Systematics of electromagnons in the spiral spin-ordered states of RMnO3

被引：34

作者：

Lee, J. S. ^{[1
]}

Kida, N. ^{[1
]}

Miyahara, S. ^{[1
]}

Takahashi, Y. ^{[1
,2
]}

Yamasaki, Y.

Shimano, R. ^{[1
,3
]}

Furukawa, N. ^{[1
,4
]}

Tokura, Y. ^{[1
,2
,5
]}

机构：

[1] Univ Tokyo, Dept Appl Phys, Exploratory Res Adv Technol ERATO, Japan Sci & Technol Agcy JST, Tokyo 1138656, Japan

[2] Univ Tokyo, Dept Appl Phys, Tokyo 1138656, Japan

[3] Univ Tokyo, Dept Phys, Tokyo 1130033, Japan

[4] Aoyama Gakuin Univ, Dept Math & Phys, Kanagawa 2298558, Japan

[5] RIKEN, Cross Correlated Mat Res Grp CMRG, ASI, Wako, Saitama 3510198, Japan

来源：

PHYSICAL REVIEW B | 2009年 / 79卷 / 18期

关键词：

dysprosium compounds; exchange interactions (electron); gadolinium compounds; magnons; multiferroics; terbium compounds;

D O I：

10.1103/PhysRevB.79.180403

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Electromagnon, magnetic excitation driven by an electric field of light, has been investigated for a series of perovskite manganites RMnO3. Two distinct excitations commonly appear in the spiral spin-ordered state, and systematic changes in their peak positions and spectral weights were observed as a function of the radius of the R-ion or equivalently of spin-exchange interaction energies. By comparing the results with the spin-wave calculation based on the Heisenberg model, the higher-lying excitation is assigned to the zone-edge magnon. The strong electric-dipole activity of these magnetic excitations is discussed in terms of dynamic coupling among the collective modes.

引用

页数：4

共 40 条

[1] Origin of multiferroic spiral spin order in the RMnO3 perovskites
Dong, Shuai
Yu, Rong
Yunoki, Seiji
Liu, J. -M.
Dagotto, Elbio
PHYSICAL REVIEW B, 2008, 78 (15)
[2] Model for twin electromagnons and magnetically induced oscillatory polarization in multiferroic RMnO3
Stenberg, Markku P. V.
de Sousa, Rogerio
PHYSICAL REVIEW B, 2009, 80 (09):
[3] Lattice dynamics in the ab- and bc-spiral spin-ordered states of perovskite manganites
Lee, J. S.
Kida, N.
Yamasaki, Y.
Shimano, R.
Tokura, Y.
PHYSICAL REVIEW B, 2009, 80 (13):
[4] Lattice and spin dynamics in multiferroic BiFeO3 and RMnO3
Yan Song
Ben Xu
Ce-Wen Nan
National Science Review, 2019, 6 (04) : 642 - 652
[5] Spin-Ordered States in Multilayer Massless Dirac Fermion Systems
Kubo, Kenji
Morinari, Takao
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2014, 83 (03)
[6] Spin-rotation phenomena and magnetic phase diagrams of hexagonal RMnO3
Fiebig, M. (fiebig@mbi-berlin.de), 1600, American Institute of Physics Inc. (93):
[7] THE LOCAL MAGNETIC STATES IN SPIN-ORDERED AMORPHOUS AND CRYSTALLINE ALLOYS
STETSENKO, PN
HYPERFINE INTERACTIONS, 1990, 59 (1-4): : 237 - 254
[8] Spin-rotation phenomena and magnetic phase diagrams of hexagonal RMnO3
Fiebig, M
Lottermoser, T
Pisarev, RV
JOURNAL OF APPLIED PHYSICS, 2003, 93 (10) : 8194 - 8196
[9] Spin-Lattice Coupling, Frustration, and Magnetic Order in Multiferroic RMnO3
Fabreges, X.
Petit, S.
Mirebeau, I.
Pailhes, S.
Pinsard, L.
Forget, A.
Fernandez-Diaz, M. T.
Porcher, F.
PHYSICAL REVIEW LETTERS, 2009, 103 (06)
[10] Theory of spin-phonon coupling in multiferroic manganese perovskites RMnO3
Mochizuki, Masahito
Furukawa, Nobuo
Nagaosa, Naoto
PHYSICAL REVIEW B, 2011, 84 (14)

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