INFLUENCE OF GRAIN-BOUNDARY SCATTERING ON THE TRANSPORT-PROPERTIES OF A HIGH-TC OXIDE SUPERCONDUCTOR

被引：46

作者：

CARRINGTON, A

COOPER, JR

机构：

[1] IRC in Superconductivity, University of Cambridge, Cambridge, CB3 0HE, Madingley Road

来源：

PHYSICA C | 1994年 / 219卷 / 1-2期

关键词：

D O I：

10.1016/0921-4534(94)90023-X

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report measurements of the resistivity (rho(T)), Hall coefficient (R(H)), thermoelectric power (S) and AC susceptibility of a polycrystalline sample of Co-doped YBa2Cu3O7 in which the grain-boundary resistance could be drastically altered without affecting the properties of the individual grains. Our results show that although the shape and magnitude of rho(T) are strongly changed by the increase in grain-boundary scattering, there is no corresponding effect in either the thermoelectric power or the Hall coefficient. These results suggest that measurements of the temperature dependence of R(H) and S made on stoichiometric polycrystalline samples should accurately reflect those of the grains.

引用

收藏

页码：119 / 122

页数：4

相关论文

共 15 条

[1] TEMPERATURE-DEPENDENCE OF THE HALL ANGLE IN SINGLE-CRYSTAL YBA2(CU1-XCOX)3O7-DELTA [J].

CARRINGTON, A ;

MACKENZIE, AP ;

LIN, CT ;

COOPER, JR .

PHYSICAL REVIEW LETTERS, 1992, 69 (19) :2855-2858

[2]

CARRINGTON A, 1993, UNPUB PHYS REV B

[3] DETERMINATION OF THE MAGNETIC-FIELD PENETRATION DEPTH IN SUPERCONDUCTING YTTRIUM BARIUM COPPER-OXIDE - DEVIATIONS FROM THE BARDEEN-COOPER-SCHRIEFFER LAWS [J].

COOPER, JR ;

CHU, CT ;

ZHOU, LW ;

DUNN, B ;

GRUNER, G .

PHYSICAL REVIEW B, 1988, 37 (01) :638-641

[4] EVIDENCE FOR MATTHIESSEN RULE IN THE NORMAL STATE RESISTIVITY OF ZINC DOPED YTTRIUM BARIUM COPPER-OXIDE [J].

COOPER, JR ;

OBERTELLI, SD ;

FREEMAN, PA ;

ZHENG, DN ;

LORAM, JW ;

LIANG, WY .

SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 1991, 4 :S277-S279

[5] EFFECT OF OXYGEN DEPLETION ON THE TRANSPORT-PROPERTIES OF YBA2CU3O7-DELTA [J].

COOPER, JR ;

OBERTELLI, SD ;

CARRINGTON, A ;

LORAM, JW .

PHYSICAL REVIEW B, 1991, 44 (21) :12086-12089

[6]

GOLDFARB RB, 1992, MAGNETIC SUSCEPTIBIL

[7] EXPERIMENTAL TEST OF THE T2 LAW FOR THE HALL ANGLE FROM TC TO 500-K IN OXYGEN-REDUCED YBA2CU3O6+X CRYSTALS [J].

HARRIS, JM ;

YAN, YF ;

ONG, NP .

PHYSICAL REVIEW B, 1992, 46 (21) :14293-14296

[8] SYSTEMATIC DEVIATION FROM T-LINEAR BEHAVIOR IN THE INPLANE RESISTIVITY OF YBA2CU3O7-Y - EVIDENCE FOR DOMINANT SPIN SCATTERING [J].

ITO, T ;

TAKENAKA, K ;

UCHIDA, S .

PHYSICAL REVIEW LETTERS, 1993, 70 (25) :3995-3998

[9] SYSTEMATICS IN THE THERMOELECTRIC-POWER OF HIGH-TC OXIDES [J].

OBERTELLI, SD ;

COOPER, JR ;

TALLON, JL .

PHYSICAL REVIEW B, 1992, 46 (22) :14928-14931

[10] TEMPERATURE-DEPENDENT MAGNETIC PENETRATION DEPTH OF CO AND ZN DOPED YBA2CU3O7 OBTAINED FROM THE AC SUSCEPTIBILITY OF MAGNETICALLY ALIGNED POWDERS [J].

PORCH, A ;

COOPER, JR ;

ZHENG, DN ;

WALDRAM, JR ;

CAMPBELL, AM ;

FREEMAN, PA .

PHYSICA C, 1993, 214 (3-4) :350-358