دورية أكاديمية
Pressure-induced concomitant topological and metal-insulator quantum phase transitions in Ce3Pd3Bi4
| العنوان: | Pressure-induced concomitant topological and metal-insulator quantum phase transitions in Ce3Pd3Bi4 |
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| المؤلفون: | Chenchao Xu, Chao Cao, Jian-Xin Zhu |
| المصدر: | npj Quantum Materials, Vol 7, Iss 1, Pp 1-5 (2022) |
| بيانات النشر: | Nature Portfolio, 2022. |
| سنة النشر: | 2022 |
| المجموعة: | LCC:Materials of engineering and construction. Mechanics of materials LCC:Atomic physics. Constitution and properties of matter |
| مصطلحات موضوعية: | Materials of engineering and construction. Mechanics of materials, TA401-492, Atomic physics. Constitution and properties of matter, QC170-197 |
| الوصف: | Abstract The electronic property and magnetic susceptibility of Ce3Pd3Bi4 were systemically investigated from 18 to 290 K for varying values of cell volume using dynamic mean-field theory coupled with density functional theory. By extrapolating to zero temperature, the ground state of Ce3Pd3Bi4 at ambient pressure is found to be a correlated semimetal due to insufficient hybridization. Upon applying pressure, the hybridization strength increases and a crossover to the Kondo insulator is observed at finite temperatures. The characteristic temperature signaling the formation of Kondo singlet, as well as the characteristic temperature associated with f-electron delocalization–localization change, simultaneously vanishes around a critical volume of 0.992 V 0, suggesting that such metal–insulator transition is possibly associated with a quantum critical point. Finally, Wilson’s loop calculations indicate that the Kondo insulating side is topologically trivial, thus a topological transition also occurs across the quantum critical point. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2397-4648 |
| العلاقة: | https://doaj.org/toc/2397-4648Test |
| DOI: | 10.1038/s41535-022-00427-9 |
| الوصول الحر: | https://doaj.org/article/fdf9985f888b4e26895555cd0a1045b1Test |
| رقم الانضمام: | edsdoj.fdf9985f888b4e26895555cd0a1045b1 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 23974648 |
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| DOI: | 10.1038/s41535-022-00427-9 |