Crystallographic and magnetic structure of HAVAR under high-pressure using diamond anvil cell (DAC)

Itzhak Halevy; Shlomo Haroush; Yosef Eisen; Ido Silberman; Dany Moreno; Amir Hen; Mike L. Winterrose; Sanjit Ghose; Zhiqiang Chen

doi:10.1007/s10751-010-0222-3

Crystallographic and magnetic structure of HAVAR under high-pressure using diamond anvil cell (DAC)

Itzhak Halevy, Shlomo Haroush, Yosef Eisen, Ido Silberman, Dany Moreno, Amir Hen, Mike L. Winterrose, Sanjit Ghose, Zhiqiang Chen

Unit of Nuclear Engineering

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

1 Scopus citations

Abstract

Annealed (H1) and cold-rolled (H2) HAVAR has been studied using high-pressure synchrotron X-ray diffraction. A structural phase transformation was discovered at ~13 GPa at ambient temperature, transforming from m -3 m (S.G.225) to P 63/m m c (S.G.194) symmetry. The transition was not reversible on pressure release. The low-pressure cubic phase was found to be more compressible than the high-pressure hexagonal phase. Conventional Mössbauer and NFS shows that the HAVAR is not magnetic at room temperature and no splitting is observed. The SQUID indicates a huge difference in the temperature dependence of the magnetic susceptibility between the cold Rolled HAVAR compared to the annealed HAVAR.

Original language	English
Pages (from-to)	135-141
Number of pages	7
Journal	Hyperfine Interactions
Volume	197
Issue number	1
DOIs	https://doi.org/10.1007/s10751-010-0222-3
State	Published - 2 Dec 2010

Keywords

Crystallographic structure
Diamond anvil cell (DAC)
HAVAR
High-pressure
Magnetic properties

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Nuclear and High Energy Physics
Condensed Matter Physics
Physical and Theoretical Chemistry

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10.1007/s10751-010-0222-3

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title = "Crystallographic and magnetic structure of HAVAR under high-pressure using diamond anvil cell (DAC)",

abstract = "Annealed (H1) and cold-rolled (H2) HAVAR has been studied using high-pressure synchrotron X-ray diffraction. A structural phase transformation was discovered at ~13 GPa at ambient temperature, transforming from m -3 m (S.G.225) to P 63/m m c (S.G.194) symmetry. The transition was not reversible on pressure release. The low-pressure cubic phase was found to be more compressible than the high-pressure hexagonal phase. Conventional M{\"o}ssbauer and NFS shows that the HAVAR is not magnetic at room temperature and no splitting is observed. The SQUID indicates a huge difference in the temperature dependence of the magnetic susceptibility between the cold Rolled HAVAR compared to the annealed HAVAR.",

keywords = "Crystallographic structure, Diamond anvil cell (DAC), HAVAR, High-pressure, Magnetic properties",

author = "Itzhak Halevy and Shlomo Haroush and Yosef Eisen and Ido Silberman and Dany Moreno and Amir Hen and Winterrose, {Mike L.} and Sanjit Ghose and Zhiqiang Chen",

year = "2010",

month = dec,

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doi = "10.1007/s10751-010-0222-3",

language = "English",

volume = "197",

pages = "135--141",

journal = "Hyperfine Interactions",

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TY - JOUR

T1 - Crystallographic and magnetic structure of HAVAR under high-pressure using diamond anvil cell (DAC)

AU - Halevy, Itzhak

AU - Haroush, Shlomo

AU - Eisen, Yosef

AU - Silberman, Ido

AU - Moreno, Dany

AU - Hen, Amir

AU - Winterrose, Mike L.

AU - Ghose, Sanjit

AU - Chen, Zhiqiang

PY - 2010/12/2

Y1 - 2010/12/2

N2 - Annealed (H1) and cold-rolled (H2) HAVAR has been studied using high-pressure synchrotron X-ray diffraction. A structural phase transformation was discovered at ~13 GPa at ambient temperature, transforming from m -3 m (S.G.225) to P 63/m m c (S.G.194) symmetry. The transition was not reversible on pressure release. The low-pressure cubic phase was found to be more compressible than the high-pressure hexagonal phase. Conventional Mössbauer and NFS shows that the HAVAR is not magnetic at room temperature and no splitting is observed. The SQUID indicates a huge difference in the temperature dependence of the magnetic susceptibility between the cold Rolled HAVAR compared to the annealed HAVAR.

AB - Annealed (H1) and cold-rolled (H2) HAVAR has been studied using high-pressure synchrotron X-ray diffraction. A structural phase transformation was discovered at ~13 GPa at ambient temperature, transforming from m -3 m (S.G.225) to P 63/m m c (S.G.194) symmetry. The transition was not reversible on pressure release. The low-pressure cubic phase was found to be more compressible than the high-pressure hexagonal phase. Conventional Mössbauer and NFS shows that the HAVAR is not magnetic at room temperature and no splitting is observed. The SQUID indicates a huge difference in the temperature dependence of the magnetic susceptibility between the cold Rolled HAVAR compared to the annealed HAVAR.

KW - Crystallographic structure

KW - Diamond anvil cell (DAC)

KW - HAVAR

KW - High-pressure

KW - Magnetic properties

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U2 - 10.1007/s10751-010-0222-3

DO - 10.1007/s10751-010-0222-3

M3 - Article

AN - SCOPUS:79951551040

SN - 0304-3843

VL - 197

SP - 135

EP - 141

JO - Hyperfine Interactions

JF - Hyperfine Interactions

IS - 1

ER -

Crystallographic and magnetic structure of HAVAR under high-pressure using diamond anvil cell (DAC)

Abstract

Keywords

ASJC Scopus subject areas

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