Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Nojoon Myoung"'
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-7 (2017)
Abstract We demonstrate mesoscopic transport through quantum states in quasi-1D lattices maintaining the combination of parity and time-reversal symmetries by controlling energy gain and loss. We investigate the phase diagram of the non-Hermitian sys
Externí odkaz:
https://doaj.org/article/8928fc45890a47819e407d4f9fcc695b
Autor:
Nojoon Myoung
Publikováno v:
Journal of the Korean Physical Society. 80:490-495
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::df960a1c7568c2ff4466e2bf945a4f7f
https://doi.org/10.1007/s40042-022-00451-9
https://doi.org/10.1007/s40042-022-00451-9
Publikováno v:
Physical Review Research, Vol 2, Iss 3, p 033149 (2020)
We consider the role of nontriviality resulting from a non-Hermitian Hamiltonian without band topology that conserves twofold PT symmetry assembled by interconnections between a PT-symmetric lattice and its time-reversal partner. Twofold PT symmetry
Externí odkaz:
https://doaj.org/article/74e1d87118ff4874995ba03d9238d4ae
Publikováno v:
Journal of the Korean Physical Society. 78:1208-1214
We analyze the effects of the strain-induced pseudo-magnetic fields (PMFs) originating from nanobubbles (NBs) to examine the possibility for a graphene quantum dot (QD) created by strain engineering. We study the electronic structures and quantum tra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf2eee643dd02eac6df7ee6b7e1eea4c
https://doi.org/10.1007/s40042-021-00196-x
https://doi.org/10.1007/s40042-021-00196-x
Autor:
Nojoon Myoung
Publikováno v:
Current Applied Physics. 23:57-61
Topologically protected chiral states at a mass-inverted quantum dot in graphene are studied by analyzing both tight-binding and kernal polynomial method calculations. The mass-inverted quantum dot is introduced by considering a heterojunction betwee
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7c13c23d4cd947948157503b96beadb8
https://doi.org/10.1016/j.cap.2020.12.018
https://doi.org/10.1016/j.cap.2020.12.018
Publikováno v:
Journal of the Korean Physical Society. 76:318-322
We investigate Dirac fermion transport through opposite quantum Hall edge channels in armchair graphene nanoribbons where a magnetic quantum dot (MQD) is placed between the edges. The resulting conductance shows distinguished resonant features accord
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9303101c70f4d88286e42566104c9064
https://doi.org/10.3938/jkps.76.318
https://doi.org/10.3938/jkps.76.318
Publikováno v:
Quantum Science and Technology. 8:025012
We propose a controllable qubit in a graphene nanobubble with emergent two-level systems induced by pseudo-magnetic fields. We found that double quantum dots can be created by the strain-induced pseudo-magnetic fields of a nanobubble, and that their
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::719a9f404dff06632d759499c8fd26a8
https://doi.org/10.1088/2058-9565/acba40
https://doi.org/10.1088/2058-9565/acba40
Autor:
Gukhyung Ihm, Nojoon Myoung
Publikováno v:
New Physics: Sae Mulli. 69:1129-1134
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::75b89dbf489965bda25931624a2874d4
https://doi.org/10.3938/npsm.69.1129
https://doi.org/10.3938/npsm.69.1129
Publikováno v:
Physica E: Low-dimensional Systems and Nanostructures. 137:114941
We have studied topological edge states in bowtie ladders with various edge truncations. The symmetric bowtie ladder, which comprises two trivial Su-Schrieffer-Heeger (SSH) lattices, exhibits an insulator-metal transition with trivial insulating stat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a72270a78cb96a0015d582c78937d4b8
https://doi.org/10.1016/j.physe.2021.114941
https://doi.org/10.1016/j.physe.2021.114941
Publikováno v:
Journal of the Korean Physical Society. 73:940-944
Thermoelectric effects of Dirac fermions through a van der Waals (vdW) heterostructure consisting of graphene and tungsten diselenide (WS2) are theoretically investigated. When the lattice temperature of the top graphene layer differs from that of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f714597c6e56db4054220af193349313
https://doi.org/10.3938/jkps.73.940
https://doi.org/10.3938/jkps.73.940