UNIVERSAL CURRENT SCALING IN THE CRITICAL REGION OF A 2-DIMENSIONAL SUPERCONDUCTING PHASE-TRANSITION

被引:63
作者
WOLF, SA [1 ]
GUBSER, DU [1 ]
IMRY, Y [1 ]
机构
[1] TEL AVIV UNIV,RAMAT AVIV,ISRAEL
关键词
D O I
10.1103/PhysRevLett.42.324
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The transition to a superconducting state in ultrathin (∼30 granular niobium nitride is found to obey scaling laws characteristic of critical regions near phase transitions. Dynamic scaling of voltage with current is theoretically suggested in analogy with magnetic phase transitions and is experimentally demonstrated. A universal function of current and temperature involving two independent critical exponents is generated. © 1979 The American Physical Society.
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页码:324 / 327
页数:4
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