NMR measurements of the quasi-one-dimensional superconductor under high pressure using a modified Bridgman anvil cell

2007 ◽  
Vol 310 (2) ◽  
pp. 1110-1112 ◽  
Author(s):  
Tomokazu Kozuka ◽  
Masayuki Itoh ◽  
Nao Takeshita ◽  
Chieko Terakura ◽  
Touru Yamauchi ◽  
...  
Keyword(s):  
High Pressure ◽  
Bridgman Anvil ◽  
One Dimensional

A time-dependent model for high-pressure discharges in narrow ablative capillaries

1993 ◽  
Vol 50 (1) ◽  
pp. 51-70 ◽  
Author(s):  
D. Zoler ◽  
S. Cuperman ◽  
J. Ashkenazy ◽  
M. Caner ◽  
Z. Kaplan
Keyword(s):  
High Pressure ◽  
Equation Of State ◽  
Time Dependent ◽  
Dimensional Model ◽  
Plasma Sources ◽  
One Dimensional ◽  
Space And Time ◽  
Dependent Model ◽  
Energy Equations ◽  
Time Dependent Model

A time-dependent quasi-one-dimensional model is developed for studying high- pressure discharges in ablative capillaries used, for example, as plasma sources in electrothermal launchers. The main features of the model are (i) consideration of ablation effects in each of the continuity, momentum and energy equations; (ii) use of a non-ideal equation of state; and (iii) consideration of space- and time-dependent ionization.

Intermolecular Interactions of Xe Atoms Confined in One-dimensional Nanochannels of Tris(o-phenylenedioxy)cyclotriphosphazene as Studied by High-pressure 129Xe NMR

2003 ◽  
Vol 58 (12) ◽  
pp. 727-734 ◽  
Author(s):  
Hirokazu Kobayashi ◽  
Takahiro Ueda ◽  
Keisuke Miyakubo ◽  
Taro Eguchi
Keyword(s):  
High Pressure ◽  
Nmr Spectroscopy ◽  
Chemical Shift ◽  
Pressure Dependence ◽  
Average Distance ◽  
Chemical Shift Tensor ◽  
Axially Symmetric ◽  
One Dimensional ◽  
129Xe Nmr ◽  
The One

The pressure dependence of the 129Xe chemical shift tensor confined in the Tris(o-phenylenedioxy) cyclotriphosphazene (TPP) nanochannel was investigated by high-pressure 129Xe NMR spectroscopy. The observed 129Xe spectrum in the one-dimensional TPP nanochannel (0.45 nm in diameter) exhibits a powder pattern broadened by an axially symmetric chemical shift tensor. As the pressure increases from 0.02 to 7.0 MPa, a deshielding of 90 ppm is observed for the perpendicularcomponent of the chemical shift tensor δ⊥, whereas a deshielding of about 30 ppm is observed for the parallel one, δ‖. This suggests that the components of the chemical shift tensor, δ‖ and δ⊥, are mainly dominated by the Xe-wall and Xe-Xe interaction, respectively. Furthermore, the effect of helium, which is present along with xenon gas, on the 129Xe chemical shift is examined in detail. The average distance between the Xe atoms in the nanochannel is estimated to be 0.54 nm. This was found by using δ⊥ at the saturated pressure of xenon, and comparing the increment of the chemicalshift value in δ⊥ to that of a β -phenol/Xe compound.

Compressibility and High-Pressure Electrical Resistivity of One-Dimensional Phthalocyanine Conductors: The Relationship with d-π Charge Transfer

1997 ◽  
Vol 296 (1) ◽  
pp. 255-268 ◽  
Author(s):  
Toshihiro Hiejima ◽  
Kyuya Yakushi ◽  
Takafumi Adachi ◽  
Osamu Shimomura ◽  
Keiki Takeda ◽  
...  
Keyword(s):  
High Pressure ◽  
Electrical Resistivity ◽  
Charge Transfer ◽  
One Dimensional ◽  
The Relationship

High pressure X-ray diffraction and electrical resistance study of the quasi-one-dimensional sulfide InV6S8

2004 ◽  
Vol 132 (11) ◽  
pp. 731-736 ◽  
Author(s):  
Alka B. Garg ◽  
V. Vijayakumar ◽  
B.K. Godwal ◽  
T. Ohtani ◽  
B.R. Martin ◽  
...  
Keyword(s):  
High Pressure ◽  
Electrical Resistance ◽  
X Ray Diffraction ◽  
One Dimensional ◽  
X Ray

High Pressure Crystal Growth and Properties of Hg-Superconductors and Quasi-One-Dimensional Cuprates

1999 ◽  
pp. 21-26
Author(s):  
J. Karpinski ◽  
H. Schwer ◽  
R. Molinski ◽  
G. I. Meijer ◽  
E. Kopnin ◽  
...  
Keyword(s):  
High Pressure ◽  
Crystal Growth ◽  
One Dimensional

Phase Stability and Elastic Properties of оne Dimensional Long Period Structures of Al3Ti under High Pressure

2016 ◽  
Vol 850 ◽  
pp. 354-361
Author(s):  
Ping Ying Tang ◽  
Guo Hua Huang ◽  
Qing Lian Xie ◽  
Jin Li Huang
Keyword(s):  
Phase Transition ◽  
High Pressure ◽  
Elastic Properties ◽  
Phase Stability ◽  
Antiphase Boundary ◽  
First Principles Calculations ◽  
One Dimensional ◽  
Long Period ◽  
Phase Transition Pressure ◽  
Order Polynomial

Phase stability and elastic properties of seven one dimensional long period structures (1D-LPSs) of Al3Ti under high pressure have been systematically investigated by first-principles calculations. The enthalpy differences indicate that Al3Ti will undergo a phase transition from 1D-LPSs to L12 structure at high pressure. With increase of antiphase boundary period parameter M’, the enthalpy initially decreases and then increases, and the enthalpy for D023 is the smallest. Oppositely, the phase transition pressure firstly increases and then decreases, and the maximum is for D023. The elastic constants and elastic moduli B, G and E increase monotonically with increase of pressure, and the corresponding second-order polynomial fits are also obtained. Interestingly, the pressure dependence of Poisson’s ratio show similar tendency with that of B/G ratio. Both the B/G ratios and the Cauchy pressures reveal that these 1D-LPSs exhibit brittleness at high pressure.

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