Origin of constant loss in ionic conductors.
作者： C León , A Rivera , A Várez , J Sanz , J Santamaria
DOI: 10.1103/PHYSREVLETT.86.1279
关键词:
摘要: We have analyzed the constant loss contribution to ac conductivity in frequency range 10 Hz-1 MHz and temperatures down 8 K, for two Li ionic conductors, one crystalline (Li(0.18)La(0.61)TiO(3)) other glassy (61SiO(2);35Li(2)O.3Al(2)O3.P(2)O(5)). As temperature is increased a crossover observed from nearly fractional power law dependence of conductivity. At any fixed omega, this occurs at T such that omega approximately nu(0)exp(-E(m)/k(B)T), where nu(0) attempt E(m) identified with barrier Li+ ions leave their wells.
harvard.edu
tu-dortmund.de 
sci-hub.se 参考文章(30)
Thomas B. Schrøder, Jeppe C. Dyre, Scaling and universality of ac conduction in disordered solids Physical Review Letters. ,vol. 84, pp. 310- 313 ,(2000) , 10.1103/PHYSREVLETT.84.310
A. Ghosh, A. Pan, Scaling of the conductivity spectra in ionic glasses: dependence on the structure Physical Review Letters. ,vol. 84, pp. 2188- 2190 ,(2000) , 10.1103/PHYSREVLETT.84.2188
W. K. Lee, J. F. Liu, A. S. Nowick, Limiting behavior of ac conductivity in ionically conducting crystals and glasses: A new universality. Physical Review Letters. ,vol. 67, pp. 1559- 1561 ,(1991) , 10.1103/PHYSREVLETT.67.1559
K.L. Ngai, H. Jain, O. Kanert, Physical origins of the ω1.0-dependent and the ωq-dependent (q ≈ 1.3) contributions to the conductivity relaxation of glassy ionic conductors Journal of Non-crystalline Solids. ,vol. 222, pp. 383- 390 ,(1997) , 10.1016/S0022-3093(97)90140-X
Carlos León Yebra, María Luisa Lucía Mulas, Jacobo Santamaría Sánchez-Barriga, Correlated ion hopping in single-crystal yttria-stabilized zirconia Physical Review B. ,vol. 55, pp. 882- 887 ,(1997) , 10.1103/PHYSREVB.55.882
A Nowick, Identification of distinctive regimes of behaviour in the ac electrical response of glasses Solid State Ionics. ,vol. 105, pp. 121- 128 ,(1998) , 10.1016/S0167-2738(97)00457-8
D. L. Sidebottom, P. F. Green, R. K. Brow, Two contributions to the ac conductivity of alkali oxide glasses. Physical Review Letters. ,vol. 74, pp. 5068- 5071 ,(1995) , 10.1103/PHYSREVLETT.74.5068
H. Jain, X. Lu, Is there a mixed alkali effect in the low temperature ac conductivity of glasses? Journal of Non-Crystalline Solids. ,vol. 196, pp. 285- 290 ,(1996) , 10.1016/0022-3093(95)00601-X
F. Borsa, D. R. Torgeson, S. W. Martin, H. K. Patel, Relaxation and fluctuations in glassy fast-ion conductors: Wide-frequency-range NMR and conductivity measurements Physical Review B. ,vol. 46, pp. 795- 800 ,(1992) , 10.1103/PHYSREVB.46.795
Thomas Schreiber, Determination of the noise level of chaotic time series Physical Review E. ,vol. 48, ,(1993) , 10.1103/PHYSREVE.48.R13