, Zhaoxia ^{[1
]}

Wu, Xiumei ^{[1
]}

Xu, Qingyu ^{[1
]}

Zhai, Ya ^{[1
,2
]}

Sui, Yunxia ^{[3
]}

You, Biao ^{[2
]}

Du, Jun ^{[2
]}

Zhai, Hongru ^{[2
,3
]}

机构：

[1] Southeast Univ, Dept Phys, Nanjing 211189, Jiangsu, Peoples R China

[2] Nanjing Univ, Natl Lab Solid Microstruct, Nanjing 210093, Jiangsu, Peoples R China

[3] Nanjing Univ, Ctr Mat Anal, Nanjing 210093, Jiangsu, Peoples R China

来源：

SCIENTIFIC REPORTS | 2015年 / 5卷

关键词：

MAGNETORESISTANCE; MICROSPHERES; DRIVEN;

D O I：

10.1038/srep11164

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The core-shell structural Fe3O4/ZnS nanocomposites with controllable shell thickness were well-fabricated via seed-mediate growth method. Structural and morphological characterizations reveal the direct deposition of crystalline II-VI compound semiconductor ZnS shell layer on Fe3O4 particles. Spin dependent electrical transport is studied on Fe3O4/ZnS nanocomposites with different shell thickness, and a large magnetoresistance (MR) ratio is observed under the magnetic field of 1.0T at room temperature and 100 K for the compacted sample by Fe3O4/ZnS nanocomposites, which is 50% larger than that of sample with pure Fe3O4 particles, indicating that the enhanced MR is contributed from the spin injection between Fe3O4 and ZnS layer.

引用

页数：11

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