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Document type:
Zeitschriftenaufsatz 
Author(s):
Waffenschmidt, S.; Pfleiderer, C.; v. L̈ohneysen, H. 
Title:
Critical {{Behavior}} of the {{Conductivity}} of {{Si}}:{{P}} at the {{Metal}}-{{Insulator Transition}} under {{Uniaxial Stress}} 
Abstract:
We report new measurements of the electrical conductivity $\sigma$ of the canonical three-dimensional metal-insulator system Si:P under uniaxial stress S. The zero-temperature extrapolation of $\sigma$(S,T$̊ightarrow$0)$\sim$|S-Sc|$\mu$ shows an unprecedently sharp onset of finite conductivity at Sc with an exponent $\mu$=1. The value of $\mu$ differs significantly from that of earlier stress-tuning results. Our data show dynamic $\sigma$(S,T) scaling on both metallic and insulating sides, viz....    »
 
Journal title:
Physical Review Letters 
Year:
1999 
Journal volume:
83 
Month:
oct 
Journal issue:
15 
Pages contribution:
3005