A comparative study of thermoelectric properties in (Pr,Y)Ba2Cu3O7 and PrBa2Cu3O7-Ag percolative systems

被引：1
作者：
Mori, Natsuki [1 ]
Okano, Hiroyuki [1 ]
Furuya, Akio [1 ]
机构：
[1] Oyama Natl Coll Technol, Dept Elect & Comp Engn, Oyama, Tochigi 3230806, Japan
来源：
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE | 2006年 / 203卷 / 11期
关键词：
NORMAL-STATE PROPERTIES; BI2SR2CA1-XPRXCU2OY SYSTEM; POWER; SUPERCONDUCTIVITY; TRANSPORT; Y1-XPRXBA2CU3OY; RESISTIVITY; COMPOSITES; BEHAVIOR; PHASE;
D O I：
10.1002/pssa.200669591
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Measurements of the temperature-dependent thermoelectric power S(T) and resistivity p(7) were performed to characterize two kinds of polycrystalline systems (Pr1-xYx)Ba2CU3O7 and Ag-doped PrBa2Cu3O7, each of which exhibits percolative behaviour at a certain doping level. At room temperature, Jonker plots of the thermoelectric power against logarithm of the conductivity in both systems show a similar tendency that two different fitting lines are intercrossed at the percolation thresholds. The p(T) behaviour below 100 K in each system with low dopant content obeys the variable-range-hopping conduction. Variations of S(T) in both systems could be reconciled with the Boson-Fermion theory based on the resonating-valence-bond model with reasonable dependences of fitting parameters upon doping. (c) 2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码：2828 / 2831
页数：4
相关论文
共 21 条
  • [1] Resistivity and thermoelectric power of Bi2Sr2Ca1-xPrxCu2Oy system
    Chen, XH
    Li, TF
    Yu, M
    Ruan, KQ
    Wang, CY
    Cao, LZ
    [J]. PHYSICA C, 1997, 290 (3-4): : 317 - 322
  • [2] HOPPING CONDUCTIVITY IN FULLY OXYGENATED PRBA2CU3OY, YBA2CU2COOY, AND PRBA2CU2COOY
    FISHER, B
    GENOSSAR, J
    PATLAGAN, L
    REISNER, GM
    SUBRAMANIAM, CK
    KAISER, AB
    [J]. PHYSICAL REVIEW B, 1994, 50 (06): : 4118 - 4124
  • [3] Analysis of the possible reasons for the suppression of superconductivity in the Y1-xPrxBa2Cu3Oy system on the basis of thermoelectric power data
    Gasumyants, VE
    Vladimirskaya, EV
    Patrina, IB
    [J]. PHYSICS OF THE SOLID STATE, 1997, 39 (09) : 1352 - 1357
  • [4] THE ELECTRON-TRANSPORT PHENOMENA IN Y-BASED HTSCS AND THEIR ANALYSIS ON THE BASIS OF PHENOMENOLOGICAL NARROW-BAND THEORY - THE BAND-STRUCTURE TRANSFORMATION WITH OXYGEN-CONTENT AND SUBSTITUTION FOR CU
    GASUMYANTS, VE
    KAIDANOV, VI
    VLADIMIRSKAYA, EV
    [J]. PHYSICA C, 1995, 248 (3-4): : 255 - 275
  • [5] THERMOELECTRIC-POWER OF THE (EU,CE)4(BA,EU)4CU6OY PHASE AND THE T-STAR PHASE - COMPARISON BETWEEN SUPERCONDUCTING AND NONSUPERCONDUCTING COMPOUNDS
    IKEGAWA, S
    WADA, T
    YAMASHITA, T
    ICHINOSE, A
    MATSUURA, K
    KUBO, K
    YAMAUCHI, H
    TANAKA, S
    [J]. PHYSICAL REVIEW B, 1991, 43 (13): : 11508 - 11511
  • [6] T-EXPONENT IN THE PRBA2CU3O7-AG PERCOLATION SYSTEM
    LIN, JJ
    [J]. PHYSICAL REVIEW B, 1991, 44 (02): : 789 - 794
  • [7] ELECTRICAL TRANSPORT AND SUPERCONDUCTIVITY IN THE AU-BI2SR1.8CA1.2CU2OY COMPOSITE SYSTEM
    LIN, WY
    LIN, JJ
    CHEN, TM
    [J]. JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 1992, 31 (2B): : L151 - L153
  • [8] EXTRAORDINARY BEHAVIOR OF THE Y1-XPRXBA2CU3O7-DELTA SYSTEM
    MAPLE, MB
    ALMASAN, CC
    SEAMAN, CL
    HAN, SH
    YOSHIARA, K
    BUCHGEISTER, M
    PAULIUS, LM
    LEE, BW
    GAJEWSKI, DA
    JARDIM, RF
    FINCHER, CR
    BLANCHET, GB
    GUERTIN, RP
    [J]. JOURNAL OF SUPERCONDUCTIVITY, 1994, 7 (01): : 97 - 106
  • [9] Thermoelectric power and resistivity in Nd2-xCexCuO4 system
    Mori, N
    Kameyama, T
    Enomoto, H
    Ozaki, H
    Takano, Y
    Sekizawa, K
    [J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2006, 408 : 1222 - 1225
  • [10] Characterization of Au-YBa2Cu3O7-y composites by paraconductivity analysis with a short-wavelength cutoff
    Mori, N
    Satoh, H
    [J]. PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2003, 392 : 613 - 618
123