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Magnetism in the axion insulator candidate Eu5In2Sb6 [dataset] Open Access

Eu 5 In 2 Sb 6 is a member of a family of orthorhombic nonsymmorphic rare-earth intermetallics that combines large localized magnetic moments and itinerant exchange with a low carrier density and perpendicular glide planes. This may result in special topological crystalline (wallpaper fermion) or axion insulating phases. Recent studies of Eu 5 In 2 Sb 6 single crystals have revealed colossal negative magnetoresistance and multiple magnetic phase transitions. Here, we clarify this ordering process using neutron scattering, resonant elastic x-ray scattering, muon spin-rotation, and magnetometry. The nonsymmorphic and multisite character of Eu 5 In 2 Sb 6 results in coplanar noncollinear magnetic structures with an Ising-like net magnetization along the a axis. A reordering transition, attributable to competing ferro- and antiferromagnetic couplings, manifests as the onset of a second commensurate Fourier component. In the absence of spatially resolved probes, the experimental evidence for this low-temperature state can be interpreted either as an unusual double- q structure or in a phase separation scenario. The net magnetization produces variable anisotropic hysteretic effects which also couple to charge transport. The implied potential for functional domain physics and topological transport suggests that this structural family may be a promising platform to implement concepts of topological antiferromagnetic spintronics.

Descriptions

Resource type

Dataset

Contributors

Data collector: Rahn, M.C. ¹
Data collector: Wilson, M.N. ²
Data collector: Hicken, T.J. ²
Data collector: Pratt, F.L. ³
Data collector: Wang, C. ⁴
Data collector: Orlandi, F. ³
Data collector: Khalyavin, D.D. ³
Data collector: Manuel, P. ³
Data collector: Veiga, L.S.I. ⁵
Data collector: Bombardi, A. ⁶
Data collector: Francoual, S. ⁷
Data collector: Bereciartua, P. ⁷
Data collector: Sukhanov, A.S. ¹
Data collector: Thompson, J.D. ⁸
Data collector: Thomas, S.M. ⁸
Data collector: Rosa, P.F.S. ⁸
Creator: Lancaster, T. ²
Contact person: Lancaster, T. ²
Data collector: Lancaster, T. ²
Data collector: Ronning, F. ⁸
Data collector: Janoschek, M. ⁸

¹ TU Dresden
² Durham University
³ STFC-ISIS Facility
⁴ Swiss Muon Source
⁵ University College London
⁶ Diamond Light Source
⁷ DESY
⁸ Los Alamos National Laboratory

Funder

Engineering and Physical Sciences Research Council

Research methods

Other description

Keyword

Muon-spin relaxation

Subject

Location

Language

Cited in

doi:10.1103/PhysRevB.109.174404

Identifier

ark:/32150/r1zp38wc68k
doi:10.15128/r1zp38wc68k

Rights

Creative Commons Attribution 4.0 International (CC BY)

Publisher

Durham University

Date Created

File Details

Depositor

T. Lancaster

Date Uploaded

1 March 2024, 08:03:55

Date Modified

13 May 2024, 10:05:31

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Characterization

File format: zip (ZIP Format)

Mime type: application/zip

File size: 121640

Last modified: 2024:05:09 08:57:33+01:00

Filename: Eu5In2Sb6_MuonData.zip

Original checksum: 775053ebc9cb1e631b85e480001895ee