Frequency scaling of microwave conductivity in the integer quantum Hall effect minima
Journal Article
·
· Physical Review B
We measure the longitudinal conductivity {sigma}{sub xx} at frequencies 1.246 GHz{<=}f{<=}10.05 GHz over a range of temperatures 235 mK{<=}T{<=}4.2 K with particular emphasis on the quantum Hall plateaus. We find that Re({sigma}{sub xx}) scales linearly with frequency for a range of magnetic field around the center of the plateaus, i.e., where {sigma}{sub xx}({omega})>>{sigma}{sub xx}{sup dc}. The width of this scaling region decreases with higher temperature and vanishes by 1.2 K altogether. Comparison between localization length determined from {sigma}{sub xx}({omega}) and dc measurements on the same wafer show good agreement.
- Sponsoring Organization:
- (US)
- OSTI ID:
- 40230906
- Journal Information:
- Physical Review B, Vol. 64, Issue 7; Other Information: DOI: 10.1103/PhysRevB.64.073310; Othernumber: PRBMDO000064000007073310000001; 099131PRB; PBD: 15 Aug 2001; ISSN 0163-1829
- Publisher:
- The American Physical Society
- Country of Publication:
- United States
- Language:
- English
Similar Records
Integer quantum Hall effect and correlated disorder
Optical and Hall conductivities of a thermally disordered two-dimensional spin-density wave : two-particle response in the pseudogap regime of electron-doped high-T{sub c} superconductors.
Anomalous Hall Effect in Three Ferromagnets: EuFe4Sb12, Yb14MnSb11, and Eu8Ga16Ge30
Journal Article
·
Thu Nov 15 00:00:00 EST 2007
· Semiconductors
·
OSTI ID:40230906
Optical and Hall conductivities of a thermally disordered two-dimensional spin-density wave : two-particle response in the pseudogap regime of electron-doped high-T{sub c} superconductors.
Journal Article
·
Fri Mar 18 00:00:00 EDT 2011
· Phys. Rev. B
·
OSTI ID:40230906
Anomalous Hall Effect in Three Ferromagnets: EuFe4Sb12, Yb14MnSb11, and Eu8Ga16Ge30
Journal Article
·
Sun Jan 01 00:00:00 EST 2006
· Physical Review B
·
OSTI ID:40230906
+1 more