On two phases inside the Bose condensation dome of Yb\(_2\)Si\(_2\)O\(_7\)
Recent experimental data on Bose-Einstein Condensation (BEC) of magnons in the spin-gap compound Yb\(_2\)Si\(_2\)O\(_7\) revealed an asymmetric BEC dome arXiv:1810.13096v2. We examine modifications to the Heisenberg model on a breathing honeycomb lattice, showing that this physics can be explained b...
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Published in | arXiv.org |
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Main Authors | , , , |
Format | Paper |
Language | English |
Published |
Ithaca
Cornell University Library, arXiv.org
03.10.2020
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Subjects | |
Online Access | Get full text |
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Summary: | Recent experimental data on Bose-Einstein Condensation (BEC) of magnons in the spin-gap compound Yb\(_2\)Si\(_2\)O\(_7\) revealed an asymmetric BEC dome arXiv:1810.13096v2. We examine modifications to the Heisenberg model on a breathing honeycomb lattice, showing that this physics can be explained by competing forms of weak anisotropy. We employ a gamut of analytical and numerical techniques to show that the anisotropy yields a field driven phase transition from a state with broken Ising symmetry to a phase which breaks no symmetries and crosses over to the polarized limit. |
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ISSN: | 2331-8422 |
DOI: | 10.48550/arxiv.2001.08219 |