High-temperature onset of field-induced transitions in the spin-ice compound Dy2Ti2O7
We have studied the field-dependent ac magnetic susceptibility of single crystals of Dy2Ti2O7 spin ice along the [111] direction in the temperature range 1.8-7 K. Our data reflect the onset of local spin-ice order in the appearance of different field regimes. In particular, we observe a prominent fe...
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Autores principales: | , , , , , |
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Formato: | Articulo |
Lenguaje: | Inglés |
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2012
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Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/84480 |
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I19-R120-10915-84480 |
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dspace |
institution |
Universidad Nacional de La Plata |
institution_str |
I-19 |
repository_str |
R-120 |
collection |
SEDICI (UNLP) |
language |
Inglés |
topic |
Física Magnetism Frustrated Magnets Spin Ice |
spellingShingle |
Física Magnetism Frustrated Magnets Spin Ice Matthews, M. J. Castelnovo, C. Moessner, R. Grigera, Santiago Andrés Prabhakaran, D. Schiffer, P. High-temperature onset of field-induced transitions in the spin-ice compound Dy2Ti2O7 |
topic_facet |
Física Magnetism Frustrated Magnets Spin Ice |
description |
We have studied the field-dependent ac magnetic susceptibility of single crystals of Dy2Ti2O7 spin ice along the [111] direction in the temperature range 1.8-7 K. Our data reflect the onset of local spin-ice order in the appearance of different field regimes. In particular, we observe a prominent feature at approximately 1.0 T that is a precursor of the low-temperature metamagnetic transition out of field-induced kagome ice, below which the kinetic constraints imposed by the ice rules manifest themselves in a substantial frequency dependence of the susceptibility. Despite the relatively high temperatures, our results are consistent with a monopole picture, and they demonstrate that such a picture can give physical insight into spin-ice systems even outside the low-temperature, low-density limit where monopole excitations are well-defined quasiparticles. |
format |
Articulo Articulo |
author |
Matthews, M. J. Castelnovo, C. Moessner, R. Grigera, Santiago Andrés Prabhakaran, D. Schiffer, P. |
author_facet |
Matthews, M. J. Castelnovo, C. Moessner, R. Grigera, Santiago Andrés Prabhakaran, D. Schiffer, P. |
author_sort |
Matthews, M. J. |
title |
High-temperature onset of field-induced transitions in the spin-ice compound Dy2Ti2O7 |
title_short |
High-temperature onset of field-induced transitions in the spin-ice compound Dy2Ti2O7 |
title_full |
High-temperature onset of field-induced transitions in the spin-ice compound Dy2Ti2O7 |
title_fullStr |
High-temperature onset of field-induced transitions in the spin-ice compound Dy2Ti2O7 |
title_full_unstemmed |
High-temperature onset of field-induced transitions in the spin-ice compound Dy2Ti2O7 |
title_sort |
high-temperature onset of field-induced transitions in the spin-ice compound dy2ti2o7 |
publishDate |
2012 |
url |
http://sedici.unlp.edu.ar/handle/10915/84480 |
work_keys_str_mv |
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bdutipo_str |
Repositorios |
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1764820488778940420 |