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: Matthews, M. J., Castelnovo, C., Moessner, R., Grigera, Santiago Andrés, Prabhakaran, D., Schiffer, P.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2012
Materias:
Física
Magnetism
Frustrated Magnets
Spin Ice
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/84480
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-84480
record_format 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
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