11 citations · 22 across the 6 of their papers we have counts for
6 papers
Nematic response revealed by coherent phonon oscillations in BaFeAs
Min-Cheol Lee, Inho Kwak, Yeongseon Lee +5
We investigate coherent phonon oscillations of BaFeAs using optical pump-probe spectroscopy. Time-resolved optical reflectivity shows periodic modulations due to c…
Ultrafast dynamics in the Lifshitz-type 5 pyrochlore antiferromagnet CdOsO
Inho Kwak, Min-Cheol Lee, Byung Cheol Park +7
We investigate the ultrafast dynamics of CdOsO, a prototype material showing a Lifshitz-type transition as a function of temperature. In the paramagnetic metallic state…
Revealing electrically undetectable room temperature surface-mobility of bulky topological insulators by spectroscopic techniques
Bumjoo Lee, Jinsu Kim, Jonghyeon Kim +11
High surface-mobility, which is attributable to topological protection, is a trademark of three-dimensional topological insulators (3DTIs). Exploiting surface-mobility indicates su…
Abnormal flip in coherent phonon oscillations of CaRuO
Min-Cheol Lee, Choong H. Kim, Inho Kwak +9
We employ an optical pump-probe technique to study coherent phonon oscillations in CaRuO. We find that oscillation-amplitude of an symmetric phonon mode is strongly s…
Electrical Control of Broadband Terahertz Wave Transmission with Two-Terminal Graphene Oxide Devices
Seungwoo Lee, Kyung Eun Lee, Won Jun Lee +4
Carbon nanomaterials such as carbon nanotubes and graphene have proved to be efficient building blocks for active optoelectronic devices. Especially, the exotic properties of cryst…
Double Fano resonances in a composite metamaterial possessing tripod plasmonic resonances
Y. U. Lee, E. Y. Choi, E. S. Kim +7
By embedding four-rod resonators inside double-split ring resonators superlattice, a planar composite metamaterial possessing tripod plasmonic resonances is fabricated. Double Fano…