Orbital order in electron-doped manganites

被引：0
|
作者：
Schlottmann, P. [1 ]
机构：
[1] Department of Physics, Florida State University, Tallahassee, FL 32306, United States
来源：
Journal of Applied Physics | 2008年 / 103卷 / 07期
关键词：
In electron-doped LaMn O3; La is partially substituted by tetravalent Ce; and Mn has a valence between 2 and 3. Mn2+ ions have five localized 3d electrons (half-filled shell) and a spin S* =52. The Mn3+ configuration corresponds to an eg hole in the half-filled shell yielding a total spin S=2. A mean-field slave-boson formulation for hole doping has been extended to electron doping. For eg holes in two orbitals with excluded multiple occupancy and Hund's rule coupling between the eg and t2g states; we study the conditions for staggered orbital order in the A phase for electron doping. The long-range staggered order of the eg orbitals arises due to the competition of the superexchange; the double exchange; and the Jahn-Teller effect. © 2008 American Institute of Physics;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Conference article (CA)
引用
收藏
相关论文
共 50 条
  • [1] Orbital order in electron-doped manganites
    Schlottmann, P.
    JOURNAL OF APPLIED PHYSICS, 2008, 103 (07)
  • [2] Magnetic and orbital ordering in electron-doped manganites
    Dunaevsky, SM
    Deriglazov, VV
    PHYSICAL REVIEW B, 2003, 67 (01)
  • [3] Double exchange and orbital correlations in electron-doped manganites
    Maitra, T
    Taraphder, A
    EUROPHYSICS LETTERS, 2002, 59 (06): : 896 - 902
  • [4] Magnetic, orbital, and charge ordering in the electron-doped manganites
    Maitra, T
    Taraphder, A
    PHYSICAL REVIEW B, 2003, 68 (17)
  • [5] Orbital degeneracy and magnetic phases of electron-doped manganites
    Dunaevsky, SM
    Deriglazov, VV
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2003, 258 : 283 - 286
  • [6] Effect of orbital degeneracy on magnetic phases of electron-doped manganites
    Dunaevsky, SM
    Deriglazov, VV
    PHYSICA B-CONDENSED MATTER, 2003, 329 : 785 - 786
  • [7] Magnetic phases of electron-doped manganites
    Pai, GV
    PHYSICAL REVIEW B, 2001, 63 (06)
  • [8] Modeling of the thermopower of electron-doped manganites
    Frésard, R
    Hébert, S
    Maignan, A
    Pi, L
    Hejtmanek, J
    PHYSICS LETTERS A, 2002, 303 (2-3) : 223 - 228
  • [9] Large negative thermopower in electron-doped manganites
    Frésard, R
    Pi, L
    Hébert, S
    Martin, C
    Maignan, A
    Raveau, B
    ACTA PHYSICA POLONICA B, 2003, 34 (02): : 835 - 838
  • [10] Systematics in the thermopower of electron-doped layered manganites
    Fisher, B
    Patlagan, L
    Reisner, GM
    Knizhnik, A
    PHYSICAL REVIEW B, 2000, 61 (01): : 470 - 475
12345