Anomalous insulating state induced by parallel magnetic field in ultrathin bismuth films

K. H Sarwa B Tan, Kevin A. Parendo, A. M. Goldman

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Recent investigations of the magnetic-field induced insulator in two-dimensional superconducting systems suggest that unexpected physics occurs. However, direct comparisons with the intrinsic insulator have not been possible, nor have most experiments studied the effects of parallel magnetic fields. We have applied parallel magnetic fields to an insulating, amorphous Bi film, which exhibited Mott variable range hopping in the absence of field. We have also applied fields to an insulating film in which superconductivity was induced by electrostatic electron doping. Comparison of these magnetic-field induced insulators with the intrinsic insulator reveals the appearance of an anomalous insulating phase at low temperatures.

Original languageEnglish (US)
Title of host publicationLOW TEMPERATURE PHYSICS
Subtitle of host publication24th International Conference on Low Temperature Physics - LT24
Pages951-952
Number of pages2
DOIs
StatePublished - Dec 1 2006
EventLOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24 - Orlando, FL, United States
Duration: Aug 10 2006Oct 17 2006

Publication series

NameAIP Conference Proceedings
Volume850
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

OtherLOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24
CountryUnited States
CityOrlando, FL
Period8/10/0610/17/06

Keywords

  • Insulator
  • Parallel magnetic field
  • Superconductor

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