Zobrazeno 1 - 10
of 39
pro vyhledávání: '"Grigera, Santiago"'
Autor:
Szabo, Attila, Grigera, Santiago A., Holdsworth, P. C. W., Jaubert, Ludovic D. C., Moessner, Roderich, Slobinsky, Demian G., Sturla, Mauricio, Borzi, Rodolfo A.
We investigate a simple variant of spin ice whose degenerate ground states are densely packed monopole configurations. An applied field drives this model through a Z2 confinement transition, in absence of any local order parameter. Instead, this hidd
Externí odkaz:
http://arxiv.org/abs/2406.09336
In this paper, we examine the magnetoelectric response of Ising pyrochlores, focusing on both the ordered antiferromagnetic state and the frustrated ferromagnetic case known as "spin-ice". We employ a model which accounts for magnetoelastic effects b
Externí odkaz:
http://arxiv.org/abs/2310.17377
Autor:
Hallén, Jonathan N., Grigera, Santiago A., Tennant, D. Alan, Castelnovo, Claudio, Moessner, Roderich
Publikováno v:
Science 378, 1218 (2022)
Fractals -- objects with non-integer dimensions -- occur in manifold settings and length scales in nature, ranging from snowflakes and lightning strikes to natural coastlines. Much effort has been expended to generate fractals for use in many-body ph
Externí odkaz:
http://arxiv.org/abs/2211.00051
Autor:
Guruciaga, Pamela C., Pili, Lucas, Boyeras, Santiago, Slobinsky, Demian, Grigera, Santiago A., Borzi, Rodolfo A.
Publikováno v:
J. Phys.: Condens. Matter 32 (2020) 425804
We study experimentally and numerically the dynamics of the spin ice material Dy$_2$Ti$_2$O$_7$ in the low temperature ($T$) and moderate magnetic field ($\mathbf{B}$) regime ($T\in[0.1,1.7]K$, $B\in[0,0.3]T$). Our objective is to understand the main
Externí odkaz:
http://arxiv.org/abs/2003.11088
Autor:
Samarakoon, Anjana M, Barros, Kipton, Li, Ying Wai, Eisenbach, Markus, Zhang, Qiang, Ye, Feng, Dun, Z. L., Zhou, Haidong, Grigera, Santiago A., Batista, Cristian D., Tennant, D. Alan
Complex behavior poses challenges in extracting models from experiment. An example is spin liquid formation in frustrated magnets like Dy$_2$Ti$_2$O$_7$. Understanding has been hindered by issues including disorder, glass formation, and interpretatio
Externí odkaz:
http://arxiv.org/abs/1906.11275
Autor:
Guruciaga, Pamela C., Tarzia, Marco, Ferreyra, M. Victoria, Cugliandolo, Leticia F., Grigera, Santiago A., Borzi, Rodolfo A.
Publikováno v:
Phys. Rev. Lett. 117, 167203 (2016)
We demonstrate the appearance of thermal order by disorder in Ising pyrochlores with staggered antiferromagnetic order frustrated by an applied magnetic field. We use a mean-field cluster variational method, a low-temperature expansion and Monte Carl
Externí odkaz:
http://arxiv.org/abs/1606.02972
Autor:
Brodsky, Daniel, Barber, Mark, Bruin, Jan, Borzi, Rodolfo, Grigera, Santiago, Perry, Robin, Mackenzie, Andrew, Hicks, Clifford
Symmetry is a basic paradigm for analysis of problems in solid state physics, and to controllably break point-group symmetries is a powerful probe of novel forms of order. In this work, we apply two methods, controlled lattice strain and vector magne
Externí odkaz:
http://arxiv.org/abs/1512.04216
Publikováno v:
Phys. Rev. B 90, 184423 (2014)
We study Ising pyrochlores by means of Monte Carlo simulations. We cover a set of exchange constants ranging from the frustrated ferromagnetic case (spin-ice) to the fully-ordered "all-in--all-out" antiferromagnet in the dipolar model, reinterpreting
Externí odkaz:
http://arxiv.org/abs/1409.5380
Autor:
Grigera, Santiago
Publikováno v:
BULERIA. Repositorio Institucional de la Universidad de León
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En la actualidad transitamos una época de avances tecnológicos que superan el nivel de entendimiento y asimilación humana. De esta manera, se pone en evidencia que la demorada respuesta normativa no siempre resulta eficaz ante los vertiginosos cam
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::299c52f40de8aa2c2a5865c976f02e05
http://hdl.handle.net/10612/14759
http://hdl.handle.net/10612/14759
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