HIGH-TEMPERATURE CROSSOVER IN PARACONDUCTIVITY OF GRANULAR Y1BA2CU3O7-Y

被引:22
作者
AUSLOOS, M
GILLET, F
LAURENT, C
CLIPPE, P
机构
[1] UNIV LIEGE, INST ELECT MONTEFIORE B28, B-4000 LIEGE, BELGIUM
[2] UNIV LIEGE, INST PHYS, B-4000 LIEGE, BELGIUM
来源
ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER | 1991年 / 84卷 / 01期
关键词
D O I
10.1007/BF01453753
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
We have examined the deviation from linearity of the temperature dependence of the electrical resistivity of a YBaCuO ceramics. We have observed at high temperature a crossover behavior toward a logarithmic temperature dependence at lower temperature. It seems relevant to attribute the origin of such a term to a pair breaking mechanism contribution, thus to give a lower bound to the existence of superconductivity fluctuations onset temperature. Our findings also implies that carriers are bosons above T(c).
引用
收藏
页码:13 / 16
页数:4
相关论文
共 35 条
[1]   CRITICAL-POINT STATISTICAL-ANALYSIS OF TBZN ELECTRICAL-RESISTIVITY TEMPERATURE DERIVATIVE [J].
AMADO, MM ;
PINTO, RP ;
MOREIRA, JM ;
BRAGA, ME ;
SOUSA, JB ;
MORIN, P ;
CLIPPE, P ;
AUSLOOS, M .
SOLID STATE COMMUNICATIONS, 1988, 65 (11) :1429-1433
[2]  
ASLAMAZOV LG, 1968, FIZ TVERD TELA, V10, P875
[3]  
Ausloos M., 1988, Modern Physics Letters B, V2, P1319, DOI 10.1142/S0217984988001314
[4]   PROBING CONDUCTIVITY FLUCTUATIONS IN HIGH CRITICAL-TEMPERATURE SUPERCONDUCTORS [J].
AUSLOOS, M ;
CLIPPE, P ;
LAURENT, C .
SOLID STATE COMMUNICATIONS, 1990, 73 (02) :137-141
[5]   THERMODYNAMIC FLUCTUATIONS IN THE SUPERCONDUCTOR Y1BA2CU3O9-Y - EVIDENCE FOR TWO-DIMENSIONAL SUPERCONDUCTIVITY [J].
AUSLOOS, M ;
LAURENT, C .
PHYSICAL REVIEW B, 1988, 37 (01) :611-614
[6]   SUPERCONDUCTIVITY FLUCTUATIONS IN BI(PB) BASED GRANULAR CERAMICS SUPERCONDUCTORS - EVIDENCE FOR FRACTAL BEHAVIOR [J].
AUSLOOS, M ;
LAURENT, C ;
PATAPIS, SK ;
POLITIS, C ;
LUO, HL ;
GODELAINE, PA ;
GILLET, F ;
DANG, A ;
CLOOTS, R .
ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1991, 83 (03) :355-359
[7]   BIVARIATE STATISTICAL-ANALYSIS OF DATA NEAR A CRITICAL-POINT - THE CASE OF THE SINGULAR BEHAVIOR OF THE ELECTRICAL-RESISTIVITY TEMPERATURE DERIVATIVE [J].
AUSLOOS, M .
JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 1989, 22 (06) :593-609
[8]   POSSIBLE HIGH-TC SUPERCONDUCTIVITY IN THE BA-LA-CU-O SYSTEM [J].
BEDNORZ, JG ;
MULLER, KA .
ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1986, 64 (02) :189-193
[9]   PHASE-TRANSFORMATION AT 240-K IN YBA2CU3O7-X BY MEASUREMENTS OF ELASTIC ENERGY-DISSIPATION AND MODULUS AND ITS POSSIBLE RELATION WITH THE ENHANCEMENT OF TC ABOVE 100-K [J].
CANNELLI, G ;
CANTELLI, R ;
CORDERO, F ;
COSTA, GA ;
FERRETTI, M ;
OLCESE, GL .
EUROPHYSICS LETTERS, 1988, 6 (03) :271-276
[10]   STRUCTURAL ANOMALIES AT THE DISAPPEARANCE OF SUPERCONDUCTIVITY IN BA2YCU3O7-DELTA - EVIDENCE FOR CHARGE-TRANSFER FROM CHAINS TO PLANES [J].
CAVA, RJ ;
BATLOGG, B ;
RABE, KM ;
RIETMAN, EA ;
GALLAGHER, PK ;
RUPP, LW .
PHYSICA C, 1988, 156 (04) :523-527