Electronic anisotropy and rotational symmetry breaking at a Weyl semimetal/spin ice interface
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arXiv
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| Autores principales: | , , , , , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| Materias: | |
| Acceso en línea: | |
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| _version_ | 1866910795229560832 |
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| author | Wu, Tsung-Chi Chang, Yueqing Wu, Ang-Kun Terilli, Michael Wen, Fangdi Kareev, Mikhail Choi, Eun Sang Graf, David Zhang, Qinghua Gu, Lin Wang, Zhentao Pixley, Jedediah H. Chakhalian, Jak |
| author_facet | Wu, Tsung-Chi Chang, Yueqing Wu, Ang-Kun Terilli, Michael Wen, Fangdi Kareev, Mikhail Choi, Eun Sang Graf, David Zhang, Qinghua Gu, Lin Wang, Zhentao Pixley, Jedediah H. Chakhalian, Jak |
| contents | In magnetic pyrochlore materials, the interplay of spin-orbit coupling, electronic correlations, and geometrical frustration gives rise to exotic quantum phases, including topological semimetals and spin ice. While these phases have been observed in isolation, the interface-driven phenomena emerging from their interaction have never been realized previously. Here, we report on the discovery of interfacial electronic anisotropy and rotational symmetry breaking at a heterostructure consisting of the Weyl semimetal Eu2Ir2O7 and spin ice Dy2Ti2O7. Subjected to magnetic fields, we unveil a six-fold anisotropic transport response that is theoretically accounted by a Kondo-coupled heterointerface, where the spin ice's field-tuned magnetism induces electron scattering in the Weyl semimetal's topological Fermi-arc states. Furthermore, at elevated magnetic fields, we reveal a two-fold anisotropic response indicative of a new symmetry-broken many-body state. This discovery showcases the nascent potential of complex quantum architectures in search of emergent phenomena unreachable in bulk crystals. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_18880 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Electronic anisotropy and rotational symmetry breaking at a Weyl semimetal/spin ice interface Wu, Tsung-Chi Chang, Yueqing Wu, Ang-Kun Terilli, Michael Wen, Fangdi Kareev, Mikhail Choi, Eun Sang Graf, David Zhang, Qinghua Gu, Lin Wang, Zhentao Pixley, Jedediah H. Chakhalian, Jak Strongly Correlated Electrons Materials Science In magnetic pyrochlore materials, the interplay of spin-orbit coupling, electronic correlations, and geometrical frustration gives rise to exotic quantum phases, including topological semimetals and spin ice. While these phases have been observed in isolation, the interface-driven phenomena emerging from their interaction have never been realized previously. Here, we report on the discovery of interfacial electronic anisotropy and rotational symmetry breaking at a heterostructure consisting of the Weyl semimetal Eu2Ir2O7 and spin ice Dy2Ti2O7. Subjected to magnetic fields, we unveil a six-fold anisotropic transport response that is theoretically accounted by a Kondo-coupled heterointerface, where the spin ice's field-tuned magnetism induces electron scattering in the Weyl semimetal's topological Fermi-arc states. Furthermore, at elevated magnetic fields, we reveal a two-fold anisotropic response indicative of a new symmetry-broken many-body state. This discovery showcases the nascent potential of complex quantum architectures in search of emergent phenomena unreachable in bulk crystals. |
| title | Electronic anisotropy and rotational symmetry breaking at a Weyl semimetal/spin ice interface |
| topic | Strongly Correlated Electrons Materials Science |
| url | https://arxiv.org/abs/2409.18880 |