Saved in:
| Main Authors: | , , , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | https://arxiv.org/abs/2511.04879 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866917067315216384 |
|---|---|
| author | Yang, Ting-Hsun Li, Yaochen Zhang, Peng Zhu, Penghao Yang, Hung-Yu Choi, Eun Sang Chen, Kaiwei Cui, Wenqiang Wong, Kin Deng, Peng Qiu, Gang Wang, Kang L. |
| author_facet | Yang, Ting-Hsun Li, Yaochen Zhang, Peng Zhu, Penghao Yang, Hung-Yu Choi, Eun Sang Chen, Kaiwei Cui, Wenqiang Wong, Kin Deng, Peng Qiu, Gang Wang, Kang L. |
| contents | We report the discovery of an in plane quantization (IPQ) state in trilayer magnetic topological insulators, characterized by a quantized longitudinal conductivity of e2/h under strong in-plane magnetic fields. This state emerges at a quantum critical point separating quantum anomalous Hall phases tuned by field angle and orientation, directly linking gap-closing behavior to quantized criticality. Temperature and gate dependent transport measurements, supported by a self consistent approximation model, reveal that electron hole puddles dominate charge transport in this regime, highlighting the essential role of impurity disorder in stabilizing quantized critical transport. These findings establish a tunable experimental framework that connects gap-closing physics with universal conductivity, offering both microscopic insight into critical transport in magnetic topological insulators and a robust platform for probing quantum criticality in topological systems. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_04879 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | In-Plane Field induced Quantized Longitudinal Conductivity in Magnetic Topological Insulators Yang, Ting-Hsun Li, Yaochen Zhang, Peng Zhu, Penghao Yang, Hung-Yu Choi, Eun Sang Chen, Kaiwei Cui, Wenqiang Wong, Kin Deng, Peng Qiu, Gang Wang, Kang L. Mesoscale and Nanoscale Physics We report the discovery of an in plane quantization (IPQ) state in trilayer magnetic topological insulators, characterized by a quantized longitudinal conductivity of e2/h under strong in-plane magnetic fields. This state emerges at a quantum critical point separating quantum anomalous Hall phases tuned by field angle and orientation, directly linking gap-closing behavior to quantized criticality. Temperature and gate dependent transport measurements, supported by a self consistent approximation model, reveal that electron hole puddles dominate charge transport in this regime, highlighting the essential role of impurity disorder in stabilizing quantized critical transport. These findings establish a tunable experimental framework that connects gap-closing physics with universal conductivity, offering both microscopic insight into critical transport in magnetic topological insulators and a robust platform for probing quantum criticality in topological systems. |
| title | In-Plane Field induced Quantized Longitudinal Conductivity in Magnetic Topological Insulators |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2511.04879 |