Single Crystal Growth and Spin Polarization Measurements of Diluted Magnetic Semiconductor (BaK)(ZnMn)(2)As(2)

Recently a new diluted magnetic semiconductor, (Ba,K)(Zn,Mn)(2)As(2) (BZA), with high Curie temperature was discovered, showing an independent spin and charge-doping mechanism. This makes BZA a promising material for spintronics devices. We report the successful growth of a BZA single crystal for th...

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Detalles Bibliográficos
Autores principales: Zhao, G. Q., Lin, C. J., Deng, Z., Gu, G. X., Yu, S., Wang, X. C., Gong, Z. Z., Uemura, Yasutomo J., Li, Y. Q., Jin, C. Q.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5670247/
https://www.ncbi.nlm.nih.gov/pubmed/29101360
http://dx.doi.org/10.1038/s41598-017-08394-z
Descripción
Sumario:Recently a new diluted magnetic semiconductor, (Ba,K)(Zn,Mn)(2)As(2) (BZA), with high Curie temperature was discovered, showing an independent spin and charge-doping mechanism. This makes BZA a promising material for spintronics devices. We report the successful growth of a BZA single crystal for the first time in this study. An Andreev reflection junction, which can be used to evaluate spin polarization, was fabricated based on the BZA single crystal. A 66% spin polarization of the BZA single crystal was obtained by Andreev reflection spectroscopy analysis.

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