Sungkyun Choi

activity

20182021

most citedLattice dynamics and structural transition of the hyperhoneycomb iridate

β

-Li

_{2}

IrO

_{3}

investigated by high-pressure Raman scattering

10 citations · 11 across the 2 of their papers we have counts for

collaborators

7 papers

cond-mat.str-el2021★ 10 cited

Lattice dynamics and structural transition of the hyperhoneycomb iridate $β$ -Li $_{2}$ IrO $_{3}$ investigated by high-pressure Raman scattering

Sungkyun Choi, Heung-Sik Kim, Hun-Ho Kim +8

We report a polarized Raman scattering study of the lattice dynamics of $β$ -Li $_{2}$ IrO $_{3}$ under hydrostatic pressures up to 7.62 GPa. At ambient pressure, $β$ -Li $_{2}$ IrO $_{3}$ exhibit…

cond-mat.str-el2020

Noncollinear antiferromagnetic order in the buckled honeycomb lattice of magnetoelectric Co4Ta2O9 determined by single-crystal neutron diffraction

Sungkyun Choi, Dong Gun Oh, Matthias J. Gutmann +8

Co4Ta2O9 exhibits a three-dimensional magnetic lattice based on the buckled honeycomb motif. It shows unusual magnetoelectric effects, including the sign change and non-linearity.…

cond-mat.supr-con2019

Selective formation of apical oxygen vacancies in La $_{2 - x}$ Sr $_{x}$ CuO $_{4}$

Gideok Kim, Georg Christiani, Gennady Logvenov +4

The superconducting properties of high-\tc\ materials are functions of carriers concentration, which is controlled by the concentration of defects including heterovalent cations, i…

cond-mat.str-el2019★ 1 cited

Highly nonlinear magnetoelectric effect in antiferromagnetic Co4Ta2O9 single crystals

Nara Lee, Dong Gun Oh, Sungkyun Choi +10

Strongly correlated materials with multiple order parameters provide unique insights into the fundamental interactions in condensed matter systems and present opportunities for inn…

cond-mat.str-el2019

Spectroscopic and first principle DFT+eDMFT study of complex structural, electronic, and vibrational properties of $M_{2}$ Mo $_{3}$ O $_{8}$ ( $M$ =Fe, Mn) polar magnets

T. N. Stanislavchuk, G. L. Pascut, A. P. Litvinchuk +8

Optical spectroscopy, X-ray diffraction measurements, density functional theory (DFT) and density functional theory + embedded dynamical mean field theory (DFT+eDMFT) have been use…

cond-mat.str-el2018

Spin dynamics and field-induced magnetic phase transition in the honeycomb Kitaev magnet $α$ -Li $_{2}$ IrO $_{3}$

Sungkyun Choi, S. Manni, J. Singleton +7

The layered honeycomb iridate $α$ -Li $_{2}$ IrO $_{3}$ displays an incommensurate magnetic structure with counterrotating moments on nearest-neighbor sites, proposed to be stabilized by s…

Lattice dynamics and structural transition of the hyperhoneycomb iridate β-Li2​IrO3​ investigated by high-pressure Raman scattering

Noncollinear antiferromagnetic order in the buckled honeycomb lattice of magnetoelectric Co4Ta2O9 determined by single-crystal neutron diffraction

Selective formation of apical oxygen vacancies in La2−x​Srx​CuO4​

Highly nonlinear magnetoelectric effect in antiferromagnetic Co4Ta2O9 single crystals

Spectroscopic and first principle DFT+eDMFT study of complex structural, electronic, and vibrational properties of M2​Mo3​O8​ (M=Fe, Mn) polar magnets

Spin dynamics and field-induced magnetic phase transition in the honeycomb Kitaev magnet α-Li2​IrO3​

Lattice dynamics and structural transition of the hyperhoneycomb iridate $β$ -Li $_{2}$ IrO $_{3}$ investigated by high-pressure Raman scattering

Selective formation of apical oxygen vacancies in La $_{2 - x}$ Sr $_{x}$ CuO $_{4}$

Spectroscopic and first principle DFT+eDMFT study of complex structural, electronic, and vibrational properties of $M_{2}$ Mo $_{3}$ O $_{8}$ ( $M$ =Fe, Mn) polar magnets

Spin dynamics and field-induced magnetic phase transition in the honeycomb Kitaev magnet $α$ -Li $_{2}$ IrO $_{3}$