Volume 129, Issue 34 pp. 10330-10333
Zuschrift

Single-Domain Ferromagnet of Noncentrosymmetric Uniaxial Magnetic Ions and Magnetoelectric Interaction

Prof. Dr. Hyun-Joo Koo

Prof. Dr. Hyun-Joo Koo

Department of Chemistry and Research Institute for Basic Sciences, Kyung Hee University, Seoul, 02447 Republic of Korea

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Elijah E. Gordon

Elijah E. Gordon

Department of Chemistry, North Carolina State University, Raleigh, NC, 27695-8204 USA

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Prof. Dr. Myung-Hwan Whangbo

Corresponding Author

Prof. Dr. Myung-Hwan Whangbo

Department of Chemistry, North Carolina State University, Raleigh, NC, 27695-8204 USA

Group SDeng, State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter (FJIRSM), Chinese Academy of Sciences (CAS), Fuzhou, 350002 China

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First published: 25 April 2017
Citations: 1

Abstract

The feasibility of a single-domain ferromagnet based on uniaxial magnetic ions was examined. For a noncentrosymmetric uniaxial magnetic ion of magnetic moment μ at a site of local electric dipole moment p, it is unknown to date whether μ prefers to be parallel or antiparallel to μ. The nature of this magnetoelectric interaction was probed in terms of analogical reasoning based on the Rashba effect and density functional theory (DFT) calculations. We show that μ and p prefer an antiparallel arrangement, predict that Fe-doped CaZnOS is a single-domain ferromagnet like a bar magnet, and find the probable cause for the ferromagnetism and weak magnetization hysteresis in Fe-doped hexagonal ZnO and ZnS at very low dopant concentrations.

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