تقرير
Strain driven emergence of topological non-triviality in YPdBi thin films
| العنوان: | Strain driven emergence of topological non-triviality in YPdBi thin films |
|---|---|
| المؤلفون: | Bhardwaj, Vishal, Bhattacharya, Anupam, Srivastava, Shivangi, Khovaylo, Vladimir V., Sannigrahi, Jhuma, Banerjee, Niladri, Mani, Brajesh K., Chatterjee, Ratnamala |
| سنة النشر: | 2020 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Materials Science, Condensed Matter - Superconductivity |
| الوصف: | Half-Heusler compounds exhibit a remarkable variety of emergent properties such as heavy-fermion behaviour, unconventional superconductivity and magnetism. Several of these compounds have been predicted to host topologically non-trivial electronic structures. Remarkably, recent theoretical studies have indicated the possibility to induce non-trivial topological surface states in an otherwise trivial half-Heusler system by strain engineering. Here, using magneto-transport measurements and first principles DFT-based simulations, we demonstrate topological surface states on strained [110] oriented thin films of YPdBi grown on (100) MgO. These topological surface states arise in an otherwise trivial semi-metal purely driven by strain. Furthermore, we observe the onset of superconductivity in these strained films highlighting the possibility of engineering a topological superconducting state. Our results demonstrate the critical role played by strain in engineering novel topological states in thin film systems for developing next-generation spintronic devices. Comment: 20 pages, 5 Figures |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2009.03018 |
| رقم الأكسشن: | edsarx.2009.03018 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |