The effect of the annealing temperature on the local distortion of La0.67Ca0.33MnO3 thin films

被引：0
|
作者：
Cao, DL [1 ]
Bridges, F
Booth, C
Worledge, D
机构：
[1] Univ Calif Santa Cruz, Dept Phys, Santa Cruz, CA 95064 USA
[2] Los Alamos Natl Lab, Los Alamos, NM 87545 USA
[3] Stanford Univ, Dept Appl Phys, Stanford, CA 94305 USA
来源：
JOURNAL OF SYNCHROTRON RADIATION | 1999年 / 6卷
关键词：
XAFS; thin film; CMR;
D O I：
10.1107/S0909049599000953
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
The colossal magnetoresistance (MR) of the La1-xCaxMnO3 system has been studied extensively. From our previous studies, we find there is an important connection between local distortions and magnetism in these materials. Recently, we have carried out Mn K-edge fluorescence experiments with thin film samples (3000 Angstrom) of La0.67Ca0.33MnO3: one is as-deposited; another one is post-annealed at 1200 K. We find that the local distortion decreases with increasing the annealing temperature. For measurements as a function of temperature, the change of the local distortion is largest for the 1200 K annealed sample. The small change for the as-deposited sample, which has the highest MR, indicates that another mechanism contributes.
引用
收藏
页码：682 / 684
页数：3
相关论文
共 50 条
  • [41] Interrelation between the magnetic properties and microstructure of thin La0.67Ca0.33MnO3 films
    Nosov, A.P.
    Vasil'ev, V.G.
    Vladimirova, E.V.
    Fizika Metallov i Metallovedenie, 2004, 98 (01): : 38 - 43
  • [42] Modification of Electrical Properties of Thin La0.67Ca0.33MnO3 Films by Pulsed Thermocycling
    Anisimovas, Fiodoras
    Asmontas, Steponas
    Gradauskas, Jonas
    Kiprijanovic, Oleg
    Vengalis, Bonifacas
    MATERIALS SCIENCE-MEDZIAGOTYRA, 2012, 18 (03): : 215 - 219
  • [43] Transport properties of La0.67Ca0.33MnO3
    Bai, SN
    Chen, YY
    Yao, YD
    Chen, LH
    Lin, SH
    Liou, Y
    CHINESE JOURNAL OF PHYSICS, 1996, 34 (03) : 798 - 803
  • [44] Effect of sintering temperature on electrical transport properties of La0.67Ca0.33MnO3
    Venkataiah, G
    Krishna, DC
    Vithal, M
    Rao, SS
    Bhat, SV
    Prasad, V
    Subramanyam, SV
    Reddy, PV
    PHYSICA B-CONDENSED MATTER, 2005, 357 (3-4) : 370 - 379
  • [45] Electrical transport effects in the epitaxial La0.67Ca0.33MnO3 films and La0.67Ca0.33MnO3/(LaNiO3, RuO2) heterostructures
    Vengalis, B
    Oginskis, AK
    Lisauskas, V
    Shiktorov, N
    Jasutis, V
    Karpinskas, SA
    Cesnys, A
    Maneikis, A
    ULTRAFAST PHENOMENA IN SEMICONDUCTORS, 1999, 297-2 : 303 - 306
  • [46] Direct measurement of the magnetocaloric effect in La0.67Ca0.33MnO3
    Lin, GC
    Wei, Q
    Zhang, JX
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2006, 300 (02) : 392 - 396
  • [47] Anomaly of Hall effect in magnetoresistive La0.67Ca0.33MnO3
    Cao, XW
    Fang, J
    Wang, ZH
    Li, KB
    APPLIED PHYSICS LETTERS, 1999, 75 (21) : 3372 - 3374
  • [48] Magnetotransport properties of La0.67Ca0.33MnO3/La0.67Sr0.33MnO3 bilayers
    Feng, JF
    Zhao, K
    Huang, YH
    Zhao, JG
    Han, XF
    Zhan, WS
    Wong, HK
    CHINESE PHYSICS, 2005, 14 (09): : 1879 - 1881
  • [49] Prediction of thermomagnetic properties of La0.67Ca0.33MnO3 and La0.67Sr0.33MnO3
    Hamad, Mahmoud Aly
    PHASE TRANSITIONS, 2012, 85 (1-2) : 106 - 112
  • [50] Magnetoelastic coupling and magnetic anisotropy in La0.67Ca0.33MnO3 films
    O'Donnell, J
    Rzchowski, MS
    Eckstein, JN
    Bozovic, I
    APPLIED PHYSICS LETTERS, 1998, 72 (14) : 1775 - 1777
12345