Enhancement in multiferroic properties of Bi0.7-xLaxDy0.3FeO3 system with removal of La

被引：34
作者：
Prashanthi, K. [1 ]
Chalke, B. A. [2 ]
Barick, K. C. [1 ]
Das, A. [3 ]
Dhiman, I. [3 ]
Palkar, V. R. [1 ]
机构：
[1] Indian Inst Technol, Bombay 400076, Maharashtra, India
[2] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India
[3] Bhabha Atom Res Ctr, Bombay 400085, Maharashtra, India
来源：
SOLID STATE COMMUNICATIONS | 2009年 / 149卷 / 5-6期
关键词：
Magnetoelectrics; X-ray diffraction; Neutron diffraction; STRUCTURAL-PROPERTIES; SUBSTITUTION;
D O I：
10.1016/j.ssc.2008.11.025
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
La doping at Bi Site in multiferroic BiFeO3 (BFO) is known to stabilize the ferroelectric perovskite phase and reduce the leakage current. It has been observed that in Dy modified BFO sample, La is not required for the said reason. In fact, the removal of La from Dy modified BFO system leads to the reduction in leakage current. Moreover, the magnetic properties are enhanced by order of magnitude in the absence of La in the system. Remarkably, a similar trend in properties has been also observed in thin films grown on Pt/TiO2/SiO2/Si substrate by using the pulsed laser deposition technique. This significant variation in the properties after removal of La from the system could be attributed to the change in lattice parameters, bond lengths and Fe-O-Fe bond angle as determined by powder x-ray and neutron diffraction study. (c) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码：188 / 191
页数：4
相关论文
共 17 条
  • [1] Abdel-Latif I.A., 2006, Egypt. J. Solids, V29, P350
  • [2] AHN CW, 2007, J ELECTROCERAMI 0901
  • [3] Magnetic and structural properties of BiFe1-xMnxO3
    Azuma, Masaki
    Kanda, Hironori
    Belik, Alexel A.
    Shimakawa, Yuichi
    Takano, Mikio
    [J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2007, 310 (02) : 1177 - 1179
  • [4] MAGNETIC AND STRUCTURAL-PROPERTIES OF BIFEO3
    BLAAUW, C
    VANDERWO.F
    [J]. JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1973, 6 (08): : 1422 - 1431
  • [5] DAS R, 2007, J APPL PHYS, V101
  • [6] Effect of La substitution on structural and electrical properties of BiFeO3 thin film
    Das, SR
    Bhattacharya, P
    Choudhary, RNP
    Katiyar, RS
    [J]. JOURNAL OF APPLIED PHYSICS, 2006, 99 (06)
  • [7] Weak ferromagnetism and magnetoelectric coupling in bismuth ferrite
    Ederer, C
    Spaldin, NA
    [J]. PHYSICAL REVIEW B, 2005, 71 (06):
  • [8] NEUTRON-DIFFRACTION STUDY OF NUCLEAR AND MAGNETIC-STRUCTURE OF BIFEO3
    JACOBSON, AJ
    FENDER, BEF
    [J]. JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1975, 8 (06): : 844 - 850
  • [9] Ferromagnetism in nanoscale BiFeO3
    Mazumder, R.
    Devi, P. Sujatha
    Bhattacharya, Dipten
    Choudhury, P.
    Sen, A.
    Raja, M.
    [J]. APPLIED PHYSICS LETTERS, 2007, 91 (06)
  • [10] Palkar VR, 2007, J MATER RES, V22, P2068, DOI 10.1557/JMR.2007.0285
12