Observation of hysteretic magnetic phase transitions coupled with orientation motion of ions and dielectric relaxation in a one-dimensional nickel-bis-dithiolene molecule solid

2014 ◽  
Vol 43 (16) ◽  
pp. 6251-6261 ◽  
Author(s):  
Xuan-Rong Chen ◽  
Wei-Hua Ning ◽  
Hao Yang ◽  
Jian-Lan Liu ◽  
Fang Xuan ◽  
...  
Keyword(s):  
Phase Transitions ◽  
High Temperature ◽  
Dielectric Relaxation ◽  
Temperature Region ◽  
Magnetic Phase ◽  
Magnetic Transition ◽  
Magnetic Phase Transitions ◽  
Structural Transitions ◽  
High Temperature Region ◽  
One Dimensional

Step-wise orientation motions of ions results in two successive structural transitions, each one is associated with a hysteretic magnetic transition and dielectric relaxation occurs in the high temperature region.

Dodecahedron- and Bowl-Shaped Structures C20

1992 ◽  
Vol 270 ◽  
Author(s):  
Zdenék Slanina ◽  
Ludwik Adamowicz
Keyword(s):  
High Temperature ◽  
Temperature Region ◽  
Relative Stability ◽  
Three Dimensional ◽  
Two Dimensional ◽  
High Temperature Region ◽  
Relative Stabilities ◽  
One Dimensional ◽  
Very High ◽  
Quantumchemical Method

ABSTRACTPurely carbonaceous aggregates C20 have been studied by the AM1 quantumchemical method. In addition to one dodecahedron-shaped structure possessing C1 symmetry another three-dimensional species is revealed, viz. a bowl-shaped structureof C5v symmetry (and also one two-dimensional and two one-dimensional species). Temperature dependence of the relative stabilities of both three-dimensional structures is evaluated, showing that in the relevant temperature region the fullerenic species is prevailing. However, in a very high temperature region a relative-stability interchange has been predicted.

Two magnetic phase transitions in quasi-one-dimensional system SrCo2V2O8

2007 ◽  
Vol 141 (12) ◽  
pp. 667-670 ◽  
Author(s):  
Zhangzhen He ◽  
Tomoyasu Taniyama ◽  
Mitsuru Itoh ◽  
Jun-Ichi Yamaura ◽  
Yutaka Ueda
Keyword(s):  
Phase Transitions ◽  
Magnetic Phase ◽  
Magnetic Phase Transitions ◽  
Dimensional System ◽  
One Dimensional
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