تقرير
Delicate Topology of Luttinger Semimetal
| العنوان: | Delicate Topology of Luttinger Semimetal |
|---|---|
| المؤلفون: | Zhu, Penghao, Zhang, Rui-Xing |
| سنة النشر: | 2023 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Mesoscale and Nanoscale Physics, Condensed Matter - Materials Science, Condensed Matter - Strongly Correlated Electrons |
| الوصف: | Recent advances in delicate topology have expanded the classification of topological bands, but its presence in solid-state materials remains elusive. Here we show that delicate topology naturally emerges in the Luttinger-Kohn model that describes many semiconductors and semimetals. In particular, the Luttinger semimetal is found to be a quantum critical point leading to a quantized jump of an integer-valued delicate topological invariant. Away from this criticality, we have identified new types of electronic insulators and semimetals with intertwined stable and delicate topologies. They all carry gapless surface states that transform anomalously under rotation symmetry. Our work provides a starting point for exploring delicate topological phenomena in quantum materials. Comment: 10 + 6 pages, 4 + 5 figures |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2308.05793 |
| رقم الأكسشن: | edsarx.2308.05793 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |