RT Journal Article
T1 Universal scaling of the conductivity relaxation in crystalline ionic conductors
A1 León Yebra, Carlos
A1 Lucía Mulas, María Luisa
A1 Santamaría Sánchez-Barriga, Jacobo
A1 Sánchez Quesada, Francisco
AB We present complex admittance measurements on single-crystal yttria-stabilized zirconia and polycrystalline Li_(0.5)La_(0.5)TiO_(3) over the frequency range 5 Hz to 30 MHz and at temperatures ranging between 150 and 650 K. Electric-field relaxation in both fast ionic conductors can be described using Kohlrausch-Williams-Watts decay functions, but departures are observed at high frequencies and low temperatures. Electric modulus data obey the Dixon Nagel scaling that has been proposed to be universal in describing the relaxation processes in supercooled liquids. Our data provide broader universality to the Dixon-Nagel scaling, and are interpreted in terms of the influence of mobile ions positional disorder on the relaxation dynamics.
PB American Physical Society
SN 0163-1829
YR 1998
FD 1998-01-01
LK https://hdl.handle.net/20.500.14352/59655
UL https://hdl.handle.net/20.500.14352/59655
LA eng
NO © 1998 The American Physical Society.
DS Docta Complutense
RD 2 oct 2025