Zobrazeno 1 - 10
of 2 107
pro vyhledávání: '"C. Morais"'
Publikováno v:
Physical Review Research, Vol 5, Iss 3, p 033128 (2023)
The dynamics of a magnetic moment or spin are of high interest to applications in technology. Dissipation in these systems is therefore of importance for improvement of efficiency of devices, such as the ones proposed in spintronics. A large spin in
Externí odkaz:
https://doaj.org/article/ec2ab3c3fd124b5fab101fe3d750f387
Autor:
Di Salvo, E., Moustaj, A., Xu, C., Fritz, L., Mitchell, A. K., Smith, C. Morais, Schuricht, D.
The interacting SSH model provides an ideal ground to study the interplay between topologically insulating phases and electron-electron interactions. We study the polarization density as a topological invariant and provide an analytic treatment of it
Externí odkaz:
http://arxiv.org/abs/2408.01421
Topological phase transitions are found in a variety of systems and were shown to be deeply related with a thermodynamic description through scaling relations. Here, we investigate the entanglement entropy, which is a quantity that captures the centr
Externí odkaz:
http://arxiv.org/abs/2406.13087
We demonstrate that rotation symmetry is not a necessary requirement for the existence of fractional corner charges in Cn-symmetric higher-order topological crystalline insulators. Instead, it is sufficient to have a latent rotation symmetry, which m
Externí odkaz:
http://arxiv.org/abs/2405.02704
By implementing a charge pumping scheme for one-dimensional aperiodic chains, we confirm the existence of topological phases in these systems whenever their finite-size realizations admit inversion symmetry. These phases are usually characterized by
Externí odkaz:
http://arxiv.org/abs/2404.14916
Autor:
Canyellas, R., Liu, Chen, Arouca, R., Eek, L., Wang, Guanyong, Yin, Yin, Guan, Dandan, Li, Yaoyi, Wang, Shiyong, Zheng, Hao, Liu, Canhua, Jia, Jinfeng, Smith, C. Morais
Topological materials hosting metallic edges characterized by integer quantized conductivity in an insulating bulk have revolutionized our understanding of transport in matter. The topological protection of these edge states is based on symmetries an
Externí odkaz:
http://arxiv.org/abs/2309.09860
Publikováno v:
Physical Review Research, Vol 2, Iss 2, p 023097 (2020)
We investigate the order of the topological quantum phase transition in a two-dimensional quadrupolar topological insulator within a thermodynamic approach. Using numerical methods, we separate the bulk, edge, and corner contributions to the grand po
Externí odkaz:
https://doaj.org/article/5c257a62b7a944e5ab8af53584a5260c
Publikováno v:
Phys. Rev. Research 6, 023202 (2024)
Topological insulators have been studied intensively over the last decades. Earlier research focused on Hermitian Hamiltonians, but recently, peculiar and interesting properties were found by introducing non-Hermiticity. In this work, we apply a quan
Externí odkaz:
http://arxiv.org/abs/2305.17675
Autor:
Slootman, E., Cherifi, W., Eek, L., Arouca, R., Bergholtz, E. J., Bourennane, M., Smith, C. Morais
Publikováno v:
Phys. Rev. Research 6, 023140 (2024)
Symmetry is one of the cornerstones of modern physics and has profound implications in different areas. In symmetry-protected topological systems, symmetries are responsible for protecting surface states, which are at the heart of the fascinating pro
Externí odkaz:
http://arxiv.org/abs/2304.05748
Autor:
M. R. Slot, S. N. Kempkes, E. J. Knol, W. M. J. van Weerdenburg, J. J. van den Broeke, D. Wegner, D. Vanmaekelbergh, A. A. Khajetoorians, C. Morais Smith, I. Swart
Publikováno v:
Physical Review X, Vol 9, Iss 1, p 011009 (2019)
Artificial electronic lattices, created atom by atom in a scanning tunneling microscope, have emerged as a highly tunable platform to realize and characterize the lowest-energy bands of novel lattice geometries. Here, we show that artificial electron
Externí odkaz:
https://doaj.org/article/7c5191ddb6f64e92b36f6e5bba897b71