Dielectric tunability and magnetoelectric coupling in LuFe2O4 epitaxial thin film deposited by pulsed-laser deposition

被引：10
作者：
Zeng, M. [1 ,2 ]
Liu, J. [1 ]
Qin, Y. B. [3 ]
Yang, H. X. [3 ]
Li, J. Q. [3 ]
Dai, J. Y. [1 ]
机构：
[1] Hong Kong Polytech Univ, Dept Appl Phys, Hong Kong, Hong Kong, Peoples R China
[2] S China Normal Univ, Sch Phys & Telecommun Engn, Inst Adv Mat, Guangzhou 510006, Guangdong, Peoples R China
[3] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China
来源：
THIN SOLID FILMS | 2012年 / 520卷 / 20期
基金：
美国国家科学基金会;
关键词：
Magnetoelectric coupling; Dielectric tunability; Charge-Ordering; Multiferroics; Pulsed-laser deposition; X-ray diffraction; Lutetium ferrite; ROOM-TEMPERATURE; SYSTEM LUFE2O4; CHARGE; MAGNETORESISTANCE; OXIDES;
D O I：
10.1016/j.tsf.2012.06.058
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
C-axis orientated LuFe2O4 thin films on (001) sapphire substrates are epitaxially deposited by pulsed-laser deposition. Temperature-dependent resistance characterization reveals the ferrimagnetic transition at 237K and charge-ordering transition at 340K in the film. Importantly, the dielectric constant of the film can be significantly changed by both electric and magnetic fields. The dielectric tunability reaches 35% when an electric field of 5V is applied, while this value reduces to 20% and 15%, respectively, when a magnetic field of 0.83T is applied perpendicular and parallel to the film normal direction. This suggests a magnetically controlled dielectric tunability and strong magnetoelectric coupling, and is therefore promising for tunable device applications in film form. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：6446 / 6449
页数：4
相关论文
共 27 条
  • [1] Three-dimensional magnetic correlations in multiferroic LuFe2O4
    Christianson, A. D.
    Lumsden, M. D.
    Angst, M.
    Yamani, Z.
    Tian, W.
    Jin, R.
    Payzant, E. A.
    Nagler, S. E.
    Sales, B. C.
    Mandrus, D.
    [J]. PHYSICAL REVIEW LETTERS, 2008, 100 (10)
  • [2] Charge and spin ordering in the mixed-valence compound LuFe2O4
    Harris, A. B.
    Yildirim, T.
    [J]. PHYSICAL REVIEW B, 2010, 81 (13):
  • [3] SUCCESSIVE PHASE-TRANSITIONS IN NEARLY STOICHIOMETRIC ERFE2O4
    IIDA, J
    TANAKA, M
    KITO, H
    AKIMITSU, J
    [J]. JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1990, 59 (11) : 4190 - 4191
  • [4] Ferroelectricity from iron valence ordering in the charge-frustrated system LuFe2O4
    Ikeda, N
    Ohsumi, H
    Ohwada, K
    Ishii, K
    Inami, T
    Kakurai, K
    Murakami, Y
    Yoshii, K
    Mori, S
    Horibe, Y
    Kitô, H
    [J]. NATURE, 2005, 436 (7054) : 1136 - 1138
  • [5] Charge ordering and dielectric dispersion in mixed valence oxides RFe2O4
    Ikeda, N
    Mori, S
    Kohn, K
    [J]. FERROELECTRICS, 2005, 314 : 41 - 56
  • [6] Electronic Origin of Giant Magnetic Anisotropy in Multiferroic LuFe2O4
    Ko, K. -T.
    Noh, H. -J.
    Kim, J. -Y.
    Park, B. -G.
    Park, J. -H.
    Tanaka, A.
    Kim, S. B.
    Zhang, C. L.
    Cheong, S-W.
    [J]. PHYSICAL REVIEW LETTERS, 2009, 103 (20)
  • [7] Electrical control of magnetization in charge-ordered multiferroic LuFe2O4
    Li, Chang-Hui
    Wang, Fen
    Liu, Yi
    Zhang, Xiang-Qun
    Cheng, Zhao-Hua
    Sun, Young
    [J]. PHYSICAL REVIEW B, 2009, 79 (17)
  • [8] Room temperature giant dielectric tunability effect in bulk LuFe2O4
    Li, Chang-Hui
    Zhang, Xiang-Qun
    Cheng, Zhao-Hua
    Sun, Young
    [J]. APPLIED PHYSICS LETTERS, 2008, 92 (18)
  • [9] Structural and dielectric properties of LuFe2O4 thin films grown by pulsed-laser deposition
    Liu, J.
    Wang, Y.
    Dai, J. Y.
    [J]. THIN SOLID FILMS, 2010, 518 (23) : 6909 - 6914
  • [10] Direct Observation of Charge Order and an Orbital Glass State in Multiferroic LuFe2O4
    Mulders, A. M.
    Lawrence, S. M.
    Staub, U.
    Garcia-Fernandez, M.
    Scagnoli, V.
    Mazzoli, C.
    Pomjakushina, E.
    Conder, K.
    Wang, Y.
    [J]. PHYSICAL REVIEW LETTERS, 2009, 103 (07)
123