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  Topological metamagnetism: Thermodynamics and dynamics of the transition in spin ice under uniaxial compression

Pili, L., Steppke, A., Barber, M. E., Jerzembeck, F., Hicks, C. W., Guruciaga, P. C., et al. (2022). Topological metamagnetism: Thermodynamics and dynamics of the transition in spin ice under uniaxial compression. Physical Review B, 105(18): 184422, pp. 1-8. doi:10.1103/PhysRevB.105.184422.

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 Creators:
Pili, L.1, Author
Steppke, A.2, Author              
Barber, M. E.2, Author              
Jerzembeck, F.2, Author              
Hicks, C. W.3, Author              
Guruciaga, P. C.1, Author
Prabhakaran, D.1, Author
Moessner, R.1, Author
Mackenzie, A. P.4, Author              
Grigera, S. A.1, Author
Borzi, R. A.1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863462              
3Clifford Hicks, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863466              
4Andrew Mackenzie, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863463              

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Free keywords: Dysprosium compounds, Holmium compounds, Single crystals, Spin dynamics, Thermodynamics, Titanium compounds, Topology, Field strengths, Gas liquids, Liquid transition, Metamagnetic transitions, Metamagnets, Pressure-driven, Spin ice, Spin-exchange interaction, Superlinear, Uni-axial compression, Magnetization
 Abstract: Metamagnetic transitions are analogs of a pressure-driven gas-liquid transition in water. In insulators, they are marked by a superlinear increase in the magnetization that occurs at a field strength set by the spin exchange interactions. Here we study topological metamagnets, in which the magnetization is itself a topological quantity and for which we find a single transition line for two materials with substantially different magnetic interactions: the spin ices Dy2Ti2O7 and Ho2Ti2O7. We study single crystals under magnetic field and stress applied along the [001] direction and show that this transition, of the Kasteleyn type, has a magnetization versus field curve with upward convexity and a distinctive asymmetric peak in the susceptibility. We also show that the dynamical response of Ho2Ti2O7 is sensitive to changes in the Ho3+ environment induced by compression along [001]. Uniaxial compression may open up experimental access to equilibrium properties of spin ice at lower temperatures. © 2022 American Physical Society.

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Language(s): eng - English
 Dates: 2022-05-242022-05-24
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1103/PhysRevB.105.184422
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Title: Physical Review B
  Alternative Title : Phys. Rev. B
Source Genre: Journal
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Publ. Info: American Physical Society
Pages: - Volume / Issue: 105 (18) Sequence Number: 184422 Start / End Page: 1 - 8 Identifier: ISBN: 24699950 (ISSN)