scholarly journals First-order structural transition and pressure-induced lattice/phonon anomalies in Sr2IrO4

2018 ◽  
Vol 98 (9) ◽  
Author(s):  
K. Samanta ◽  
F. M. Ardito ◽  
N. M. Souza-Neto ◽  
E. Granado
Keyword(s):  
Structural Transition ◽  
First Order ◽  
Lattice Phonon

First-order magnetic transition induced by structural transition in hexagonal structure

2020 ◽  
Vol 494 ◽  
pp. 165821
Author(s):  
Chaocheng Liu ◽  
Xucai Kan ◽  
Xiansong Liu ◽  
Shuangjiu Feng ◽  
Jiyu Hu ◽  
...  
Keyword(s):  
Structural Transition ◽  
Magnetic Transition ◽  
Hexagonal Structure ◽  
First Order

Structural and Electronic Transitions in AgReO4 Under Pressure

1990 ◽  
Vol 210 ◽  
Author(s):  
John K. Vassiliou ◽  
Jens W. Otto ◽  
Richard F. Porter ◽  
Arthur L. Ruoff
Keyword(s):  
Optical Transmission ◽  
Diamond Anvil Cell ◽  
Structural Transition ◽  
Energy Gap ◽  
Considerable Change ◽  
X Ray ◽  
First Order ◽  
First Order Phase Transition ◽  
Diamond Anvil ◽  
First Order Phase

AbstractThe behavior of AgReO4 under pressure has been studied in a diamond anvil cell. The equation of state determined by synchrotron radiation shows considerable change in compressibility with increasing pressure. X-ray and Raman scattering show a first-order phase transition from the scheelite to an as yet undetermined structure at 13 GPa. Changes in both the internal and external Raman active modes suggest a change in Re coordination. Optical transmission experiments demonstrate that the energy gap in the scheelitephase decreases at the rate of 75 meV/GPa. There is a small jump in the energy gap at 13 GPa, probably related to the structural transition. AgReO4 remains aninsulator to at least 47 GPa.

Structure Transition and Electrocaloric Effect of Pb(Zr1-xTix)O3 at High Field

2013 ◽  
Vol 432 ◽  
pp. 3-6
Author(s):  
Wen Jiang Feng ◽  
Zhi Guo Zhang ◽  
Chuang Wu ◽  
Hao Chen
Keyword(s):  
High Temperature ◽  
Transition Temperature ◽  
Electric Field ◽  
High Field ◽  
Structural Transition ◽  
Strong Electric Field ◽  
Zero Field ◽  
Electrocaloric Effect ◽  
Structure Transition ◽  
First Order

We investigated the structure transition and the electrocaloric effect in PbZr1-xTixO3 (PZT) with x=0.7, 0.8 and 0.9. The results show that 50 MV/m can make the structural transition be a continuous one. When x=0.7, 0.8 and 0.9 at the zero field, the first order structural transition occurs at T0=685, 687, and 698 K, respectively. Upon a strong electric field, the first order structural transition comes to the second one, which leads to lower the change of specific heat. The structural transition temperature is shifted at high temperature with increasing electric field. The maximum electrocaloric effect is present occurs at about 200 K above the corresponding Curie temperature. With increasing composition of Ti, the electrocaloric effect is enlarged, together with increasing structure transition temperatures.

scholarly journals First-order structural transition in the magnetically ordered phase of Fe1.13Te

2011 ◽  
Vol 84 (17) ◽  
Author(s):  
S. Rößler ◽  
Dona Cherian ◽  
W. Lorenz ◽  
M. Doerr ◽  
C. Koz ◽  
...  
Keyword(s):  
Structural Transition ◽  
First Order ◽  
Magnetically Ordered

scholarly journals From first-order magneto-elastic to magneto-structural transition in (Mn,Fe)1.95P0.50Si0.50 compounds

2011 ◽  
Vol 99 (9) ◽  
pp. 092511 ◽  
Author(s):  
N. H. Dung ◽  
L. Zhang ◽  
Z. Q. Ou ◽  
E. Brück
Keyword(s):  
Structural Transition ◽  
First Order

scholarly journals First order magneto-structural transition in functional magnetic materials: phase-coexistence and metastability

2006 ◽  
Vol 29 (6) ◽  
pp. 623-631 ◽  
Author(s):  
SB Roy ◽  
MK Chattopadhyay ◽  
MA Manekar ◽  
KJS Sokhey ◽  
P Chaddah
Keyword(s):  
Magnetic Materials ◽  
Structural Transition ◽  
Phase Coexistence ◽  
First Order

A first-order antiferromagnetic-paramagnetic transition induced by structural transition in GeNCr3

2016 ◽  
Vol 108 (3) ◽  
pp. 031906 ◽  
Author(s):  
L. Zu ◽  
S. Lin ◽  
Y. Liu ◽  
J. C. Lin ◽  
B. Yuan ◽  
...  
Keyword(s):  
Structural Transition ◽  
First Order
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