Magnetic ordering in the pyrochlore Ho2CrSbO7 determined from neutron diffraction, and the magnetic properties of other RE2CrSbO7 phases (RE=Y, Tb, Dy, Er)

Mariana J. Whitaker; Colin Greaves

doi:10.1016/j.jssc.2014.03.039

Magnetic ordering in the pyrochlore Ho₂CrSbO₇ determined from neutron diffraction, and the magnetic properties of other RE₂CrSbO₇ phases (RE=Y, Tb, Dy, Er)

Mariana J. Whitaker, Colin Greaves

Chemistry

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12 Citations (Scopus)

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Abstract

The magnetic structure of the pyrochlore Ho₂CrSbO₇, which orders magnetically below 13 K, has been studied using neutron powder diffraction. Ho₂CrSbO₇ is found to form an “ordered spin-ice structure” where the magnetic moments are constrained along the 111 axes, but with a ferromagnetic moment in one direction. The Cr³⁺ ions order ferromagnetically and this is thought to lift the degeneracy of the x, y and z directions in the cubic structure causing the ferromagnetic component from the Ho³⁺ ions to align. The pyrochlores RE₂CrSbO₇ where RE=Y, Tb, Dy and Er have also been prepared and studied using SQUID magnetometry.

Original language	English
Pages (from-to)	171-175
Journal	Journal of Solid State Chemistry
Volume	215
Early online date	8 Apr 2014
DOIs	https://doi.org/10.1016/j.jssc.2014.03.039
Publication status	Published - 1 Jul 2014

Keywords

Pyrochlore
Neutron diffraction
Magnetic structure
Spin-ice
Holmium

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10.1016/j.jssc.2014.03.039

Greaves_Magnetic_ordering_pyrochlore_JSSC_2014
Eligibility for repository : checked 04/06/2014
Final published version, 1.92 MBLicence: Creative Commons: Attribution (CC BY)

12 Citations
1 Article

Absence of magnetic long range order in Y2CrSbO7: bond-disorder induced magnetic frustration in a ferromagnetic pyrochlore
Shen, L., Greaves, C., Riyat, R., Hansen, T. & Blackburn, E., 28 Sept 2017, In: Physical Review B. 96, 094438.
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3 Citations (Scopus)

234 Downloads (Pure)

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title = "Magnetic ordering in the pyrochlore Ho2CrSbO7 determined from neutron diffraction, and the magnetic properties of other RE2CrSbO7 phases (RE=Y, Tb, Dy, Er)",

abstract = "The magnetic structure of the pyrochlore Ho2CrSbO7, which orders magnetically below 13 K, has been studied using neutron powder diffraction. Ho2CrSbO7 is found to form an “ordered spin-ice structure” where the magnetic moments are constrained along the 111 axes, but with a ferromagnetic moment in one direction. The Cr3+ ions order ferromagnetically and this is thought to lift the degeneracy of the x, y and z directions in the cubic structure causing the ferromagnetic component from the Ho3+ ions to align. The pyrochlores RE2CrSbO7 where RE=Y, Tb, Dy and Er have also been prepared and studied using SQUID magnetometry.",

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AU - Whitaker, Mariana J.

AU - Greaves, Colin

PY - 2014/7/1

Y1 - 2014/7/1

N2 - The magnetic structure of the pyrochlore Ho2CrSbO7, which orders magnetically below 13 K, has been studied using neutron powder diffraction. Ho2CrSbO7 is found to form an “ordered spin-ice structure” where the magnetic moments are constrained along the 111 axes, but with a ferromagnetic moment in one direction. The Cr3+ ions order ferromagnetically and this is thought to lift the degeneracy of the x, y and z directions in the cubic structure causing the ferromagnetic component from the Ho3+ ions to align. The pyrochlores RE2CrSbO7 where RE=Y, Tb, Dy and Er have also been prepared and studied using SQUID magnetometry.

AB - The magnetic structure of the pyrochlore Ho2CrSbO7, which orders magnetically below 13 K, has been studied using neutron powder diffraction. Ho2CrSbO7 is found to form an “ordered spin-ice structure” where the magnetic moments are constrained along the 111 axes, but with a ferromagnetic moment in one direction. The Cr3+ ions order ferromagnetically and this is thought to lift the degeneracy of the x, y and z directions in the cubic structure causing the ferromagnetic component from the Ho3+ ions to align. The pyrochlores RE2CrSbO7 where RE=Y, Tb, Dy and Er have also been prepared and studied using SQUID magnetometry.

KW - Pyrochlore

KW - Neutron diffraction

KW - Magnetic structure

KW - Spin-ice

KW - Holmium

U2 - 10.1016/j.jssc.2014.03.039

DO - 10.1016/j.jssc.2014.03.039

M3 - Article

SN - 0022-4596

VL - 215

SP - 171

EP - 175

JO - Journal of Solid State Chemistry

JF - Journal of Solid State Chemistry

ER -

Magnetic ordering in the pyrochlore Ho2CrSbO7 determined from neutron diffraction, and the magnetic properties of other RE2CrSbO7 phases (RE=Y, Tb, Dy, Er)

Abstract

Keywords

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Research output

Absence of magnetic long range order in Y2CrSbO7: bond-disorder induced magnetic frustration in a ferromagnetic pyrochlore

Cite this

Magnetic ordering in the pyrochlore Ho₂CrSbO₇ determined from neutron diffraction, and the magnetic properties of other RE₂CrSbO₇ phases (RE=Y, Tb, Dy, Er)