Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Xiang, Longjun"'
As a fundamental concept in condensed matter physics, quantum geometry within the Riemannian metric elucidates various exotic phenomena, including the Hall effects driven by Berry curvature and quantum metric. In this work, we propose novel quantum g
Externí odkaz:
http://arxiv.org/abs/2409.19551
Drude weight, historically associated with the longitudinal Drude conductivity, can be generalized to describe the transverse or Hall component of the extrinsic conductivity tensor. In particular, transverse Drude weights, such as band geometric quan
Externí odkaz:
http://arxiv.org/abs/2409.05057
The intrinsic spin Hall effect (ISHE) proposed in [\href{https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.92.126603} {Sinova \textit{et al.} Phys. Rev. Lett. \textbf{92}, 126603 (2004)}] is driven by the spin Berry curvature. Herein, we esta
Externí odkaz:
http://arxiv.org/abs/2406.02257
It has been known that the semiclassical theory and the response theory can equivalently give the Drude and the intrinsic anomalous Hall conductivities in the linear order of electric field. However, recent theoretical advances implied that the secon
Externí odkaz:
http://arxiv.org/abs/2404.17086
A dissipationless longitudinal current can be generated by a pure magnetic field through the chiral magnetic effect. Herein, we propose that a pure oscillating magnetic field through Zeeman coupling can further drive an AC magnetic Hall current in tw
Externí odkaz:
http://arxiv.org/abs/2312.04093
Publikováno v:
Front. Phys. 19(3), 33205 (2024)
Physical properties such as the conductivity are usually classified according to the symmetry of the underlying system using Neumann's principle, which gives an upper bound for the number of independent components of the corresponding property tensor
Externí odkaz:
http://arxiv.org/abs/2311.06494
The interplay between spin-orbit interaction (SOI) and magnetism produces interesting phenomena in superconductors. When a two-dimensional (2D) system with strong SOI is coupled to an $s$-wave superconductor, an in-plane magnetic field can drive the
Externí odkaz:
http://arxiv.org/abs/2308.00248
Quantum metric and Berry curvature are the real part and imaginary part of the quantum geometric tensor, respectively. The T-odd (T: time-reversal) nonlinear Hall effect driven by the quantum metric dipole, recently confirmed in Science 381, 181 (202
Externí odkaz:
http://arxiv.org/abs/2307.07145
The DC photocurrent can detect the topology and geometry of quantum materials without inversion symmetry. Herein, we propose that the DC shot noise (DSN), as the fluctuation of photocurrent operator, can also be a diagnostic of quantum materials. Par
Externí odkaz:
http://arxiv.org/abs/2303.09160
Autor:
Wei, Miaomiao, Wang, Luyang, Wang, Bin, Xiang, Longjun, Xu, Fuming, Wang, Baigeng, Wang, Jian
Publikováno v:
Physical Review Letters 130, 036202 (2023)
In time-reversal invariant systems, all charge Hall effects predicted so far are extrinsic effects due to the dependence on the relaxation time. We explore intrinsic Hall signatures by studying quantum noise spectrum of the Hall current in time-rever
Externí odkaz:
http://arxiv.org/abs/2301.11637