Investigation on Spin Dependent Transport Properties of Core-Shell Structural Fe(3)O(4)/ZnS Nanocomposites for Spintronic Application

The core-shell structural Fe(3)O(4)/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 Fe(3)O(4) particles...

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Detalles Bibliográficos
Autores principales: Liu, Er, Yuan, Honglei, Kou, Zhaoxia, Wu, Xiumei, Xu, Qingyu, Zhai, Ya, Sui, Yunxia, You, Biao, Du, Jun, Zhai, Hongru
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2015
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4459152/
https://www.ncbi.nlm.nih.gov/pubmed/26053888
http://dx.doi.org/10.1038/srep11164
Descripción
Sumario:The core-shell structural Fe(3)O(4)/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 Fe(3)O(4) particles. Spin dependent electrical transport is studied on Fe(3)O(4)/ZnS nanocomposites with different shell thickness, and a large magnetoresistance (MR) ratio is observed under the magnetic field of 1.0 T at room temperature and 100 K for the compacted sample by Fe(3)O(4)/ZnS nanocomposites, which is 50% larger than that of sample with pure Fe(3)O(4) particles, indicating that the enhanced MR is contributed from the spin injection between Fe(3)O(4) and ZnS layer.

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