Li(Cd,Mn)P: a new cadmium based diluted ferromagnetic semiconductor with independent spin & charge doping
| Autor: | Jiecai Zhao, Bo Gu, Changqing Jin, Rencheng Yu, Zhiting Deng, Guijuan Zhao, Wen-Zhu Li, Q. Q. Liu, Sadamichi Maekawa, Xingyu Zhu, Yasutomo J. Uemura, Xi Shen, Binfan Chen, Shui-Yan Yu, Lei Cao, W. Han, Xuezhao Wang, Yunfeng Peng |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
0301 basic medicine
Multidisciplinary Materials science Spintronics Magnetoresistance Doping lcsh:R Analytical chemistry lcsh:Medicine Coercivity Article 03 medical and health sciences 030104 developmental biology 0302 clinical medicine Semiconductors Ferromagnetism Hall effect Curie temperature lcsh:Q lcsh:Science Arrott plot 030217 neurology & neurosurgery |
| Zdroj: | Scientific Reports, Vol 9, Iss 1, Pp 1-6 (2019) Scientific Reports |
| ISSN: | 2045-2322 |
| Popis: | We report a new diluted ferromagnetic semiconductor Li1+y(Cd,Mn)P, wherein carrier is doped via excess Li while spin is doped by isovalence substitution of Mn2+ into Cd2+. The extended Cd 4d-orbitals lead to more itinerant characters of Li1+y(Cd,Mn)P than that of analogous Li1+y(Zn,Mn)P. A higher Curie temperature of 45 K than that for Li1+y(Zn,Mn)P is obtained in Li1+y(Cd,Mn)P polycrystalline samples by Arrott plot technique. The p-type carriers are determined by Hall effect measurements. The first principle calculations and X-ray diffraction measurements indicate that occupation of excess Li is at Cd sites rather than the interstitial site. Consequently holes are doped by excess Li substitution. More interestingly Li1+y(Cd,Mn)P shows a very low coercive field ( |
| Databáze: | OpenAIRE |
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