Structure Determination of Monoclinic RbD 2 PO 4 in the High-Temperature Phase

2002 ◽  
Vol 269 (1) ◽  
pp. 273-278 ◽  
Author(s):  
Chikako Moriyoshi ◽  
Tsutomu Fujii ◽  
Kazuyuki Itoh ◽  
Masaru Komukae
Keyword(s):  
High Temperature ◽  
Structure Determination ◽  
High Temperature Phase ◽  
Temperature Phase

Revision of the Li–Si Phase Diagram: Discovery and Single-Crystal X-ray Structure Determination of the High-Temperature Phase Li4.11Si

2013 ◽  
Vol 25 (22) ◽  
pp. 4623-4632 ◽  
Author(s):  
Michael Zeilinger ◽  
Iryna M. Kurylyshyn ◽  
Ulrich Häussermann ◽  
Thomas F. Fässler
Keyword(s):  
Phase Diagram ◽  
High Temperature ◽  
Single Crystal ◽  
Structure Determination ◽  
High Temperature Phase ◽  
Temperature Phase ◽  
X Ray

scholarly journals The topological properties of QCD at high temperature: problems and perspectives

2018 ◽  
Vol 175 ◽  
pp. 01011 ◽  
Author(s):  
Claudio Bonati
Keyword(s):  
High Temperature ◽  
Difficult Problem ◽  
High Temperature Phase ◽  
Temperature Phase ◽  
First Principle ◽  
Numerical Determination ◽  
Topological Properties

Lattice computations are the only first principle method capable of quantitatively assessing the topological properties of QCD at high temperature, however the numerical determination of the topological properties of QCD, especially in the high temperature phase, is a notoriously difficult problem. We will discuss the difficulties encountered in such a computation and some strategies that have been proposed to avoid (or at least to alleviate) them.

Determination of high temperature phase relationships in (ZR,U) and (NB, U) mixed carbides

1993 ◽  
Author(s):  
Kathryn E. Carr ◽  
Robert P. Santandrea ◽  
Albert H. Bremser ◽  
Helen H. Moeller
Keyword(s):  
High Temperature ◽  
High Temperature Phase ◽  
Temperature Phase ◽  
Phase Relationships

Ab initio structure determination of the high-temperature phase of anhydrous caffeine by X-ray powder diffraction

2005 ◽  
Vol 61 (3) ◽  
pp. 329-334 ◽  
Author(s):  
Patrick Derollez ◽  
Natália T. Correia ◽  
Florence Danède ◽  
Frédéric Capet ◽  
Frédéric Affouard ◽  
...  
Keyword(s):  
High Temperature ◽  
Phase I ◽  
Metastable State ◽  
High Temperature Phase ◽  
Temperature Phase ◽  
X Ray Diffraction ◽  
Rietveld Refinements ◽  
X Ray ◽  
Ab Initio Structure

The high-temperature phase I of anhydrous caffeine was obtained by heating and annealing the purified commercial form II at 450 K. This phase I can be maintained at low temperature in a metastable state. A powder X-ray diffraction pattern was recorded at 278 K with a laboratory diffractometer equipped with an INEL curved position-sensitive detector CPS120. Phase I is dynamically orientationally disordered (the so-called plastic phase). The Rietveld refinements were achieved with rigid-body constraints. It was assumed that on each site, a molecule can adopt three preferential orientations with equal occupation probability. Under a deep undercooling of phase I, below 250 K, the metastable state enters in a glassy crystal state.

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