Zobrazeno 1 - 10
of 469
pro vyhledávání: '"Do, In Hwan"'
Autor:
Madhogaria, Richa P., Mozaffari, Shirin, Zhang, Heda, Meier, William R., Do, Seung-Hwan, Xue, Rui, Matsuoka, Takahiro, Mandrus, David G.
Thermal and thermoelectric measurements are known as powerful tools to uncover the physical properties of quantum materials due to their sensitivity towards the scattering and chirality of heat carriers. We use these techniques to confirm the presenc
Externí odkaz:
http://arxiv.org/abs/2305.06496
Autor:
Paddison, Joseph A. M., Zhang, Hao, Yan, Jiaqiang, Cliffe, Matthew J., Do, Seung-Hwan, Gao, Shang, Stone, Matthew B., Dahlbom, David, Barros, Kipton, Batista, Cristian D., Christianson, Andrew D.
Magnetic materials with noncoplanar magnetic structures can show unusual physical properties driven by nontrivial topology. Topologically-active states are often multi-q structures, which are challenging to stabilize in models and to identify in mate
Externí odkaz:
http://arxiv.org/abs/2301.11395
Autor:
Lee, Minseong, Schoenemann, Rico, Zhang, Hao, Dahlbom, David, Jang, Tae-Hwan, Do, Seung-Hwan, Christianson, Andrew D., Cheong, Sang-Wook, Park, Jae-Hoon, Brosha, Eric, Jaime, Marcelo, Barros, Kipton, Batista, Cristian D., Zapf, Vivien S.
We present a high-field study of the strongly anisotropic easy-plane square lattice $S$ = 2 quantum magnet Ba$_{2}$FeSi$_{2}$O$_{7}$. This compound is a rare high-spin antiferromagnetic system with very strong easy-plane anisotropy, such that the int
Externí odkaz:
http://arxiv.org/abs/2210.14323
Autor:
Do, Seung-Hwan, Zhang, Hao, Dahlbom, David A., Williams, Travis J., Garlea, V. Ovidiu, Hong, Tao, Jang, Tae-Hwan, Cheong, Sang-Wook, Park, Jae-Hoon, Barros, Kipton, Batista, Cristian D., Christianson, Andrew D.
Quantum magnets admit more than one classical limit and $N$-level systems with strong single-ion anisotropy are expected to be described by a classical approximation based on SU($N$) coherent states. Here we test this hypothesis by modeling finite te
Externí odkaz:
http://arxiv.org/abs/2205.11770
Autor:
Do, Seung-Hwan, Paddison, Joseph A. M., Sala, Gabriele, Williams, Travis J., Kaneko, Koji, Kuwahara, Keitaro, May, A. F., Yan, Jiaqiang, McGuire, Michael A., Stone, Matthew B., Lumsden, Mark D., Christianson, Andrew D.
For topological magnon spectra, determining and explaining the presence of a gap at a magnon crossing point is a key to characterize the topological properties of the system. An inelastic neutron scattering study of a single crystal is a powerful exp
Externí odkaz:
http://arxiv.org/abs/2204.03720
Autor:
Han, Jae-Ho, Do, Seung-Hwan, Choi, Kwang-Yong, Park, Sang-Youn, Kim, Jae-You, Ji, Sungdae, Kim, Ki-Seok, Park, Jae-Hoon
Publikováno v:
npj Quantum Mater. 8, 33 (2023)
We report an unprecedented quantum criticality crossover representing two different universal scaling behaviors in a Kitaev quantum magnetic material $\alpha$-RuCl$_3$. $\alpha$-RuCl$_3$ presents both a symmetry breaking antiferromagnetic order and a
Externí odkaz:
http://arxiv.org/abs/2203.13407
Autor:
Park, Jae Whan, Do, Eui Hwan, Shin, Jin Sung, Song, Sun Kyu, Stetsovych, Oleksandr, Jelinek, Pavel, Yeom, Han Woong
Localized modes in one dimensional topological systems, such as Majonara modes in topological superconductors, are promising platforms for robust information processing. In one dimensional topological insulators, mobile topological solitons are expec
Externí odkaz:
http://arxiv.org/abs/2110.11569
Autor:
Jang, Tae-Hwan, Do, Seung-Hwan, Lee, Minseong, Zapf, Vivien S., Wu, Hui, Brown, Craig M., Christianson, Andrew D., Cheong, Sang-Wook, Park, Jae-Hoon
We report the magnetization ($\chi$, $M$), specific heat ($C_{\text{P}}$), and neutron powder diffraction results on a quasi-two-dimensional $S$ = 2 square lattice antiferromagnet Ba$_2$FeSi$_2$O$_7$ consisting of FeO$_4$ tetragons with a large compr
Externí odkaz:
http://arxiv.org/abs/2108.00999
Autor:
Do, Seung-Hwan, Kaneko, Koji, Kajimoto, Ryoichi, Kamazawa, Kazuya, Stone, Matthew B., Itoh, Shinichi, Masuda, Takatsugu, Samolyuk, German D., Dagotto, Elbio, Meier, William R., Sales, Brian C., Miao, Hu, Christianson, Andrew D.
The kagome lattice is a fertile platform to explore topological excitations with both Fermi-Dirac and Bose-Einstein statistics. While relativistic Dirac Fermions and flat-bands have been discovered in the electronic structure of kagome metals, the sp
Externí odkaz:
http://arxiv.org/abs/2107.08915
Autor:
Rai, Binod K., Pokharel, Ganesh, Arachchige, Hasitha Suriya, Do, Seung-Hwan, Zhang, Qiang, Matsuda, Masaaki, Frontzek, Matthias, Sala, Gabriele, Garlea, V. Ovidiu, Christianson, Andrew D., May, Andrew F.
Publikováno v:
Phys. Rev. B 103, 014426 (2021)
Polar materials can host a variety of topologically significant magnetic phases, which often emerge from a modulated magnetic ground state. Relatively few noncentrosymmetric tetragonal materials have been shown to host topological spin textures and n
Externí odkaz:
http://arxiv.org/abs/2012.10499