TY - JOUR

T1 - Transport processes in fluoride crystals under high pressure

AU - Murin, I. V.

AU - Glumov, O. V.

AU - Gunsser, W.

AU - Karus, M.

PY - 1995/12/1

Y1 - 1995/12/1

N2 - The effect of hydrostatic pressure on the ionic conductivities in β -PbF2 /3-Pbi_xM™F2+(m_2)x (where Mm = Na+, Cd+2, Tb+3, U+4), LaF3 and La1_xCaxF3-x has been investigated in the temperature range between 300 K and 700 K for pressures up to 0.25 GPa (for β -PbF2) and 0.8 GPa (for LaF3). The activation volumes of defect formation and migration, impurity defect segregation and dissociation were determined from the effect of pressure on the conductivity. Keyes' treatment based on the strain energy Zener model in Griienisen approximation was used to estimate theoretical values of activation volumes.

AB - The effect of hydrostatic pressure on the ionic conductivities in β -PbF2 /3-Pbi_xM™F2+(m_2)x (where Mm = Na+, Cd+2, Tb+3, U+4), LaF3 and La1_xCaxF3-x has been investigated in the temperature range between 300 K and 700 K for pressures up to 0.25 GPa (for β -PbF2) and 0.8 GPa (for LaF3). The activation volumes of defect formation and migration, impurity defect segregation and dissociation were determined from the effect of pressure on the conductivity. Keyes' treatment based on the strain energy Zener model in Griienisen approximation was used to estimate theoretical values of activation volumes.

KW - activation volumes

KW - fluorides

KW - high pressure technique

KW - superionic conductors

UR - http://www.scopus.com/inward/record.url?scp=0029487450&partnerID=8YFLogxK

U2 - 10.1080/10420159508222730

DO - 10.1080/10420159508222730

M3 - Article

AN - SCOPUS:0029487450

VL - 137

SP - 251

EP - 254

JO - Radiation Effects and Defects in Solids

JF - Radiation Effects and Defects in Solids

SN - 1042-0150

IS - 1-4

ER -