Specific heat at high temperature and magnetic measurements in Nd0.5Sr0.5MnO3 and R0.5Ca0.5MnO3 (R = Nd, Sm, Dy and Ho) samples

被引：5
|
作者：
López, J [1 ]
de Lima, OF [1 ]
机构：
[1] Univ Estadual Campinas, UNICAMP, Inst Fis Gleb Wataghin, BR-13083970 Campinas, SP, Brazil
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2004年 / 369卷 / 1-2期
关键词：
magnetically ordered materials; calorimetry;
D O I：
10.1016/j.jallcom.2003.09.053
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
We have made a magnetic and specific heat characterization of five manganese samples. Ferromagnetic, antiferromagnetic and charge ordering transitions in our samples agree with previous reports. Each specific heat curve was successfully fitted at high temperatures by an Einstein model with three optical phonon modes. Close to the charge ordering and ferromagnetic transition temperatures the specific heat curves showed peaks superposed to the characteristic response of the lattice oscillations. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码：227 / 230
页数：4
相关论文
共 50 条
  • [1] Specific heat and magnetic properties of Nd0.5Sr0.5MnO3 and R0.5Ca0.5MnO3 (R=Nd, Sm, Dy, and Ho)
    López, J
    de Lima, OF
    JOURNAL OF APPLIED PHYSICS, 2003, 94 (07) : 4395 - 4399
  • [2] Analysis of low temperature specific heat in Nd0.5Sr0.5MnO3 and R0.5Ca0.5MnO3 (R = Nd, Sm, Dy and Ho) compounds
    Choithrani, Renu
    Gaur, N. K.
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2008, 320 (24) : 3384 - 3389
  • [3] Specific heat at low temperatures and magnetic measurements in Nd0.5Sr0.5MnO3 and R0.5Ca0.5MnO3 (R=Nd, Sm, Dy, and Ho) samples -: art. no. 214402
    López, J
    de Lima, OF
    Lisboa, PN
    Araujo-Moreira, FM
    PHYSICAL REVIEW B, 2002, 66 (21) : 1 - 7
  • [4] Study of magnetic and specific heat measurements at low temperatures in Nd0.5Sr0.5MnO3, Nd0.5Ca0.5MnO3
    López, J
    Lisboa, PN
    de Lima, OF
    Araujo-Moreira, FM
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2002, 242 : 683 - 685
  • [5] Ultrasonic and magnetic studies of Nd0.5Sr0.5MnO3
    Zvyagin, S
    Schwenk, H
    Lüthi, B
    Kamenev, KV
    Balakrishnan, G
    Paul, DM
    Kamenev, VI
    Pashkevich, YG
    PHYSICAL REVIEW B, 2000, 62 (10): : R6104 - R6107
  • [6] FTIR spectroscopic insights into the bonding structural properties of Nd0.5Ca0.5MnO3, Nd0.5Sr0.5MnO3, and Pr0.5Ca0.5MnO3
    Hakhverdiyeva, Z. E.
    Jabarov, S. H.
    Huseynov, E. M.
    Huseynov, R. E.
    Trukhanov, S. V.
    Trukhanov, A. V.
    Aliyev, Y. I.
    SOLID STATE COMMUNICATIONS, 2024, 391
  • [7] Ultrasonic investigation of Nd0.5Sr0.5MnO3
    Zvyagin, S
    Schwenk, H
    Lüthi, B
    Kamenev, KV
    Paul, DM
    Balakrishnan, G
    Kamenev, VI
    Pashkevich, YG
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2001, 226 : 882 - 883
  • [8] Magnetic and transport properties of nanocrystalline Nd0.5Sr0.5MnO3
    Biswas, Anis
    Das, I.
    JOURNAL OF APPLIED PHYSICS, 2007, 102 (06)
  • [9] Magnetic relaxation behavior in La0.5Ca0.5MnO3 and Nd0.5Sr0.5MnO3 -: art. no. 224422
    López, J
    Lisboa, PN
    Passos, WAC
    Ortiz, WA
    Araujo-Moreira, FM
    de Lima, OF
    Schaniel, D
    Ghosh, K
    PHYSICAL REVIEW B, 2001, 63 (22): : 2244221 - 2244229
  • [10] Ultrasonic study of the Nd0.5Sr0.5MnO3 manganite
    Zheng, RK
    Huang, RX
    Tang, AN
    Li, G
    Li, XG
    Xie, JQ
    JOURNAL OF ALLOYS AND COMPOUNDS, 2002, 345 (1-2) : 68 - 71
12345