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Spectroscopy of local density of states fluctuations in a disordered conductor

Research output: Contribution to journalJournal article


Journal publication date1/10/1996
Journal number1
Number of pages6
Original languageEnglish


The local density of states of a degenerate semiconductor is investigated at low magnetic fields by resonant tunneling through a discrete localized energy level. Mesoscopic fluctuations of the local density of states below the Fermi level are imaged as temperature-insensitive fine structure in the tunneling current. These fluctuations are attributed to quantum interference of diffusive electron waves in the three-dimensional disordered system.