Micro-Raman and infrared studies of multiferroic TbMn2O5

被引：13
|
作者：
Mansouri, S. [1 ]
Jandl, S. [1 ]
Roberge, B. [1 ]
Balli, M. [1 ]
Dimitrov, D. Z. [2 ]
Orlita, M. [3 ]
Faugeras, C. [3 ]
机构：
[1] Univ Sherbrooke, Dept Phys, 2500 Blvd Univ, Sherbrooke, PQ J1K 2R1, Canada
[2] Bulgarian Acad Sci, Inst Opt Mat & Technol, BU-1113 Sofia, Bulgaria
[3] Grenoble High Magnet Field Lab, 25 Ave Martyrs,Boite Postale 166, F-38042 Grenoble, France
来源：
JOURNAL OF PHYSICS-CONDENSED MATTER | 2016年 / 28卷 / 05期
关键词：
multiferroics; Raman spectroscopy; infrared spectroscopy; magnetization curve;
D O I：
10.1088/0953-8984/28/5/055901
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We have studied the Raman and infrared spectral response of TbMn2O5 under an applied magnetic field parallel to the easy magnetic a-axis at 4.2 K. Strong spin-lattice coupling in TbMn2O5 is evidenced by a frequency shift of Raman and infrared phonons as a function of magnetic field compared to the phonon response of BiMn2O5 that remains unaffected. The magnetic field behavior of the highest frequency phonons retraces the polarization switching in TbMn2O5 and shows an important frequency softening below 3 T that is modulated by the J(3) and J(4) exchange parameters. The role of the Tb3+ spin alignment with H is interpreted in terms of a local lattice striction and the contribution of the charge transfer mechanism to the magnetoelectric process is evaluated.
引用
收藏
页数：6
相关论文
共 50 条
  • [1] Investigation of the electromagnon excitations in the multiferroic TbMn2O5
    Petit, S.
    Baledent, V.
    Doubrovsky, C.
    Lepetit, M. B.
    Greenblatt, M.
    Wanklyn, B.
    Foury-Leylekian, P.
    PHYSICAL REVIEW B, 2013, 87 (14):
  • [2] Size effect on multiferroic TbMn2O5 nanorods
    Yang, Chun-Chuen
    Tung, Yung-Hsiang
    Chen, Yi-Jung
    Hsu, Ting-Wei
    You, Pang-Yen
    Chan, Ting-Shan
    Chen, Yang-Yuan
    JOURNAL OF APPLIED PHYSICS, 2015, 117 (17)
  • [3] Neutron polarization analysis on the multiferroic TbMn2O5
    Chang, L. J.
    Su, Y.
    Schweika, W.
    Brueckel, Th.
    Chen, Y. Y.
    Jang, D. S.
    Liu, R. S.
    PHYSICA B-CONDENSED MATTER, 2009, 404 (17) : 2517 - 2519
  • [4] Electronic and magnetic properties of the multiferroic TbMn2O5
    A. Endichi
    H. Bouhani
    H. Zaari
    M. Balli
    O. Mounkachi
    A. El Kenz
    A. Benyoussef
    S. Mangin
    Applied Physics A, 2020, 126
  • [5] Electronic and magnetic properties of the multiferroic TbMn2O5
    Endichi, A.
    Bouhani, H.
    Zaari, H.
    Balli, M.
    Mounkachi, O.
    El Kenz, A.
    Benyoussef, A.
    Mangin, S.
    APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2020, 126 (06):
  • [6] Electromagnons in multiferroic YMn2O5 and TbMn2O5
    Sushkov, A. B.
    Aguilar, R. Valdes
    Cheong, S-W
    Drew, H. D.
    PHYSICAL REVIEW LETTERS, 2007, 98 (02)
  • [7] Anomalous reduced sound velocity of multiferroic TbMn2O5
    Cao Xian-Sheng
    CHINESE JOURNAL OF PHYSICS, 2018, 56 (02) : 520 - 524
  • [8] Raman and crystal field studies of Tb-O bonds in TbMn2O5
    Mansouri, S.
    Jandl, S.
    Balli, M.
    Laverdiere, J.
    Fournier, P.
    Dimitrov, D. Z.
    PHYSICAL REVIEW B, 2016, 94 (11)
  • [9] Infrared phonon signatures of multiferroicity in TbMn2O5
    Aguilar, R. Valdes
    Sushkov, A. B.
    Park, S.
    Cheong, S. -W.
    Drew, H. D.
    PHYSICAL REVIEW B, 2006, 74 (18)
  • [10] Non-resonant and resonant x-ray scattering studies on multiferroic TbMn2O5
    Koo, J.
    Song, C.
    Ji, S.
    Lee, J. -S.
    Park, J.
    Jang, T. -H.
    Yang, C. -H.
    Park, J.-H.
    Jeong, Y. H.
    Lee, K. -B.
    Koo, T. Y.
    Park, Y. J.
    Kim, J. -Y.
    Wermeille, D.
    Goldman, A. I.
    Srajer, G.
    Park, S.
    Cheong, S. -W.
    PHYSICAL REVIEW LETTERS, 2007, 99 (19)
12345