Heat capacity of PMN near an electric-field-induced phase transition

JETP Letters ◽  
2007 ◽  
Vol 85 (6) ◽  
pp. 283-285 ◽  
Author(s):  
M. V. Gorev ◽  
V. S. Bondarev ◽  
K. S. Aleksandrov
Keyword(s):  
Phase Transition ◽  
Heat Capacity ◽  
Electric Field

Anomalies in thermal expansion and heat capacity of TmB50 at low temperatures: magnetic phase transition and crystal electric field effect

2016 ◽  
Vol 45 (43) ◽  
pp. 17447-17452 ◽  
Author(s):  
V. V. Novikov ◽  
N. A. Zhemoedov ◽  
N. V. Mitroshenkov ◽  
A. V. Matovnikov
Keyword(s):  
Phase Transition ◽  
Heat Capacity ◽  
Thermal Expansion ◽  
Electric Field ◽  
Magnetic Phase Transition ◽  
Low Temperatures ◽  
Field Effect ◽  
Magnetic Phase ◽  
Electric Field Effect ◽  
Crystal Electric Field

We experimentally study the heat capacity and thermal expansion of thulium boride (TmB50) at temperatures of 2–300 K.

The thermodynamics of the divalent metal fluorides. I. Heat capacity of lead tetrafluorostannate, PbSnF4, from 10.3 to 352 K

1988 ◽  
Vol 66 (4) ◽  
pp. 549-552 ◽  
Author(s):  
Jane E. Callanan ◽  
Ron D. Weir ◽  
Edgar F. Westrum Jr.
Keyword(s):  
Phase Transition ◽  
Heat Capacity ◽  
Thermodynamic Functions ◽  
Adiabatic Calorimetry ◽  
Temperature Limit ◽  
Divalent Metal ◽  
Ion Conductor ◽  
Metal Fluorides ◽  
Fast Ion Conductor ◽  
Fast Ion

We have measured the heat capacity of the fast ion conductor PbSnF4 at 10.3 < T < 352 K by adiabatic calorimetry. Our results show anomalous values in the Cp,m in the region 300 < T < 352 K. These are associated with the α–β crystallographic transition reported at 353 K. Because the upper temperature limit of our cryostat is around 354 K, it was impossible to follow the phase transition to completion. A more subtle anomaly in the Cp,m was detected between 130 and 160 K. Standard molar thermodynamic functions are presented at selected temperatures from 5 to 350 K.

Electric field induced phase transition in first order ferroelectrics with large zero point energy

2008 ◽  
Vol 387 (1) ◽  
pp. 115-122 ◽  
Author(s):  
C.L. Wang ◽  
J.C. Li ◽  
M.L. Zhao ◽  
J.L. Zhang ◽  
W.L. Zhong ◽  
...  
Keyword(s):  
Phase Transition ◽  
Electric Field ◽  
Zero Point ◽  
Zero Point Energy ◽  
Point Energy ◽  
First Order

PRELIMINARY OPTICAL STUDY ON ER FLUIDS

1994 ◽  
Vol 08 (20n21) ◽  
pp. 2921-2933 ◽  
Author(s):  
L. W. ZHOU ◽  
J. F. YE ◽  
R. B. TAO ◽  
Y. TANG ◽  
J. F. PENG ◽  
...  
Keyword(s):  
Phase Transition ◽  
Electric Field ◽  
Electric Fields ◽  
Nonlinear Optical ◽  
Second Harmonic ◽  
Optical Response ◽  
Optical Study ◽  
Solid States ◽  
Linear And Nonlinear ◽  
Er Fluids

Linear and nonlinear optical study on electrorheological (ER) fluids is reported. The ER fluids under the investigation were glass beads, zeolite and ferroelectrics. The linear optical response of some ER fluids showed sharp changes near critical electric fields. An enhancement of electric field induced second harmonic generations (EFISH) was observed as the function of E2, where E is the external electric field. The said enhancement is considered to be corresponding to a modulation of the material's refractive index associated with the electric field induced polarization of the delocalized electrons. The enhanced nonlinear optical response on the transition between liquid and solid states can be related to the phase transition in ER fluids.

scholarly journals Revealing the mechanism of electric-field-induced phase transition in antiferroelectric NaNbO3 by in situ high-energy x-ray diffraction

2021 ◽  
Vol 118 (13) ◽  
pp. 132903
Author(s):  
Mao-Hua Zhang ◽  
Changhao Zhao ◽  
Lovro Fulanović ◽  
Jürgen Rödel ◽  
Nikola Novak ◽  
...  
Keyword(s):  
Phase Transition ◽  
Electric Field ◽  
High Energy ◽  
X Ray Diffraction ◽  
X Ray

Heat Capacity in α-β Phase Transition of Quartz

1985 ◽  
Vol 54 (2) ◽  
pp. 625-629 ◽  
Author(s):  
Masahide Matsuura ◽  
Haruhiko Yao ◽  
Kazutoshi Gouhara ◽  
Ichiro Hatta ◽  
Norio Kato
Keyword(s):  
Phase Transition ◽  
Heat Capacity ◽  
Β Phase
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