Crystal-field states of Pr3+ in the candidate quantum spin ice Pr2Sn2O7

A. J. Princep; D. Prabhakaran; A. T. Boothroyd; D. T. Adroja

doi:10.1103/PhysRevB.88.104421

Crystal-field states of Pr3⁺ in the candidate quantum spin ice Pr₂Sn₂O₇

A. J. Princep, D. Prabhakaran, A. T. Boothroyd, D. T. Adroja

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

56 Citations (Scopus)

Abstract

Neutron time-of-flight spectroscopy has been employed to study the crystal-field splitting of Pr3⁺ in the pyrochlore stannate Pr ₂Sn₂O₇. The crystal field has been parameterized from a profile fit to the observed neutron spectrum. The single-ion ground state is a well-isolated non-Kramers doublet of Γ3+ symmetry with a large Ising-like anisotropy, χ_zz/ χ_âŠ¥≈60 at 10 K, but with a significant admixture of terms |M_J≠±J, which can give rise to quantum zero-point fluctuations. This magnetic state satisfies the requirements for quantum spin-ice behavior.

Original language	English
Article number	104421
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	88
Issue number	10
DOIs	https://doi.org/10.1103/PhysRevB.88.104421
Publication status	Published - 23 Sept 2013
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.88.104421

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title = "Crystal-field states of Pr3+ in the candidate quantum spin ice Pr2Sn2O7",

abstract = "Neutron time-of-flight spectroscopy has been employed to study the crystal-field splitting of Pr3+ in the pyrochlore stannate Pr 2Sn2O7. The crystal field has been parameterized from a profile fit to the observed neutron spectrum. The single-ion ground state is a well-isolated non-Kramers doublet of Γ3+ symmetry with a large Ising-like anisotropy, χzz/ χ{\^a}{\v S}¥≈60 at 10 K, but with a significant admixture of terms |MJ≠±J, which can give rise to quantum zero-point fluctuations. This magnetic state satisfies the requirements for quantum spin-ice behavior.",

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AU - Boothroyd, A. T.

AU - Adroja, D. T.

PY - 2013/9/23

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AB - Neutron time-of-flight spectroscopy has been employed to study the crystal-field splitting of Pr3+ in the pyrochlore stannate Pr 2Sn2O7. The crystal field has been parameterized from a profile fit to the observed neutron spectrum. The single-ion ground state is a well-isolated non-Kramers doublet of Γ3+ symmetry with a large Ising-like anisotropy, χzz/ χâŠ¥≈60 at 10 K, but with a significant admixture of terms |MJ≠±J, which can give rise to quantum zero-point fluctuations. This magnetic state satisfies the requirements for quantum spin-ice behavior.

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Crystal-field states of Pr3⁺ in the candidate quantum spin ice Pr₂Sn₂O₇

Abstract

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