ISSN:
1090-6487
Keywords:
76.60.Es
;
63.20.Kr
;
74.25.Kc
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract The spin-lattice relaxation times T 1 in Ba1−x KxBiO3 (x=0.3, 0.4, 0.5) were measured in the normal temperature range (20–300 K).A substantial contribution to the spin-lattice relaxation rate from dynamic local distortions of the crystal lattice near potassium atoms is found. The activation energy of this process increases with decreasing potassium concentration, and the frequency of lattice excitations decreases. The nature of the low-frequency lattice dynamics is discussed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1134/1.568178
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