Quantum lifetime of two-dimensional holes

Solid State Communications

Volumn 143, Issue 8-9, 2007, Pages 365-368

  Eisenstein, J P ^a   Syphers, D ^a,b   Pfeiffer, L N ^c   West, K W ^c  

^a CALIFORNIA INSTITUTE OF TECHNOLOGY   (United States)

^b BOWDOIN COLLEGE   (United States)

^c LUCENT TECHNOLOGIES   (United States)

Author keywords

D. Holes; D. Quantum lifetime; D. Tunneling

Indexed keywords

HOLE SPECTRAL FUNCTIONS; QUANTUM LIFETIME; TUNNELING SPECTROSCOPY;

FERMI LIQUIDS; IMPURITIES; LOW TEMPERATURE EFFECTS; SEMICONDUCTING ALUMINUM COMPOUNDS; SEMICONDUCTING GALLIUM ARSENIDE; SPECTROSCOPIC ANALYSIS;

SEMICONDUCTOR QUANTUM WELLS;

EID: 34447632039     PISSN: 00381098     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.ssc.2007.06.010     Document Type: Article

References (18)

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4. There have been recent suggestions of new phases between the electron liquid and Wigner crystal. See. Spivak B., and Kivelson S.A. Phys. Rev. B 70 (2004) 155114
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9. The density is determined by observing the Shubnikov-de Haas-like oscillations of the peak tunnel conductance induced by a perpendicular magnetic field.
10. F.
11. μ = 0.008 meV. In contrast, the B ≈ 0.25 T onset of magneto-oscillations of the tunneling conductance suggests h{stroke} / τ ≈ 0.13 meV, close to the low temperature limiting value of the tunneling spectral width Γ.
12. Das Sarma S., and Stern F. Phys. Rev. B 32 (1985) 8442
13. By T = 4 K the average acoustic phonon wavevector exceeds the diameter of the 2DHS Fermi sea. Thus, unlike elastic scattering off of the static disorder potential, inelastic hole-phonon scattering events occur at all angles.
14. Eisenstein J.P., Stormer H.L., Narayanamurti V., Gossard A.C., and Wiegmann W. Phys. Rev. Lett. 53 (1984) 2579
15. Zhu H., et al. Solid State Commun. 141 (2007) 510
16. Imbalance was created using the gate on the back surface of the sample. The induced density change was thus primarily in the lower 2DHS layer, although finite compressibility effects led to a smaller change in the top layer as well. The individual 2DHS densities are readily measured via the Hall effect in each layer.
17. At low temperatures the tunneling linewidth was found to be independent of density.
18. s is much less, or much greater, than unity.