Theory of magnetoelectric response in Co4Nb2O9

Yuki Yanagi; Satoru Hayami; Hiroaki Kusunose

doi:10.1016/j.physb.2017.10.025

Theory of magnetoelectric response in Co₄Nb₂O₉

Yuki Yanagi, Satoru Hayami, Hiroaki Kusunose

Department of Physics

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

The mechanism of the observed novel magnetoelectric effects in Co₄Nb₂O₉ is addressed by calculating the magnetoelectric tensor of the realistic effective model derived from the first principles calculation. The obtained magnetic-field angle dependence of the electric polarization qualitatively reproduces the experimental result. It is shown that the orbital contribution dominates the magnetoelectric response and the angle dependence can be understood by the first order perturbation with respect to the spin-orbit coupling.

Original language	English
Pages (from-to)	107-110
Number of pages	4
Journal	Physica B: Condensed Matter
Volume	536
DOIs	https://doi.org/10.1016/j.physb.2017.10.025
Publication status	Published - 1 May 2018

Keywords

CoNbO
Magnetoelectric effect

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10.1016/j.physb.2017.10.025

Cite this

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title = "Theory of magnetoelectric response in Co4Nb2O9 ",

abstract = "The mechanism of the observed novel magnetoelectric effects in Co4Nb2O9 is addressed by calculating the magnetoelectric tensor of the realistic effective model derived from the first principles calculation. The obtained magnetic-field angle dependence of the electric polarization qualitatively reproduces the experimental result. It is shown that the orbital contribution dominates the magnetoelectric response and the angle dependence can be understood by the first order perturbation with respect to the spin-orbit coupling.",

keywords = "CoNbO, Magnetoelectric effect",

author = "Yuki Yanagi and Satoru Hayami and Hiroaki Kusunose",

note = "Funding Information: The authors would like to thank T. Arima and Y. Motome for fruitful discussions. This work has been supported by JSPS KAKENHI Grant Number 15H05885 (J-Physics) and 15K05176 . ",

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doi = "10.1016/j.physb.2017.10.025",

language = "English",

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journal = "Physica B: Condensed Matter",

issn = "0921-4526",

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T1 - Theory of magnetoelectric response in Co4Nb2O9

AU - Yanagi, Yuki

AU - Hayami, Satoru

AU - Kusunose, Hiroaki

N1 - Funding Information: The authors would like to thank T. Arima and Y. Motome for fruitful discussions. This work has been supported by JSPS KAKENHI Grant Number 15H05885 (J-Physics) and 15K05176 .

PY - 2018/5/1

Y1 - 2018/5/1

N2 - The mechanism of the observed novel magnetoelectric effects in Co4Nb2O9 is addressed by calculating the magnetoelectric tensor of the realistic effective model derived from the first principles calculation. The obtained magnetic-field angle dependence of the electric polarization qualitatively reproduces the experimental result. It is shown that the orbital contribution dominates the magnetoelectric response and the angle dependence can be understood by the first order perturbation with respect to the spin-orbit coupling.

AB - The mechanism of the observed novel magnetoelectric effects in Co4Nb2O9 is addressed by calculating the magnetoelectric tensor of the realistic effective model derived from the first principles calculation. The obtained magnetic-field angle dependence of the electric polarization qualitatively reproduces the experimental result. It is shown that the orbital contribution dominates the magnetoelectric response and the angle dependence can be understood by the first order perturbation with respect to the spin-orbit coupling.

KW - CoNbO

KW - Magnetoelectric effect

UR - http://www.scopus.com/inward/record.url?scp=85034742689&partnerID=8YFLogxK

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DO - 10.1016/j.physb.2017.10.025

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AN - SCOPUS:85034742689

VL - 536

SP - 107

EP - 110

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

SN - 0921-4526