1.
Science
; 287(5453): 633-6, 2000 Jan 28.
Article
in English
| MEDLINE
| ID: mdl-10649993
ABSTRACT
Temperature (T)- and frequency (omega)-dependent conductivity measurements are reported here in amorphous niobium-silicon alloys with compositions (x) near the zero-temperature metal-insulator transition. There is a one-to-one correspondence between the frequency- and temperature-dependent conductivity on both sides of the critical concentration, thus establishing the quantum-critical nature of the transition. The analysis of the conductivity leads to a universal scaling function and establishes the critical exponents. This scaling can be described by an x-, T-, and omega-dependent characteristic length, the form of which is derived by experiment.
2.
Phys Rev B Condens Matter
; 50(4): 2606-2621, 1994 Jul 15.
Article
in English
| MEDLINE
| ID: mdl-9976483
3.
Phys Rev B Condens Matter
; 48(7): 4503-4515, 1993 Aug 15.
Article
in English
| MEDLINE
| ID: mdl-10008929
4.
Phys Rev B Condens Matter
; 46(23): 15538-15541, 1992 Dec 15.
Article
in English
| MEDLINE
| ID: mdl-10003684
5.
6.
7.
Phys Rev B Condens Matter
; 39(4): 2377-2390, 1989 Feb 01.
Article
in English
| MEDLINE
| ID: mdl-9948476
8.
Phys Rev B Condens Matter
; 39(1): 785-788, 1989 Jan 01.
Article
in English
| MEDLINE
| ID: mdl-9947232
9.
Phys Rev B Condens Matter
; 38(1): 63-73, 1988 Jul 01.
Article
in English
| MEDLINE
| ID: mdl-9945164
10.
Phys Rev B Condens Matter
; 37(16): 9726-9729, 1988 Jun 01.
Article
in English
| MEDLINE
| ID: mdl-9944365
11.