X-ray single-crystal study of the low-temperature structure of KNiCl3

O. A. Petrenko; M. A. Lumsden; M. D. Lumsden; M. F. Collins

doi:10.1088/0953-8984/8/50/016

X-ray single-crystal study of the low-temperature structure of KNiCl₃

O. A. Petrenko, M. A. Lumsden, M. D. Lumsden, M. F. Collins

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14 Scopus citations

Abstract

A single-crystal x-ray study on the low-temperature structure of KNiCl₃ proves the existence of two different crystal structure distortions, as originally found by neutron scattering. One phase is hexagonal and does not differ much from the room temperature structure. It appears through a second-order phase transition. The other phase is orthorhombic and appears through a first-order phase transition. A model is proposed for the orthorhombic phase, which fits our x-ray measurements on KNiCl₃ as well as on RbMnBr₃. The model gives rise to a magnetic configuration that maps on to the row model of Zhang et al.

Original language	English
Pages (from-to)	10899-10906
Number of pages	8
Journal	Journal of Physics Condensed Matter
Volume	8
Issue number	50
DOIs	https://doi.org/10.1088/0953-8984/8/50/016
State	Published - Dec 9 1996
Externally published	Yes

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title = "X-ray single-crystal study of the low-temperature structure of KNiCl3",

abstract = "A single-crystal x-ray study on the low-temperature structure of KNiCl3 proves the existence of two different crystal structure distortions, as originally found by neutron scattering. One phase is hexagonal and does not differ much from the room temperature structure. It appears through a second-order phase transition. The other phase is orthorhombic and appears through a first-order phase transition. A model is proposed for the orthorhombic phase, which fits our x-ray measurements on KNiCl3 as well as on RbMnBr3. The model gives rise to a magnetic configuration that maps on to the row model of Zhang et al.",

author = "Petrenko, {O. A.} and Lumsden, {M. A.} and Lumsden, {M. D.} and Collins, {M. F.}",

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AU - Petrenko, O. A.

AU - Lumsden, M. A.

AU - Lumsden, M. D.

AU - Collins, M. F.

PY - 1996/12/9

Y1 - 1996/12/9

N2 - A single-crystal x-ray study on the low-temperature structure of KNiCl3 proves the existence of two different crystal structure distortions, as originally found by neutron scattering. One phase is hexagonal and does not differ much from the room temperature structure. It appears through a second-order phase transition. The other phase is orthorhombic and appears through a first-order phase transition. A model is proposed for the orthorhombic phase, which fits our x-ray measurements on KNiCl3 as well as on RbMnBr3. The model gives rise to a magnetic configuration that maps on to the row model of Zhang et al.

AB - A single-crystal x-ray study on the low-temperature structure of KNiCl3 proves the existence of two different crystal structure distortions, as originally found by neutron scattering. One phase is hexagonal and does not differ much from the room temperature structure. It appears through a second-order phase transition. The other phase is orthorhombic and appears through a first-order phase transition. A model is proposed for the orthorhombic phase, which fits our x-ray measurements on KNiCl3 as well as on RbMnBr3. The model gives rise to a magnetic configuration that maps on to the row model of Zhang et al.

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EP - 10906

JO - Journal of Physics Condensed Matter

JF - Journal of Physics Condensed Matter

IS - 50

ER -

X-ray single-crystal study of the low-temperature structure of KNiCl₃

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