Probing topological phase transitions via quantum reflection in the graphene family materials
نویسندگان
چکیده
We theoretically investigate the quantum reflection of different atoms by two-dimensional (2D) materials graphene family (silicene, germanene, and stanene), subjected to an external electric field circularly polarized light. By using Lifshitz theory compute Casimir-Polder potential, which ensures that our predictions apply all regimes atom-2D surface distances, we demonstrate probability exhibits distinctive, unambiguous signatures topological phase transitions occur in 2D materials. also show can be highly tunable these agents, depending on atom-surface combination, reaching a variation 40% for Rubidium presence stanene sheet. Our findings attest not only dispersive forces play crucial role reflection, but comprehensively efficiently probed via interactions at nanoscale.
منابع مشابه
Multifarious topological quantum phase transitions in two-dimensional topological superconductors
We study the two-dimensional topological superconductors of spinless fermions in a checkerboard-lattice Chern-insulator model. With the short-range p-wave superconducting pairing, multifarious topological quantum phase transitions have been found and several phases with high Chern numbers have been observed. We have established a rich phase diagram for these topological superconducting states. ...
متن کاملCasimir force phase transitions in the graphene family
The Casimir force is a universal interaction induced by electromagnetic quantum fluctuations between any types of objects. The expansion of the graphene family by adding silicene, germanene and stanene (2D allotropes of Si, Ge, and Sn), lends itself as a platform to probe Dirac-like physics in honeycomb staggered systems in such a ubiquitous interaction. We discover Casimir force phase transiti...
متن کاملQuantum phase transitions and topological proximity effects in graphene nanoribbon heterostructures.
Topological insulators are bulk insulators that possess robust chiral conducting states along their interfaces with normal insulators. A tremendous research effort has recently been devoted to topological insulator-based heterostructures, in which conventional proximity effects give rise to a series of exotic physical phenomena. Here we establish the potential existence of topological proximity...
متن کاملSupplementary materials: Observation of topological transitions in interacting quantum circuits
P. Roushan1,4,∗ C. Neill1,∗ Y. Chen1,4,∗ M. Kolodrubetz, C. M. Quintana, N. Leung, M. Fang, R. Barends, B. Campbell, Z. Chen, B. Chiaro, A. Dunsworth, E. Je rey, J. Kelly, A. Megrant, J. Mutus, P. O'Malley, D. Sank, A. Vainsencher, J. Wenner, T. White, A. Polkovnikov, A. N. Cleland, and John M. Martinis1,3† Department of Physics, University of California, Santa Barbara,CA 93106-9530, USA Depart...
متن کاملNovel Quantum Criticality in Two Dimensional Topological Phase transitions
Topological quantum phase transitions intrinsically intertwine self-similarity and topology of many-electron wave-functions, and divining them is one of the most significant ways to advance understanding in condensed matter physics. Our focus is to investigate an unconventional class of the transitions between insulators and Dirac semimetals whose description is beyond conventional pseudo relat...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review B
سال: 2021
ISSN: ['1098-0121', '1550-235X', '1538-4489']
DOI: https://doi.org/10.1103/physrevb.104.075409