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Full-Text Articles in Physics
Nuclear-Magnetic-Resonance Study Of Co2+ In Cds, David C. Look, Donald R. Locker
Nuclear-Magnetic-Resonance Study Of Co2+ In Cds, David C. Look, Donald R. Locker
Physics Faculty Publications
Nuclear spin-lattice relaxation times, T1, have been measured over a temperature range T=(1.1-300) °K and frequency range ν=2-15 MHz in a single crystal of CdS doped with 13-ppm cobalt. Minima in T1 vs T are observed, and absolute values of the effective electron relaxation time, τe, may be calculated at the temperatures of the minima, e.g., at 14 °K, τe=8.0×10-8 sec. At low temperatures, T≲5 °K, τe is dominated by a resonant Orbach process involving the two ground-state Kramers doublets (S=±3/2 and S=±1/2) which, according to our measurements, are split by …
Nuclear-Magnetic-Resonance Measurement Of The Conduction-Electron G Factor In Cdte, David C. Look, D. L. Moore
Nuclear-Magnetic-Resonance Measurement Of The Conduction-Electron G Factor In Cdte, David C. Look, D. L. Moore
Physics Faculty Publications
The effective g factor g* of conduction electrons in degenerate CdTe has been determined by using measurements of the Cd113 nuclear spin-lattice relaxation time T1 and the Knight shift K. It is shown that the magnitude of g* is given by the Korringa product T1TK2=C(g*)2, where C is a known constant and T is the absolute temperature, and that the sign of g* is given by the sign of K for a spherically symmetric conduction band. The measured value, g*=-1.1±0.1, is within the range allowed …