Altermagnetic topological insulator with C $\mathcal{C}$ -paired spin-valley locking
Abstract Altermagnetism emerges as the third fundamental collinear magnetism recently. Associating nontrivial topology and quantum orders to this newly established magnetism is an important physical topic and may lead to interesting physics such as unusual quantum spin Hall effect with time-reversal...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Springer
2024-11-01
|
| Series: | Quantum Frontiers |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/s44214-024-00070-4 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1846164971657887744 |
|---|---|
| author | Hai-Yang Ma Jin-Feng Jia |
| author_facet | Hai-Yang Ma Jin-Feng Jia |
| author_sort | Hai-Yang Ma |
| collection | DOAJ |
| description | Abstract Altermagnetism emerges as the third fundamental collinear magnetism recently. Associating nontrivial topology and quantum orders to this newly established magnetism is an important physical topic and may lead to interesting physics such as unusual quantum spin Hall effect with time-reversal-symmetry breaking, topological superconductivity and spin-valley locking. Here, we first generalize the spinless Haldane model from the usual honeycomb lattice to the otherwise simpler square lattice. We then restore the doublet spin degree of freedom, the resulted spinful model resembles the Kane-Mele model and is able to describe the unprecedented physics which intertwine C $\mathcal{C}$ -paired spin-valley locking, Dirac physics, nontrivial band topology and altermagnetism. Our works shed lights on future studies and applications in spintronics and valleytronics for altermagnetic materials, the lattice theories developed in this article may also find their broad applications to optical lattice with ultra cold atoms, photonic lattice, etc. other than the usual electronic systems. |
| format | Article |
| id | doaj-art-5a06d6fe8fca48198f960ef34aac1f39 |
| institution | Kabale University |
| issn | 2731-6106 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Springer |
| record_format | Article |
| series | Quantum Frontiers |
| spelling | doaj-art-5a06d6fe8fca48198f960ef34aac1f392024-11-17T12:39:59ZengSpringerQuantum Frontiers2731-61062024-11-01311510.1007/s44214-024-00070-4Altermagnetic topological insulator with C $\mathcal{C}$ -paired spin-valley lockingHai-Yang Ma0Jin-Feng Jia1Quantum Science Center of Guangdong-Hong Kong-Macao Greater Bay AreaQuantum Science Center of Guangdong-Hong Kong-Macao Greater Bay AreaAbstract Altermagnetism emerges as the third fundamental collinear magnetism recently. Associating nontrivial topology and quantum orders to this newly established magnetism is an important physical topic and may lead to interesting physics such as unusual quantum spin Hall effect with time-reversal-symmetry breaking, topological superconductivity and spin-valley locking. Here, we first generalize the spinless Haldane model from the usual honeycomb lattice to the otherwise simpler square lattice. We then restore the doublet spin degree of freedom, the resulted spinful model resembles the Kane-Mele model and is able to describe the unprecedented physics which intertwine C $\mathcal{C}$ -paired spin-valley locking, Dirac physics, nontrivial band topology and altermagnetism. Our works shed lights on future studies and applications in spintronics and valleytronics for altermagnetic materials, the lattice theories developed in this article may also find their broad applications to optical lattice with ultra cold atoms, photonic lattice, etc. other than the usual electronic systems.https://doi.org/10.1007/s44214-024-00070-4AltermagnetismTopological insulatorSpin-valley lockingDirac physics |
| spellingShingle | Hai-Yang Ma Jin-Feng Jia Altermagnetic topological insulator with C $\mathcal{C}$ -paired spin-valley locking Quantum Frontiers Altermagnetism Topological insulator Spin-valley locking Dirac physics |
| title | Altermagnetic topological insulator with C $\mathcal{C}$ -paired spin-valley locking |
| title_full | Altermagnetic topological insulator with C $\mathcal{C}$ -paired spin-valley locking |
| title_fullStr | Altermagnetic topological insulator with C $\mathcal{C}$ -paired spin-valley locking |
| title_full_unstemmed | Altermagnetic topological insulator with C $\mathcal{C}$ -paired spin-valley locking |
| title_short | Altermagnetic topological insulator with C $\mathcal{C}$ -paired spin-valley locking |
| title_sort | altermagnetic topological insulator with c mathcal c paired spin valley locking |
| topic | Altermagnetism Topological insulator Spin-valley locking Dirac physics |
| url | https://doi.org/10.1007/s44214-024-00070-4 |
| work_keys_str_mv | AT haiyangma altermagnetictopologicalinsulatorwithcmathcalcpairedspinvalleylocking AT jinfengjia altermagnetictopologicalinsulatorwithcmathcalcpairedspinvalleylocking |