TY - JOUR
T1 - Conductance relaxation in the electron glass
T2 - Microwave versus infrared response
AU - Ovadyahu, Z.
PY - 2009/5/18
Y1 - 2009/5/18
N2 - We study the time-dependent conductance of electron glasses excited by electromagnetic radiation at microwave and infrared frequencies. In either case, the conductance G is enhanced during exposure, but its time dependence after the radiation is turned off is qualitatively different depending on the frequency. For comparison, results of excitation produced by a gate voltage and temperature changes are also shown. The glassy nature of the system allows us to demonstrate that the microwave-enhanced conductance is not due to heating. These findings are discussed in terms of an energy Ec that characterizes the equilibrium charge distribution of the electron glass.
AB - We study the time-dependent conductance of electron glasses excited by electromagnetic radiation at microwave and infrared frequencies. In either case, the conductance G is enhanced during exposure, but its time dependence after the radiation is turned off is qualitatively different depending on the frequency. For comparison, results of excitation produced by a gate voltage and temperature changes are also shown. The glassy nature of the system allows us to demonstrate that the microwave-enhanced conductance is not due to heating. These findings are discussed in terms of an energy Ec that characterizes the equilibrium charge distribution of the electron glass.
UR - http://www.scopus.com/inward/record.url?scp=66049093378&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.102.206601
DO - 10.1103/PhysRevLett.102.206601
M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???
AN - SCOPUS:66049093378
SN - 0031-9007
VL - 102
JO - Physical Review Letters
JF - Physical Review Letters
IS - 20
M1 - 206601
ER -