High pressure studies of a new ternary actinide compound, UV2Al20

I. Halevy; E. Sterer; M. Aizenshtein; G. Kimmel; D. Regev; E. Yahel; L. C.J. Pereira; A. P. Goncalves

doi:10.1016/S0925-8388(01)00881-7

High pressure studies of a new ternary actinide compound, UV₂Al₂₀

I. Halevy, E. Sterer, M. Aizenshtein, G. Kimmel, D. Regev, E. Yahel, L. C.J. Pereira, A. P. Goncalves

Research output: Contribution to journal › Article › peer-review

22 Scopus citations

Abstract

A new uranium compound, UV₂Al₂₀, is reported. This CeCr₂Al₂₀-type structure compound (a=14.4775(5) Å) exhibits a large interatomic U-U distance, d_u-u=6.34 Å, well beyond the Hill limit. The morphology of this sample was examined by means of scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). The susceptibility obeys the Curie-Weiss law in the temperature range of 80-300 K, with μ_eff=2.3(3)μ_B/f.u. No magnetic transitions were detected down to 1.7 K, as was supported by the electrical resistivity measurements. The X-ray analysis determined that V/V₀=0.82 at 31.5 GPa with no crystallographic phase transition. The bulk modulus and the pressure derivative were derived as B₀=40(5) GPa and B′₀=17(2), respectively.

Original language	English
Pages (from-to)	19-21
Number of pages	3
Journal	Journal of Alloys and Compounds
Volume	319
Issue number	1-2
DOIs	https://doi.org/10.1016/S0925-8388(01)00881-7
State	Published - 26 Apr 2001
Externally published	Yes

Keywords

Aluminum
Crystallography
High pressure
Uranium
Vanadium

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/S0925-8388(01)00881-7

Cite this

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title = "High pressure studies of a new ternary actinide compound, UV2Al20",

abstract = "A new uranium compound, UV2Al20, is reported. This CeCr2Al20-type structure compound (a=14.4775(5) {\AA}) exhibits a large interatomic U-U distance, du-u=6.34 {\AA}, well beyond the Hill limit. The morphology of this sample was examined by means of scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). The susceptibility obeys the Curie-Weiss law in the temperature range of 80-300 K, with μeff=2.3(3)μB/f.u. No magnetic transitions were detected down to 1.7 K, as was supported by the electrical resistivity measurements. The X-ray analysis determined that V/V0=0.82 at 31.5 GPa with no crystallographic phase transition. The bulk modulus and the pressure derivative were derived as B0=40(5) GPa and B′0=17(2), respectively.",

keywords = "Aluminum, Crystallography, High pressure, Uranium, Vanadium",

author = "I. Halevy and E. Sterer and M. Aizenshtein and G. Kimmel and D. Regev and E. Yahel and Pereira, {L. C.J.} and Goncalves, {A. P.}",

year = "2001",

month = apr,

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doi = "10.1016/S0925-8388(01)00881-7",

language = "English",

volume = "319",

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T1 - High pressure studies of a new ternary actinide compound, UV2Al20

AU - Halevy, I.

AU - Sterer, E.

AU - Aizenshtein, M.

AU - Kimmel, G.

AU - Regev, D.

AU - Yahel, E.

AU - Pereira, L. C.J.

AU - Goncalves, A. P.

PY - 2001/4/26

Y1 - 2001/4/26

N2 - A new uranium compound, UV2Al20, is reported. This CeCr2Al20-type structure compound (a=14.4775(5) Å) exhibits a large interatomic U-U distance, du-u=6.34 Å, well beyond the Hill limit. The morphology of this sample was examined by means of scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). The susceptibility obeys the Curie-Weiss law in the temperature range of 80-300 K, with μeff=2.3(3)μB/f.u. No magnetic transitions were detected down to 1.7 K, as was supported by the electrical resistivity measurements. The X-ray analysis determined that V/V0=0.82 at 31.5 GPa with no crystallographic phase transition. The bulk modulus and the pressure derivative were derived as B0=40(5) GPa and B′0=17(2), respectively.

AB - A new uranium compound, UV2Al20, is reported. This CeCr2Al20-type structure compound (a=14.4775(5) Å) exhibits a large interatomic U-U distance, du-u=6.34 Å, well beyond the Hill limit. The morphology of this sample was examined by means of scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). The susceptibility obeys the Curie-Weiss law in the temperature range of 80-300 K, with μeff=2.3(3)μB/f.u. No magnetic transitions were detected down to 1.7 K, as was supported by the electrical resistivity measurements. The X-ray analysis determined that V/V0=0.82 at 31.5 GPa with no crystallographic phase transition. The bulk modulus and the pressure derivative were derived as B0=40(5) GPa and B′0=17(2), respectively.

KW - Aluminum

KW - Crystallography

KW - High pressure

KW - Uranium

KW - Vanadium

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