New polymorphism for BaTi(IO3)6 with two polymorphs crystallizing in the same space group

2020 ◽  
Vol 49 (25) ◽  
pp. 8443-8447 ◽  
Author(s):  
Zhen Qian ◽  
Hongping Wu ◽  
Hongwei Yu ◽  
Zhanggui Hu ◽  
Jiyang Wang ◽  
...  
Keyword(s):  
Phase Transition ◽  
Order Phase Transition ◽  
Powder Xrd ◽  
Space Group ◽  
First Order ◽  
First Order Phase Transition ◽  
First Order Phase

New polymorphic α- and β-BaTi(IO3)6 have been synthesized. They crystallize in the same space group and exhibit similar structures, but the powder XRD and crystal morphologies show their phase transition belongs to the first-order phase transition.

scholarly journals Gravitational wave signals of dark matter freeze-out

2021 ◽  
Vol 2021 (2) ◽  
Author(s):  
Danny Marfatia ◽  
Po-Yan Tseng
Keyword(s):  
Phase Transition ◽  
Dark Matter ◽  
Gravitational Waves ◽  
Order Phase Transition ◽  
First Order ◽  
Stochastic Background ◽  
First Order Phase Transition ◽  
Relic Abundance ◽  
First Order Phase ◽  
Freeze Out

Abstract We study the stochastic background of gravitational waves which accompany the sudden freeze-out of dark matter triggered by a cosmological first order phase transition that endows dark matter with mass. We consider models that produce the measured dark matter relic abundance via (1) bubble filtering, and (2) inflation and reheating, and show that gravitational waves from these mechanisms are detectable at future interferometers.

Discovering a First-Order Phase Transition in the Li–CeO2 System

Nano Letters ◽  
2017 ◽  
Vol 17 (2) ◽  
pp. 1282-1288 ◽  
Author(s):  
Kaikai Li ◽  
Xiaoye Zhou ◽  
Anmin Nie ◽  
Sheng Sun ◽  
Yan-Bing He ◽  
...  
Keyword(s):  
Phase Transition ◽  
Order Phase Transition ◽  
First Order ◽  
First Order Phase Transition ◽  
First Order Phase

scholarly journals Vortex-antivortex pair production in a first order phase transition

1997 ◽  
Vol 56 (4) ◽  
pp. 2035-2043 ◽  
Author(s):  
Sanatan Digal ◽  
Supratim Sengupta ◽  
Ajit M. Srivastava
Keyword(s):  
Phase Transition ◽  
Pair Production ◽  
Order Phase Transition ◽  
First Order ◽  
First Order Phase Transition ◽  
First Order Phase
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