Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Correlation-function spectroscopy of inelastic lifetime in heavily doped GaAs heterostructures
AU - Konemann, J
AU - Konig, P
AU - Schmidt, T
AU - McCann, E
AU - Falko, Vladimir
AU - Haug, R J
PY - 2001/10/15
Y1 - 2001/10/15
N2 - Measurements of resonant tunneling through a localized impurity state are used to probe fluctuations in the local density of states of heavily doped GaAs. The measured differential conductance is analyzed in terms of correlation functions with respect to voltage. A qualitative picture based on the scaling theory of Thouless is developed to relate the observed fluctuations to the statistics of single-particle wave functions. In a quantitative theory correlation functions are calculated. By comparing the experimental and theoretical correlation functions, the effective dimensionality of the emitter is analyzed and the dependence of the inelastic lifetime on energy is extracted.
AB - Measurements of resonant tunneling through a localized impurity state are used to probe fluctuations in the local density of states of heavily doped GaAs. The measured differential conductance is analyzed in terms of correlation functions with respect to voltage. A qualitative picture based on the scaling theory of Thouless is developed to relate the observed fluctuations to the statistics of single-particle wave functions. In a quantitative theory correlation functions are calculated. By comparing the experimental and theoretical correlation functions, the effective dimensionality of the emitter is analyzed and the dependence of the inelastic lifetime on energy is extracted.
U2 - 10.1103/PhysRevB.64.155314
DO - 10.1103/PhysRevB.64.155314
M3 - Journal article
VL - 64
SP - -
JO - Physical review B
JF - Physical review B
SN - 0163-1829
IS - 15
M1 - 155314
ER -