Observation via spin Seebeck effect of macroscopic magnetic transport from emergent magnetic monopoles
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arXiv
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| Autores principales: | , , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| _version_ | 1866915508255719424 |
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| author | Tang, Nan Glamsch, Stephan Aqeel, Aisha Scheuchenpflug, Ludwig Schulze, Michael Liebald, Christoph Rytz, Daniel Guguschev, Christo Albrecht, Manfred Gegenwart, Philipp |
| author_facet | Tang, Nan Glamsch, Stephan Aqeel, Aisha Scheuchenpflug, Ludwig Schulze, Michael Liebald, Christoph Rytz, Daniel Guguschev, Christo Albrecht, Manfred Gegenwart, Philipp |
| contents | Magnetic monopoles, elusive in high-energy physics, have been realised as emergent quasiparticles in solid-state systems, where their unique properties hold promise for novel spintronic applications. Magnetic monopoles have been invoked in diverse platforms, including skyrmion lattices, chiral magnets, soft ferromagnets, aritifical nanomagnets. Yet, a demonstration of their role in magnetic transport has remained elusive. Here, we report such an observation via the spin Seebeck effect in the bulk insulating pyrochlore oxide, spin ice $\mathrm{Dy_2Ti_2O_7}$. By applying a thermal gradient perpendicular to a $[111]$-oriented magnetic field, we detect a transverse spin Seebeck voltage marked by a dominant peak at the onset of monopole proliferation, accompanied by a secondary feature and frequency-dependent behavior. Our findings establish a direct link between monopole dynamics and magnetic transport in an insulating medium, establishing a new pathway for probing fractionalized excitations and advancing towards novel spintronic applications. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_18422 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Observation via spin Seebeck effect of macroscopic magnetic transport from emergent magnetic monopoles Tang, Nan Glamsch, Stephan Aqeel, Aisha Scheuchenpflug, Ludwig Schulze, Michael Liebald, Christoph Rytz, Daniel Guguschev, Christo Albrecht, Manfred Gegenwart, Philipp Strongly Correlated Electrons Mesoscale and Nanoscale Physics Magnetic monopoles, elusive in high-energy physics, have been realised as emergent quasiparticles in solid-state systems, where their unique properties hold promise for novel spintronic applications. Magnetic monopoles have been invoked in diverse platforms, including skyrmion lattices, chiral magnets, soft ferromagnets, aritifical nanomagnets. Yet, a demonstration of their role in magnetic transport has remained elusive. Here, we report such an observation via the spin Seebeck effect in the bulk insulating pyrochlore oxide, spin ice $\mathrm{Dy_2Ti_2O_7}$. By applying a thermal gradient perpendicular to a $[111]$-oriented magnetic field, we detect a transverse spin Seebeck voltage marked by a dominant peak at the onset of monopole proliferation, accompanied by a secondary feature and frequency-dependent behavior. Our findings establish a direct link between monopole dynamics and magnetic transport in an insulating medium, establishing a new pathway for probing fractionalized excitations and advancing towards novel spintronic applications. |
| title | Observation via spin Seebeck effect of macroscopic magnetic transport from emergent magnetic monopoles |
| topic | Strongly Correlated Electrons Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2509.18422 |