scholarly journals EPR determination of three-dimensional correlations below the ferroelectric phase transition in pseudo-one-dimensional CsH2PO4:Cu2+

1986 ◽  
Vol 34 (9) ◽  
pp. 6532-6533 ◽  
Author(s):  
S. Waplak ◽  
V. Hugo Schmidt ◽  
John E. Drumheller
Keyword(s):  
Phase Transition ◽  
Ferroelectric Phase Transition ◽  
Ferroelectric Phase ◽  
Three Dimensional ◽  
One Dimensional

Exafs Studies of Semiconductors

1986 ◽  
Vol 77 ◽  
Author(s):  
Bruce A. Bunker
Keyword(s):  
Phase Transition ◽  
Ferroelectric Phase Transition ◽  
Ferroelectric Phase ◽  
Exafs Spectroscopy ◽  
Nondestructive Measurement ◽  
Bond Lengths ◽  
Fe Impurities

ABSTRACTRecent results from EXAFS spectroscopy are discussed, including (i) the determination of the site and local bond lengths of Fe impurities implanted into Si, (ii) the determination of the ferroelectric phase transition in Pb1−x Gex Te as order-disorder rather than displacive, and (iii) the nondestructive measurement of Aℓ diffusion into GaAs at an Aℓ/GaAs Interface.

Composite model of ferroelectric phase transition in the quasi-one-dimensional LHP crystal

2000 ◽  
Vol 28 (1-2) ◽  
pp. 1-10 ◽  
Author(s):  
A. V. Sapronova ◽  
K. Weron ◽  
A. P. Sukhorukov ◽  
G. I. Ovtchinnikova
Keyword(s):  
Phase Transition ◽  
Ferroelectric Phase Transition ◽  
Ferroelectric Phase ◽  
Composite Model ◽  
One Dimensional

Dielectric Study of the Ferroelectric Phase Transition in DMAGaS Crystal

1998 ◽  
Vol 53 (3-4) ◽  
pp. 105-111 ◽  
Author(s):  
R. Tchukvinskyi ◽  
R. Cach ◽  
Z. Czapla
Keyword(s):  
Phase Transition ◽  
Electric Field ◽  
Ferroelectric Phase Transition ◽  
Ferroelectric Phase ◽  
Paraelectric Phase ◽  
Dielectric Study ◽  
Electric Permittivity ◽  
First Order ◽  
Dc Electric Field

Abstract Electric permittivity measurments as functions of temperature at constant dc electric field and as functions of the dc electric field at constant temperatures in the paraelectric phase have been performed for DMAGaS crystal. The changes of the permittivity maximum with the electric field intensity evidence the first-order character of the ferroelectric phase transition at Tc1. The field dependence of the permittivity ε(E) in the paraelectric phase is discussed, using the classical electric equation of state. A method for the determination of the corresponding coefficients is proposed. The obtained B and C coefficients, together with double hysteresis loop observed above Tc1 prove the first-order character of the ferroelectric phase transition in DMAGaS crystal.

Sign in / Sign up

Export Citation Format

Share Document