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Dipolar spin ice under uniaxial pressure
KTH, School of Engineering Sciences (SCI), Physics, Condensed Matter Theory.ORCID iD: 0000-0001-7464-6734
Univ Copenhagen, Nanosci Ctr, Niels Bohr Inst, Univ Pk 5, DK-2100 Copenhagen O, Denmark..
Univ Oslo, Ctr Mat Sci & Nanotechnol, N-0315 Oslo, Norway..
Univ Copenhagen, Nanosci Ctr, Niels Bohr Inst, Univ Pk 5, DK-2100 Copenhagen O, Denmark..
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2019 (English)In: Physical Review B, ISSN 2469-9950, E-ISSN 2469-9969, Vol. 100, no 14, article id 144436Article in journal (Refereed) Published
Abstract [en]

The magnetically frustrated spin ice family of materials is host to numerous exotic phenomena such as magnetic monopole excitations and macroscopic residual entropy extending to low temperature. A finite-temperature ordering transition in the absence of applied fields has not been experimentally observed in the classical spin ice materials Dy2Ti2O7 and Ho2Ti2O7. Such a transition could be induced by the application of pressure, and in this work we consider the effects of uniaxial pressure on classical spin ice systems. Theoretically, we find that the pressure-induced ordering transition in Dy2Ti2O7 is strongly affected by the dipolar interaction. We also report measurements of the neutron structure factor of Ho2Ti2O7 under pressure and compare the experimental results to the predictions of our theoretical model.

Place, publisher, year, edition, pages
American Physical Society, 2019. Vol. 100, no 14, article id 144436
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-263678DOI: 10.1103/PhysRevB.100.144436ISI: 000492964800006Scopus ID: 2-s2.0-85074429643OAI: oai:DiVA.org:kth-263678DiVA, id: diva2:1368714
Note

QC 20191108

Available from: 2019-11-08 Created: 2019-11-08 Last updated: 2020-01-13Bibliographically approved

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