Magnetoelectric excitations in multiferroic Ni3TeO6

被引：15

作者：

Skiadopoulou, Stella ^{[1
]}

Borodavka, Fedir ^{[1
]}

Kadlec, Christelle ^{[1
]}

Kadlec, Filip ^{[1
]}

Retuerto, Maria ^{[2
]}

Deng, Zheng ^{[2
]}

Greenblatt, Martha ^{[2
]}

Kamba, Stanislav ^{[1
]}

机构：

[1] Czech Acad Sci, Inst Phys, Slovance 2, Prague 18221 8, Czech Republic

[2] Rutgers State Univ, Dept Chem & Chem Biol, 610 Taylor Rd, Piscataway, NJ 08854 USA

来源：

PHYSICAL REVIEW B | 2017年 / 95卷 / 18期

基金：

欧盟第七框架计划; 美国国家科学基金会;

关键词：

NUMERICAL-APERTURE OBJECTIVES; POLARIZATION MEASUREMENTS; SPIN;

D O I：

10.1103/PhysRevB.95.184435

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The spin-order-induced ferroelectric antiferromagnet Ni3TeO6 transcends the magnetoelectric performance of all other single-phase multiferroics because it exhibits nonhysteretic colossal magnetoelectric coupling [Y. S. Oh, S. Artyukhin, J. J. Yang, V. Zapf, J. W. Kim, D. Vanderbilt, and S.-W. Cheong, Nat Commun. 5, 3201 (2014)]. We investigated spin and lattice excitations in Ni3TeO6 by a combination of infrared, Raman, and THz spectroscopies. Two spin excitations (near 13 and 35 cm(-1)) were observed simultaneously in Raman and time-domain THz spectra below the Neel temperature T-N = 53 K. We propose to assign them to electromagnons, which are activated by the dynamic magnetoelectric coupling. A third magnon is seen only in the Raman spectra near 206 cm(-1).

引用

页数：6

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