Zobrazeno 1 - 10
of 119
pro vyhledávání: '"Park, Kisoo"'
Autor:
Park, Pyeongjae, Park, Kisoo, Oh, Joosung, Lee, Ki Hoon, Leiner, Jonathan C., Sim, Hasung, Kim, Taehun, Jeong, Jaehong, Rule, Kirrily C., Kamazawa, Kazuya, Iida, Kazuki, Perring, T. G., Woo, Hyungje, Cheong, S. -W., Zhitomirsky, M. E., Chernyshev, A. L., Park, Je-Geun
Publikováno v:
Nature Communications 12, 2306 (2021)
Novel effects induced by nonmagnetic impurities in frustrated magnets and quantum spin liquid represent a highly nontrivial and interesting problem. A theoretical proposal of extended modulated spin structures induced by doping of such magnets, disti
Externí odkaz:
http://arxiv.org/abs/2103.05936
Autor:
Kim, Taehun, Kim, Choong H., Jeong, Jaehong, Park, Pyeongjae, Park, Kisoo, Lee, Ki Hoon, Leiner, Jonathan C., Ishikawa, Daisuke, Baron, Alfred Q. R., Hiroi, Zenji, Park, Je-Geun
Spin-orbit coupling (SOC) is essential in understanding the properties of 5d transition metal compounds, whose SOC value is large and almost comparable to other key parameters. Over the past few years, there have been numerous studies on the SOC-driv
Externí odkaz:
http://arxiv.org/abs/2010.10684
Autor:
Park, Pyeongjae, Park, Kisoo, Kim, Taehun, Kousaka, Yusuke, Lee, Ki Hoon, Perring, T. G., Jeong, Jaehong, Stuhr, Uwe, Akimitsu, Jun, Kenzelmann, Michel, Park, Je-Geun
Non-collinear magnetic order arises for various reasons in several magnetic systems and exhibits interesting spin dynamics. Despite its ubiquitous presence, little is known of how magnons, otherwise stable quasiparticles, decay in these systems, part
Externí odkaz:
http://arxiv.org/abs/2006.11530
Autor:
Kim, Kangwon, Lim, Soo Yeon, Kim, Jungcheol, Lee, Jae-Ung, Lee, Sungmin, Kim, Pilkwang, Park, Kisoo, Son, Suhan, Park, Cheol-Hwan, Park, Je-Geun, Cheong, Hyeonsik
Magnetic ordering in the two-dimensional limit has been one of the most important issues in condensed matter physics for the past several decades. The recent discovery of new magnetic van der Waals materials heralds a much-needed easy route for the s
Externí odkaz:
http://arxiv.org/abs/1906.05802
Autor:
Kim, Kangwon, Lim, Soo Yeon, Lee, Jae-Ung, Lee, Sungmin, Kim, Tae Yun, Park, Kisoo, Jeon, Gun Sang, Park, Cheol-Hwan, Park, Je-Geun, Cheong, Hyeonsik
Publikováno v:
Nature Communications volume 10, Article number: 345 (2019)
How a certain ground state of complex physical systems emerges, especially in two-dimensional materials, is a fundamental question in condensed-matter physics. A particularly interesting case is systems belonging to the class of XY Hamiltonian where
Externí odkaz:
http://arxiv.org/abs/1901.10890
Publikováno v:
Journal of the Physical Society of Japan, 88, 081003 (2019)
Elementary quasiparticles in solids such as phonons and magnons occasionally have nontrivial interactions between them, as well as among themselves. As a result, their energy eigenvalues are renormalized, the quasiparticles spontaneously decay into a
Externí odkaz:
http://arxiv.org/abs/1810.00498
Autor:
Kim, Taehun, Leiner, Jonathan C., Park, Kisoo, Oh, Joosung, Sim, Hasung, Iida, Kazuki, Kamazawa, Kazuya, Park, Je-Geun
Hexagonal HoMnO3, a two-dimensional Heisenberg antiferromagnet, has been studied via inelastic neutron scattering. A simple Heisenberg model with a single-ion anisotropy describes most features of the spin-wave dispersion curves. However, there is sh
Externí odkaz:
http://arxiv.org/abs/1805.08919
Autor:
Leiner, J. C., Kim, Taehun, Park, Kisoo, Oh, Joosung, Perring, T. G., Walker, H. C., Xu, X., Wang, Y., Cheong, S. -W., Park, Je-Geun
Publikováno v:
Phys. Rev. B 98, 134412 (2018)
Non-collinear two-dimensional triangular lattice antiferromagnets (2D TLAF) are currently an area of very active research due to their unique magnetic properties, which lead to non-trivial quantum effects that experimentally manifest themselves in th
Externí odkaz:
http://arxiv.org/abs/1805.03912
Publikováno v:
Phys. Rev. B 97, 180401 (2018)
We investigated the topological property of magnon bands in the collinear magnetic orders of zigzag and stripy phases for the antiferromagnetic honeycomb lattice and identified Berry curvature and symmetry constraints on the magnon band structure. Di
Externí odkaz:
http://arxiv.org/abs/1712.09801
Autor:
Park, Kisoo, Sim, Hasung, Leiner, Jonathan C., Yoshida, Yoshiyuki, Jeong, Jaehong, Yano, Shin-ichiro, Gardner, Jason, Bourges, Philippe, Klicpera, Milan, Sechovský, Vladimír, Boehm, Martin, Park, Je-Geun
YFeO$_3$ and LaFeO$_3$ are members of the rare-earth orthoferrites family with \textit{Pbnm} space group. Using inelastic neutron scattering, the low-energy spin excitations have been measured around magnetic Brillouin zone center. Splitting of magno
Externí odkaz:
http://arxiv.org/abs/1705.09441