Suppression of inelastic electron-electron scattering in anderson insulators |
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Authors: | Ovadyahu Z |
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Institution: | Racah Institute of Physics, The Hebrew University, Jerusalem 91904, Israel. |
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Abstract: | We report on measurements of absorption from applied ac fields in Anderson-localized indium-oxide films. The absorption shows a roll-off at a frequency that is much smaller than the electron-electron scattering rate measured at the same temperature in diffusive samples of this material. These results are interpreted as evidence for discreteness of the energy spectrum. |
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