scholarly journals Hydrostatic pressure study of the structural phase transitions and superconductivity in single crystals of (Ba 1− x K x )Fe 2 As 2 ( x =0 and 0.45) and CaFe 2 As 2

2009 ◽  
Vol 404 (19) ◽  
pp. 3223-3226 ◽  
Author(s):  
M.S. Torikachvili ◽  
S.L. Bud’ko ◽  
Ni Ni ◽  
P.C. Canfield
Keyword(s):  
Phase Transitions ◽  
Hydrostatic Pressure ◽  
Single Crystals ◽  
Structural Phase ◽  
Structural Phase Transitions

NQR study of the structural phase transitions in a system with reduced effective dimensionality: K2ReCl6

1983 ◽  
Vol 61 (10) ◽  
pp. 1374-1381 ◽  
Author(s):  
Marie D'Iorio ◽  
Robin L. Armstrong
Keyword(s):  
Fourier Transform ◽  
Phase Transitions ◽  
Hydrostatic Pressure ◽  
Magnetic Resonance ◽  
Structural Phase ◽  
Nonlinear Phenomena ◽  
Structural Phase Transitions ◽  
Quadrupole Resonance ◽  
Nuclear Quadrupole ◽  
Effective Dimensionality

Chlorine 35 nuclear quadrupole resonance (NQR) frequency and lineshape data, obtained with a Fourier transform magnetic resonance spectrometer, are presented for the antifluorite crystal K2ReCl6. In the temperature range investigated, 85 to 130 K, two structural phase transitions occur which reduce the crystal symmetry from cubic to tetragonal to monoclinic. The variation of the NQR spectrum with temperature and with hydrostatic pressure up to 2.64 kbar is documented. The structure of the spectrum and the intensity distribution within it are unexpected from previous studies of antifluorite systems. An explanation of the results is given which is based on recent discussions of nonlinear phenomena at phase transitions in crystals exhibiting reduced effective dimensionality.

Structural phase transitions in ‘hcp’ C70 single-crystals

1994 ◽  
Vol 95 (1) ◽  
pp. 67-71 ◽  
Author(s):  
Christoph Meingast ◽  
Frank Gugenberger ◽  
Georg Roth ◽  
Miro Haluška ◽  
Hans Kuzmany
Keyword(s):  
Phase Transitions ◽  
Single Crystals ◽  
Structural Phase ◽  
Structural Phase Transitions

Structural phase transitions in Rb3H(SeO4)2 single crystals

1988 ◽  
Vol 79 (1) ◽  
pp. 111-116 ◽  
Author(s):  
I. P. Mkarova ◽  
L. A. Shuvalov ◽  
V. I. Simonov
Keyword(s):  
Phase Transitions ◽  
Single Crystals ◽  
Structural Phase ◽  
Structural Phase Transitions

Exotic optoelectronic behaviors in CH3NH3PbCl3 perovskite single crystals: Co-existence of free and bound excitons with structural phase transitions

2021 ◽  
Vol 118 (14) ◽  
pp. 143301
Author(s):  
Hye Ri Jung ◽  
Maryam Bari ◽  
Yunae Cho ◽  
Yeon Soo Kim ◽  
Trang Thi Thu Nguyen ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Single Crystals ◽  
Structural Phase ◽  
Structural Phase Transitions
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