Zobrazeno 1 - 10
of 129
pro vyhledávání: '"Rhim, Jun‐Won"'
The geometric characteristics of Bloch wave functions play a crucial role in electronic transport properties. We show that the thermoelectric performance of materials is governed by the geometric structure of Bloch wave functions within the framework
Externí odkaz:
http://arxiv.org/abs/2408.04436
We study the influence of the quantum geometry on the magnetic responses of quadratic band crossing semimetals. More explicitly, we examine the Landau levels, quantum Hall effect, and magnetic susceptibility of a general two-band Hamiltonian that has
Externí odkaz:
http://arxiv.org/abs/2406.05939
We propose a new band engineering scheme on the biphenylene network, a newly synthesized carbon allotrope. First, we investigate the mechanism for the appearance of type II Dirac fermion in a pristine biphenylene network. We show that the essential i
Externí odkaz:
http://arxiv.org/abs/2401.17607
Autor:
Lee, Jae Hyuck, Kim, GwanWoo, Song, Inkyung, Kim, Yejin, Lee, Yeonjae, Yoo, Sung Jong, Cho, Deok-Yong, Rhim, Jun-Won, Jung, Jongkeun, Kim, Gunn, Kim, Changyoung
In condensed matter physics, the Kagome lattice and its inherent flat bands have attracted considerable attention for their potential to host a variety of exotic physical phenomena. Despite extensive efforts to fabricate thin films of Kagome material
Externí odkaz:
http://arxiv.org/abs/2401.00265
Autor:
Park, Jin-Hong, Rhim, Jun-Won
The localized nature of a flat band is understood by the existence of a compact localized eigenstate. However, the localization properties of a partially flat band, ubiquitous in surface modes of topological semimetals, have been unknown. We show tha
Externí odkaz:
http://arxiv.org/abs/2312.14553
A singular flat band(SFB), a distinct class of the flat band, has been shown to exhibit various intriguing material properties characterized by a geometric quantity of the Bloch wave function called the quantum distance. We present a general construc
Externí odkaz:
http://arxiv.org/abs/2305.00448
Autor:
Zhang, Anwei, Rhim, Jun-Won
It is known that materials with broken time-reversal symmetry can have Hall response. Here we show that in addition to the conventional currents, a new type of nonlinear Hall current can occur in the time-reversal breaking materials within the second
Externí odkaz:
http://arxiv.org/abs/2302.02819
We investigate the origin of the ubiquitous existence of flat bands in the network superstructures of atomic chains, where one-dimensional(1D) atomic chains array periodically. While there can be many ways to connect those chains, we consider two rep
Externí odkaz:
http://arxiv.org/abs/2211.15391
Autor:
Zhang, Anwei, Rhim, Jun-Won
Publikováno v:
Communications Physics 5, 195(2022)
In recent years, the spin Hall effect has received great attention because of its potential application in spintronics and quantum information processing and storage. However, this effect is usually studied under the external homogeneous electric fie
Externí odkaz:
http://arxiv.org/abs/2207.01500
Autor:
Song, Limin, Xie, Yuqing, Xia, Shiqi, Tang, Liqin, Song, Daohong, Rhim, Jun-Won, Chen, Zhigang
Noncontractible loop states (NLSs) are recently realized topological entity in flatband lattices, arising typically from band touching at a point where a flat band intersects one or more dispersive bands. There exists also band touching across a plan
Externí odkaz:
http://arxiv.org/abs/2204.13899