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Showing 2018 · cond-mat.mes-hallShow all

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cond-mat.mes-hall2018★ 10 cited

Bogolon-mediated electron scattering in graphene in hybrid Bose-Fermi systems

Meng Sun, K. H. A. Villegas, V. M. Kovalev +1

We report on an unconventional mechanism of electron scattering in graphene in hybrid Bose- Fermi systems. We study energy-dependent electron relaxation time, accounting for the pr…

cond-mat.mes-hall2018★ 12 cited

Photogalvanic currents in dynamically gapped Dirac materials

V. M. Kovalev, I. G. Savenko

We develop a microscopic theory of an unconventional photogalvanic effect in two-dimensional materials with the Dirac energy spectrum of the carriers of charge under strong driving…

cond-mat.mes-hall2018★ 22 cited

Splitting of conductance resonance through a magnetic quantum dot in graphene

Nojoon Myoung, Jung-Wan Ryu, Hee Chul Park +2

We report a dual resonance feature in ballistic conductance through a quantum Hall graphene nanoribbon with a magnetic quantum dot. Such a magnetic quantum dot localizes Dirac ferm…

cond-mat.mes-hall2018★ 51 cited

Magnon topology and thermal Hall effect in trimerized triangular lattice antiferromagnet

Kyung-Su Kim, Ki Hoon Lee, Suk Bum Chung +1

The non-trivial magnon band topology and its consequent responses have been extensively studied in two-dimensional magnetisms. However, the triangular lattice antiferromagnet (TLAF…

cond-mat.mes-hall2018★ 32 cited

Optical conductivity of black phosphorus with a tunable electronic structure

Jiho Jang, Seongjin Ahn, Hongki Min

Black phosphorus (BP) is a two-dimensional layered material composed of phosphorus atoms. Recently, it was demonstrated that external perturbations such as an electric field close…

cond-mat.mes-hall2018★ 14 cited

Necessary and sufficient conditions for flat bands in -dimensional -band lattices with complex-valued nearest-neighbour hopping

L. A. Toikka, A. Andreanov

We formulate the necessary and sufficient conditions for the existence of dispersionless energy eigenvalues (so-called `flat bands') and their associated compact localized eigensta…