Absence of long-range magnetic ordering in the pyrochlore compound Er 2Sn2O7

P. M. Sarte; H. J. Silverstein; B. T.K. Van Wyk; J. S. Gardner; Y. Qiu; H. D. Zhou; C. R. Wiebe

doi:10.1088/0953-8984/23/38/382201

Absence of long-range magnetic ordering in the pyrochlore compound Er ₂Sn₂O₇

P. M. Sarte, H. J. Silverstein, B. T.K. Van Wyk, J. S. Gardner, Y. Qiu, H. D. Zhou, C. R. Wiebe

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25 Scopus citations

Abstract

The low temperature behaviour of powder Er₂Sn₂O ₇ samples has been studied by magnetic susceptibility, heat capacity, and neutron scattering experiments. We report here the absence of magnetic ordering down to 100mK. Anomalies in the heat capacity can be accounted for through an analysis of the crystal field spectrum observed by inelastic neutron scattering spectroscopy. These new measurements on Er₂Sn ₂O₇ suggest a new lower bound for the frustration index of f=|_CW|/T_N=14/0.1=140, placing this compound into a highly frustrated regime.

Original language	English
Article number	382201
Journal	Journal of Physics Condensed Matter
Volume	23
Issue number	38
DOIs	https://doi.org/10.1088/0953-8984/23/38/382201
State	Published - Sep 28 2011
Externally published	Yes

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title = "Absence of long-range magnetic ordering in the pyrochlore compound Er 2Sn2O7",

abstract = "The low temperature behaviour of powder Er2Sn2O 7 samples has been studied by magnetic susceptibility, heat capacity, and neutron scattering experiments. We report here the absence of magnetic ordering down to 100mK. Anomalies in the heat capacity can be accounted for through an analysis of the crystal field spectrum observed by inelastic neutron scattering spectroscopy. These new measurements on Er2Sn 2O7 suggest a new lower bound for the frustration index of f=|CW|/TN=14/0.1=140, placing this compound into a highly frustrated regime.",

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AU - Sarte, P. M.

AU - Silverstein, H. J.

AU - Van Wyk, B. T.K.

AU - Gardner, J. S.

AU - Qiu, Y.

AU - Zhou, H. D.

AU - Wiebe, C. R.

PY - 2011/9/28

Y1 - 2011/9/28

N2 - The low temperature behaviour of powder Er2Sn2O 7 samples has been studied by magnetic susceptibility, heat capacity, and neutron scattering experiments. We report here the absence of magnetic ordering down to 100mK. Anomalies in the heat capacity can be accounted for through an analysis of the crystal field spectrum observed by inelastic neutron scattering spectroscopy. These new measurements on Er2Sn 2O7 suggest a new lower bound for the frustration index of f=|CW|/TN=14/0.1=140, placing this compound into a highly frustrated regime.

AB - The low temperature behaviour of powder Er2Sn2O 7 samples has been studied by magnetic susceptibility, heat capacity, and neutron scattering experiments. We report here the absence of magnetic ordering down to 100mK. Anomalies in the heat capacity can be accounted for through an analysis of the crystal field spectrum observed by inelastic neutron scattering spectroscopy. These new measurements on Er2Sn 2O7 suggest a new lower bound for the frustration index of f=|CW|/TN=14/0.1=140, placing this compound into a highly frustrated regime.

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VL - 23

JO - Journal of Physics Condensed Matter

JF - Journal of Physics Condensed Matter

IS - 38

M1 - 382201

ER -

Absence of long-range magnetic ordering in the pyrochlore compound Er ₂Sn₂O₇

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