Zobrazeno 1 - 10
of 492
pro vyhledávání: '"Ki-Seok Kim"'
Autor:
Geunyong Kim, Jinyoung Yun, Jinho Yang, Ilkyu Yang, Dirk Wulferding, Roman Movshovich, Gil Young Cho, Ki-Seok Kim, Garam Hahn, Jeehoon Kim
Publikováno v:
NPG Asia Materials, Vol 16, Iss 1, Pp 1-8 (2024)
Abstract Geometrically confined superconductors often experience a breakdown in the quantization of magnetic flux owing to the incomplete screening of the supercurrent against field penetration. In this study, we report that magnetic field confinemen
Externí odkaz:
https://doaj.org/article/accc6ef9db864dd09781a33134ba3bed
Autor:
Yusuff Adeyemi Salawu, Dilanath Adhikari, Jin Hee Kim, Jong-Soo Rhyee, Minoru Sasaki, Ki-Seok Kim, Heon-Jung Kim
Publikováno v:
Communications Materials, Vol 4, Iss 1, Pp 1-10 (2023)
Abstract Topological phase transitions, influenced by magnetic fields, dopants, pressure, and temperature, create Berry curvature in band structures, challenging to detect due to resolution and scattering issues in spectroscopy and transport. Here, w
Externí odkaz:
https://doaj.org/article/99b5981b32ef4ccebb126bad5eb4fbab
Autor:
Jae-Ho Han, Seung-Hwan Do, Kwang-Yong Choi, Sang-Youn Park, Jae-You Kim, Sungdae Ji, Ki-Seok Kim, Jae-Hoon Park
Publikováno v:
npj Quantum Materials, Vol 8, Iss 1, Pp 1-12 (2023)
Abstract We report a quantum criticality crossover representing two different universal scaling behaviors in a Kitaev quantum magnetic material α-RuCl3. α-RuCl3 presents both a symmetry-breaking antiferromagnetic order and a long-range entangled to
Externí odkaz:
https://doaj.org/article/7c24544a732c42328aa9714dadfd8f50
Autor:
Jong E. Han, Camille Aron, Xi Chen, Ishiaka Mansaray, Jae-Ho Han, Ki-Seok Kim, Michael Randle, Jonathan P. Bird
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-8 (2023)
Abstract The significant discrepancy observed between the predicted and experimental switching fields in correlated insulators under a DC electric field far-from-equilibrium necessitates a reevaluation of current microscopic understanding. Here we sh
Externí odkaz:
https://doaj.org/article/539ac5c5546f45baad9f3d56bc63314e
Autor:
Jin-Hyeon Jun, Jinsu Kim, Sang Hyun Ji, Sang-Eon Lee, Soo-Whan Kim, Sung Jung Joo, Kyoung-Min Kim, Ki-Seok Kim, Myung-Hwa Jung
Publikováno v:
APL Materials, Vol 11, Iss 2, Pp 021106-021106-6 (2023)
Antiferromagnetic topological insulators have attracted great attention in the condensed matter physics owing to the fundamental interest in exotic quantum states and topological antiferromagnetic spintronics. Starting with the typical topological in
Externí odkaz:
https://doaj.org/article/aff5af5ae0ca4f1a9a06f41aa8337bf8
Autor:
Ki-Seok Kim, Shinsei Ryu
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 5, Pp 1-52 (2021)
Abstract Applying recursive renormalization group transformations to a scalar field theory, we obtain an effective quantum gravity theory with an emergent extra dimension, described by a dual holographic Einstein-Klein-Gordon type action. Here, the d
Externí odkaz:
https://doaj.org/article/1de25f2f9ecb4d2e84a62095f5faea55
Autor:
Hyeon Jung Kim, Ki-Seok Kim
Publikováno v:
New Journal of Physics, Vol 25, Iss 8, p 083029 (2023)
Recently, Zhang–Rice triplet to singlet excitations have been measured experimentally and verified numerically in a van der Waals antiferromagnet NiPS _3 , which reveals a collective local change of an electronic structure. In particular, such nume
Externí odkaz:
https://doaj.org/article/71f9d742b50a4e319d1262e42aa4ff75
Autor:
Soo-Whan Kim, Hoil Kim, Jeong-Kyu Kim, Woo-Suk Noh, Jinsu Kim, Kyoung-Min Kim, Ki-Seok Kim, Jun Sung Kim, Jae-Hoon Park, Myung-Hwa Jung
Publikováno v:
APL Materials, Vol 8, Iss 11, Pp 111108-111108-7 (2020)
Topological antiferromagnetic spintronics is an emerging field due to advantages such as no stray field effect and high-speed dynamics. In bismuth chalcogenide topological insulators, the coexistence of long-range antiferromagnetic order and topologi
Externí odkaz:
https://doaj.org/article/effb6415721e4f0aab2374c9471c7a7e
Autor:
Ki-Seok Kim
Publikováno v:
Nuclear Physics B, Vol 959, Iss , Pp 115144- (2020)
Holographic duality conjecture has been proposed to be a novel non-perturbative theoretical framework for the description of strongly correlated electrons. However, the duality transformation is not specified to cause ambiguity in the application of
Externí odkaz:
https://doaj.org/article/e12485620f6346e082190d72577bc708
Autor:
Doohee Cho, Sangmo Cheon, Ki-Seok Kim, Sung-Hoon Lee, Yong-Heum Cho, Sang-Wook Cheong, Han Woong Yeom
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-6 (2016)
Controlled switching between states in materials with strong electronic correlations can form the basis for functional devices. Here, the authors use a scanning tunnelling microscope tip to switch between a Mott insulator state and a metallic state w
Externí odkaz:
https://doaj.org/article/8047f17bba84489ab8a25c61d226c3b1