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Dipolar spin ice under uniaxial pressure

Edberg, R. ; Sandberg, L. Ørduk ; Bakke, I. M.Bergh ; Haubro, M. L. ; Folkers, L. C. LU ; Mangin-Thro, L. ; Wildes, A. ; Zaharko, O. ; Guthrie, M. LU and Holmes, A. T. , et al. (2019) In Physical Review B 100(14).
Abstract

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... (More)

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.

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type
Contribution to journal
publication status
published
subject
in
Physical Review B
volume
100
issue
14
article number
144436
publisher
American Physical Society
external identifiers
  • scopus:85074429643
ISSN
2469-9950
DOI
10.1103/PhysRevB.100.144436
language
English
LU publication?
yes
id
e2e7a6ff-b27e-47a4-8323-36e278080386
date added to LUP
2019-11-21 08:40:29
date last changed
2020-01-13 02:32:05
@article{e2e7a6ff-b27e-47a4-8323-36e278080386,
  abstract     = {<p>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.</p>},
  author       = {Edberg, R. and Sandberg, L. Ørduk and Bakke, I. M.Bergh and Haubro, M. L. and Folkers, L. C. and Mangin-Thro, L. and Wildes, A. and Zaharko, O. and Guthrie, M. and Holmes, A. T. and Sørby, M. H. and Lefmann, K. and Deen, P. P. and Henelius, P.},
  issn         = {2469-9950},
  language     = {eng},
  number       = {14},
  publisher    = {American Physical Society},
  series       = {Physical Review B},
  title        = {Dipolar spin ice under uniaxial pressure},
  url          = {http://dx.doi.org/10.1103/PhysRevB.100.144436},
  doi          = {10.1103/PhysRevB.100.144436},
  volume       = {100},
  year         = {2019},
}