S.-W. Cheong

activity

20182022

most citedSoft antiphase tilt of oxygen octahedra in the hybrid improper multiferroic Ca3Mn1.9Ti0.1O7

32 citations · 60 across the 3 of their papers we have counts for

collaborators

Showing cond-mat.mtrl-sciShow all

3 papers · 1 filter

cond-mat.mtrl-sci2023

Electronic and Vibrational Excitations on the Surface of the Three-Dimensional Topological Insulator Bi $_{2}$ Te $_{3 - x}$ Se $_{x}$ (x = 0, 2, 3)

A. Lee, H. -H. Kung, Xueyun Wang +2

We study surface states in the three-dimensional topological insulators Bi $_{2}$ Te $_{3 - x}$ Se $_{x}$ (x = 0, 2, 3) by polarization resolved resonant Raman spectroscopy. By tracking the…

cond-mat.mtrl-sci2023★ 11 cited

Spin-phonon interactions and magnetoelectric coupling in Co $_{4}$ $B_{2}$ O $_{9}$ ( $B$ = Nb, Ta)

K. Park, J. Kim, S. Choi +10

In order to explore the consequences of spin-orbit coupling on spin-phonon interactions in a set of chemically-similar mixed metal oxides, we measured the infrared vibrational prop…

cond-mat.mtrl-sci2019★ 15 cited

Nature of the Structural Symmetries Associated with Hybrid Improper Ferroelectricity in Ca3X2O7

S. Liu, H. Zhang, S. Ghose +8

In hybrid improper ferroelectric systems, polarization arises from the onset of successive nonpolar lattice modes. In this work, measurements and modeling were performed to determi…

Electronic and Vibrational Excitations on the Surface of the Three-Dimensional Topological Insulator Bi2​Te3−x​Sex​ (x = 0, 2, 3)

Spin-phonon interactions and magnetoelectric coupling in Co4​B2​O9​ (B = Nb, Ta)

Nature of the Structural Symmetries Associated with Hybrid Improper Ferroelectricity in Ca3X2O7

Electronic and Vibrational Excitations on the Surface of the Three-Dimensional Topological Insulator Bi $_{2}$ Te $_{3 - x}$ Se $_{x}$ (x = 0, 2, 3)

Spin-phonon interactions and magnetoelectric coupling in Co $_{4}$ $B_{2}$ O $_{9}$ ( $B$ = Nb, Ta)