Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Electron-spin relaxation by tunneling states in. beta. -Al/sub 2/O/sub 3/:Na

Journal Article · · Phys. Rev. Lett.; (United States)
Spin relaxation measurements on a color center in the conduction plane of ..beta..-Al/sub 2/O/sub 3/:Na reveal an exceptionally fast rate with an anomalous temperature and microwave frequency dependence. The data are quantitatively described by a mechanism involving the coupling of a color center to the phonon-induced relaxation of a nearby localized two-level tunneling state. The required density of such states is nearly the same as that used to explain the low-temperature properties of ..beta..-Al/sub 2/O/sub 3/:Na.
Research Organization:
Department of Physics and Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801
OSTI ID:
6104440
Journal Information:
Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 42:26; ISSN PRLTA
Country of Publication:
United States
Language:
English