High-pressure structure of praseodymium revisited: In search of a uniform structural phase sequence for the lanthanide elements
High-pressure structure of praseodymium revisited: In search of a uniform structural phase sequence for the lanthanide elements
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重新审视镨的高压结构:寻找镧系元素的均匀结构相序
DOI:
10.1103/physrevb.105.174104
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发表时间:
2022
影响因子:
3.7
通讯作者:
Finnegan S
中科院分区:
文献类型:
--
作者:
Finnegan S
Angle-dispersive x-ray powder diffraction experiments have been performed on praseodymium metal to a pressure of 205 GPa. Between 20 and 165 GPa only the(-uranium) phase is observed, in agreement with previous studies. At 171(5) GPa we find a transition to a tetragonalphase which is isostructural with the high-pressure post-phase seen in the neighboring lanthanide cerium above 12 GPa, and with the high-pressure phase of the actinide thorium seen above 100 GPa. Electronic structure calculations determine thetransition to occur at 130 GPa at 0 K, but find another phase, with the(simple hexagonal) structure, to have a lower enthalpy than both theandstructures above 20 GPa at 0 K.
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DOI:
--
发表时间:
1985
期刊:
影响因子:
--
作者:
J. Olsen;S. Steenstrup;L. Gerward
通讯作者:
L. Gerward
影响因子:
2
作者:
T. Krüger;B. Merkau;W. A. Grosshans;W. Holzapfel
通讯作者:
W. Holzapfel
DOI:
--
发表时间:
--
期刊:
Physica B (発表予定)
影响因子:
--
作者:
N.Tateiwa;N.Tateiwa;T.Kawae;Y.Yoshida;N.Tateiwa
通讯作者:
N.Tateiwa
DOI:
--
发表时间:
1993
期刊:
影响因子:
--
作者:
Y. Vohra
通讯作者:
Y. Vohra
DOI:
--
发表时间:
1983
期刊:
影响因子:
--
作者:
W. A. Grosshans;Y. Vohra;W. Holzapfel
通讯作者:
W. Holzapfel