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Electron Spin-Lattice Relaxation of doped Yb3+ ions in YBa2Cu3Ox
The electron spin-lattice relaxation (SLR) times T1 of Yb3+‡ ions were
measured from the temperature dependence of electron spin resonance linewidth
in Y0.99Yb0.01Ba2Cu3Ox with different oxygen contents. Raman relaxation
processes dominate the electron SLR. Derived from the temperature dependence of
the SLR rate, the Debye temperature (Td) increases with the critical
temperature Tc and oxygen content x. Keywords: EPR; ESR; Electron spin-lattice
relaxation; Debye temperature; Critical temperatureComment: 5 Pages 4 Figure