In Autumn 2020, DOAJ will be relaunching with a new website with updated functionality, improved search, and a simplified application form. More information is available on our blog. Our API is also changing.

Hide this message

Li(Cd,Mn)P: a new cadmium based diluted ferromagnetic semiconductor with independent spin & charge doping

Scientific Reports. 2019;9(1):1-6 DOI 10.1038/s41598-019-43754-x

 

Journal Homepage

Journal Title: Scientific Reports

ISSN: 2045-2322 (Online)

Publisher: Nature Publishing Group

LCC Subject Category: Medicine | Science

Country of publisher: United Kingdom

Language of fulltext: English

Full-text formats available: PDF, HTML

 

AUTHORS


W. Han (Beijing National Laboratory for Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences)

B. J. Chen (Beijing National Laboratory for Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences)

B. Gu (Kavli Institute for Theoretical Sciences & CAS Center for Excellence in Topological Quantum Computation, University of Chinese Academy of Sciences)

G. Q. Zhao (Beijing National Laboratory for Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences)

S. Yu (Beijing National Laboratory for Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences)

X. C. Wang (Beijing National Laboratory for Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences)

Q. Q. Liu (Beijing National Laboratory for Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences)

Z. Deng (Beijing National Laboratory for Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences)

W. M. Li (Beijing National Laboratory for Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences)

J. F. Zhao (Beijing National Laboratory for Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences)

L. P. Cao (Beijing National Laboratory for Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences)

Y. Peng (Beijing National Laboratory for Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences)

X. Shen (Beijing National Laboratory for Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences)

X. H. Zhu (Department of Materials Science & Engineering, Sichuan University)

R. C. Yu (Beijing National Laboratory for Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences)

S. Maekawa (Advanced Science Research Center, Japan Atomic Energy Agency)

Y. J. Uemura (Department of Physics, Columbia University)

C. Q. Jin (Beijing National Laboratory for Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences)

EDITORIAL INFORMATION

Blind peer review

Editorial Board

Instructions for authors

Time From Submission to Publication: 20 weeks

 

Abstract | Full Text

Abstract 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 (<100 Oe) and giant negative magnetoresistance (~80%) in ferromagnetic state that will benefit potential spintronics applications.