Structural and magnetic ordering in La0.6Ca0.4MnO3

被引:14
作者
Das, A [1 ]
Chakraborty, KR
Gupta, SS
Kulshreshtha, SK
Paranjpe, SK
机构
[1] Bhabha Atom Res Ctr, Div Solid State Phys, Trombay 400085, Mumbai, India
[2] Bhabha Atom Res Ctr, Novel Mat & Struct Chem Div, Trombay 400085, Mumbai, India
关键词
magnetic oxides; neutron powder diffraction; magnetic order; neutron depolarization;
D O I
10.1016/S0304-8853(01)00495-4
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The structural and magnetic ordering in La0.6Ca0.4MnO3 has been studied by neutron powder diffraction as a function of temperature between 15 and 300 K. The para-ferromagnetic transition at T similar to 250 K is accompanied by significant structural distortions in the form of octahedral Mn-O-6 rotations. At 15 K, the total refined ferromagnetic moment on the Mn site was obtained as 3.1 mu (B), in reasonable agreement with the total expected average moment of mixed Mn3+/Mn4+ matrix. (C) 2001 Published by Elsevier Science B.V.
引用
收藏
页码:41 / 46
页数:6
相关论文
共 15 条
[1]   Lattice effects and magnetic order in the canted ferromagnetic insulator La(0.87)5Sr(0.125)MnO(3+delta) [J].
Argyriou, DN ;
Mitchell, JF ;
Potter, CD ;
Hinks, DG ;
Jorgensen, JD ;
Bader, SD .
PHYSICAL REVIEW LETTERS, 1996, 76 (20) :3826-3829
[2]   Heat capacity, entropy and volume change near phase transition temperature in La1-xCaxMnO3 [J].
Biernacki, SW .
SOLID STATE COMMUNICATIONS, 2000, 116 (09) :471-476
[3]   Magnetic and calorimetric measurements on the magnetocaloric effect in La0.6Ca0.4MnO3 [J].
Bohigas, X ;
Tejada, J ;
Marínez-Sarrión, ML ;
Tripp, S ;
Black, R .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2000, 208 (1-2) :85-92
[4]   Neutron depolarization measurements on the reentrant spin-glass bcc Cr-Fe-Mn alloy [J].
Das, A ;
Paranjpe, SK ;
Honda, S ;
Murayama, S ;
Tsuchiya, Y .
JOURNAL OF PHYSICS-CONDENSED MATTER, 1999, 11 (26) :5209-5217
[5]   EFFECTS OF DOUBLE EXCHANGE IN MAGNETIC CRYSTALS [J].
DEGENNES, PG .
PHYSICAL REVIEW, 1960, 118 (01) :141-154
[6]   Structure and magnetic order in La1-xCaxMnO3 (0<x≤0.33) [J].
Huang, Q ;
Santoro, A ;
Lynn, JW ;
Erwin, RW ;
Borchers, JA ;
Peng, JL ;
Ghosh, K ;
Greene, RL .
PHYSICAL REVIEW B, 1998, 58 (05) :2684-2691
[7]  
KANAMORI J, 1960, J APPL PHYS, V31, P14
[8]   Low-field magnetic properties of La1-xCaxMnO3 (0 ≤ x ≤ 0.4) [J].
Laiho, R ;
Lisunov, KG ;
Lähderanta, E ;
Petrenko, P ;
Stamov, VN ;
Zakhvalinskii, VS .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2000, 213 (03) :271-277
[9]   Structural and magnetic properties of the colossal magnetoresistance perovskite La0.85Ca0.15MnO3 [J].
Lobanov, MV ;
Balagurov, AM ;
Pomjakushin, VJ ;
Fischer, P ;
Gutmann, M ;
Abakumov, AM ;
D'yachenko, OG ;
Antipov, EV ;
Lebedev, OI ;
Van Tendeloo, G .
PHYSICAL REVIEW B, 2000, 61 (13) :8941-8949
[10]   Structure, electron-transport properties, and giant magnetoresistance of hole-doped LaMnO3 systems [J].
Mahendiran, R ;
Tiwary, SK ;
Raychaudhuri, AK ;
Ramakrishnan, TV ;
Mahesh, R ;
Rangavittal, N ;
Rao, CNR .
PHYSICAL REVIEW B, 1996, 53 (06) :3348-3358