scholarly journals Experimental Observation of a Possible First-Order Phase Transition below the Superconducting Transition Temperature in the Multilayer Cuprate Superconductor HgBa2Ca4Cu5Oy

2014 ◽  
Vol 83 (7) ◽  
pp. 074705 ◽  
Author(s):  
Yasumoto Tanaka ◽  
Akira Iyo ◽  
Satoshi Itoh ◽  
Kazuyasu Tokiwa ◽  
Taichiro Nishio ◽  
...  
Keyword(s):  
Phase Transition ◽  
Transition Temperature ◽  
Experimental Observation ◽  
Order Phase Transition ◽  
Superconducting Transition Temperature ◽  
Cuprate Superconductor ◽  
Superconducting Transition ◽  
First Order ◽  
First Order Phase Transition ◽  
First Order Phase

Size-dependent ultrahigh electrocaloric effect near pseudo-first-order phase transition temperature in barium titanate nanoparticles

RSC Advances ◽  
2015 ◽  
Vol 5 (47) ◽  
pp. 37476-37484 ◽  
Author(s):  
Hong-Hui Wu ◽  
Jiaming Zhu ◽  
Tong-Yi Zhang
Keyword(s):  
Phase Transition ◽  
Transition Temperature ◽  
Order Phase Transition ◽  
Electrocaloric Effect ◽  
First Order ◽  
Size Dependent ◽  
First Order Phase Transition ◽  
Pseudo First Order ◽  
Barium Titanate Nanoparticles ◽  
First Order Phase

The proposed Pseudo-First-Order Phase Transition in a ferroelectric nanoparticle occurs at a temperature lower than its paraelectric/ferroelectric transition Curie temperature and is associated with an ultrahigh electrocaloric effect.

SPECIFIC HEAT IN MONO-CRYSTAL YBCO: λ-LIKE ANOMALIES AT 90K AND 229K

1988 ◽  
Vol 02 (05) ◽  
pp. 1171-1183 ◽  
Author(s):  
K. Fossheim ◽  
O. M. Nes ◽  
T. Lægreid ◽  
C. N. W Darlington ◽  
D. A. O'Connor ◽  
...  
Keyword(s):  
Phase Transition ◽  
Specific Heat ◽  
High Precision ◽  
Order Phase Transition ◽  
Ybco Superconductor ◽  
Superconducting Transition ◽  
First Order ◽  
Temperature Range ◽  
First Order Phase Transition ◽  
First Order Phase

The specific heat, C p , has been measured with high precision in a mono-crystal of YBa 2 Cu 3 O 7−δ (YBCO) superconductor in the temperature range 55K-300K. The measurements provide data with a relative resolution Δ C p / C p of approximately 5 · 10−4. The main conclusions are: 1) Close to the superconducting transition the specific heat shows influence of fluctuations. 2) A reversible second order or weakly first order phase transition is found to occur at T o = 229 K .

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
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