Thermoelectric Properties in Spark Plasma Sintered La0.7Sr0.3Mn0.5Co0.5O3

被引：4
|
作者：
Kumar, Ashutosh [1 ]
Kumari, Karuna [1 ]
Sivaprahasam, D. [2 ]
Thakur, Ajay D. [1 ]
机构：
[1] Indian Inst Technol Patna, Dept Phys, Bihta 801106, India
[2] ARCI, Ctr Automot Energy Mat, IITM Res Pk, Chennai 600133, Tamil Nadu, India
来源：
3RD INTERNATIONAL CONFERENCE ON CONDENSED MATTER & APPLIED PHYSICS (ICC-2019) | 2020年 / 2220卷
关键词：
SPIN-STATE TRANSITION;
D O I：
10.1063/5.0001334
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
LaCoO3 shows interesting thermoelectric properties due to the existence of different charge states along with different spin states of cobalt in the system. Substitution at La and Co site leads to tune the electrical conductivity and hence Seebeck coefficient. We show that spark plasma sintered (SPS) La0.7Sr0.3Mn0.5Co0.5O3 sample shows an increase in the value of electrical conductivity at higher temperature with nominal decrease in the Seebeck coefficient. This improves the figure of merit for La0.7Sr0.3Mn0.5Co0.5O3 polycrystalline sample at 800 K. The maximum figure of merit for SPS La0.7Sr0.3Mn0.5Co0.5O3 is 0.006 at 800 K.
引用
收藏
页数：4
相关论文
共 50 条
  • [1] Structure and magnetic order in La0.7Ca0.3Mn0.5Co0.5O 3 and La0.8Sr0.2Mn0.5Co0.5O 3 perovskites
    NCSR, IMS, Demokritos, 15310 Aghia Paraskevi, Attiki, 153 10 Athens, Greece
    不详
    不详
    不详
    [J]. Phys B Condens Matter, 2008, 17 (2924-2929):
  • [2] Cation uniformity and magnetic properties of La0.7Sr0.3Mn0.5Fe0.5O3 thin films
    Gu, Meng
    Yang, Fan
    Arenholz, Elke
    Browning, Nigel D.
    Takamura, Yayoi
    [J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2013, 325 : 69 - 74
  • [3] Structural and electrical properties of La0.7Sr0.3Co0.5Fe0.5O3 powders synthesized by solid state reaction
    da Corte, Rodrigo V.
    da Conceicao, Leandro
    Souza, Mariana M. V. M.
    [J]. CERAMICS INTERNATIONAL, 2013, 39 (07) : 7975 - 7982
  • [4] Structural and Magnetic Properties of La0.7Sr0.3Mn1-xCrxO3 (x ≤ 0.5)
    Creel, Thomas F.
    Yang, Jinbo B.
    Kahveci, Mehmet
    Lamsal, Jagat
    Malik, S. K.
    Quezado, Sylvio
    Pringle, Oran A.
    Yelon, William B.
    James, William J.
    [J]. IEEE TRANSACTIONS ON MAGNETICS, 2010, 46 (06) : 1832 - 1835
  • [5] Crystal structure, magnetic properties and conductivity mechanisms of La0.7Ca0.3Mn0.5Fe0.5O3
    Dang, N. T.
    Zakhvalinskii, V. S.
    Kozlenko, D. P.
    Nekrasova, Yu. S.
    The-Long Phan
    Ta Thu Thang
    Kichanov, S. E.
    Thanh, T. D.
    Savenko, B. N.
    Khiem, L. H.
    Taran, S. V.
    Jabarov, S. G.
    [J]. FERROELECTRICS, 2016, 501 (01) : 129 - 144
  • [6] Magnetic pair making and breaking effect of Ru in La0.7Sr0.3Mn0.9Ru0.1O3 and La0.5Sr0.5Co0.9Ru0.1O3
    Singh, B
    Sahu, RK
    Manoharan, SS
    Dörr, K
    Müller, KH
    [J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2004, 270 (03) : 358 - 363
  • [7] Characterisation of the reduction properties of La0.5Sr0.5Fe0.5Co0.5O3
    Berry, F. J.
    Gancedo, J. R.
    Marco, J. F.
    Ren, X.
    [J]. HYPERFINE INTERACTIONS, 2005, 166 (1-4): : 449 - 453
  • [8] Fabrication of La0.7Sr0.3MnO3/La0.5Sr0.5CoO3/La0.7Sr0.3MnO3 heterostructures for spin valve applications
    Robson, MC
    Ogale, SB
    Godfrey, R
    Venkatesan, T
    Johnson, M
    Ramesh, R
    [J]. SCIENCE AND TECHNOLOGY OF MAGNETIC OXIDES, 1998, 494 : 243 - 248
  • [9] Characterisation of the reduction properties of La0.5Sr0.5Fe0.5Co0.5O3
    F. J. Berry
    J. R. Gancedo
    J. F. Marco
    X. Ren
    [J]. Hyperfine Interactions, 2005, 166 : 449 - 453
  • [10] MAGNETIC AND TRANSPORT PROPERTIES OF Pr0.7Sr0.3MnO3/La0.5Ca0.5MnO3/Pr0.7Sr0.3MnO3 TRILAYERS
    Wang, H. O.
    Dai, P.
    Liu, H.
    Tan, W. S.
    Xu, F.
    Wu, X. S.
    Jia, Q. J.
    Hu, G. J.
    Gao, J.
    [J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 2012, 26 (23):
12345