15 citations · 43 across the 7 of their papers we have counts for
7 papers
Comparative study of high-Tc superconductivity in H3S and H3P
Hyungju Oh, Sinisa Coh, Marvin L. Cohen
We report on a comparative study of the electronic structure, phonon spectra, and superconducting properties for recently discovered superconducting hydrides, H3S and H3P. While th…
Inhibiting Klein tunneling in graphene p-n junction without an external magnetic field
Hyungju Oh, Sinisa Coh, Young-Woo Son +1
We study by first-principles calculations a densely packed island of organic molecules (F4TCNQ) adsorbed on graphene. We find that with electron doping the island naturally forms a…
Calculation of the specific heat of optimally K-doped BaFeAs
Hyungju Oh, Sinisa Coh, Marvin L. Cohen
The calculated specific heat of optimally K-doped BaFeAs in density functional theory is about five times smaller than that found in the experiment. We report that by adjus…
Brief review on iron-based superconductors: are there clues for unconventional superconductivity?
Hyungju Oh, Jisoo Moon, Donghan Shin +2
Study of superconductivity in layered iron-based materials was initiated in 2006 by Hosono's group, and boosted in 2008 by the superconducting transition temperature, Tc, of 26 K i…
Density functional study of orbital-selective magnetism in FeAs-based superconductors
Hyungju Oh, Donghan Shin, Hyoung Joon Choi
We performed spin-polarized density functional calculations of lanthanide-series (Ln) iron oxypnictides LnFeAsO (Ln=La, Ce, Pr, Nd, Sm, and Gd) with constrained Fe magnetic moments…
Electronic Structure Studies of Detwinned BaFeAs by Photoemission
Y. K. Kim, Hyungju Oh, Chul Kim +10
We performed angle resolved photoelectron spectroscopy (ARPES) studies on mechanically detwinned BaFe2As2. We observe clear band dispersions and the shapes and characters of the Fe…
Fermi surfaces and quantum oscillations in underdoped high-Tc superconductors YBa2Cu3O6.5 and YBa2Cu4O8
Hyungju Oh, Hyoung Joon Choi, Steven G. Louie +1
We study underdoped high-Tc superconductors YBa2Cu3O6.5 and YBa2Cu4O8 using first-principles pseudopotential methods with additional Coulomb interactions at the Cu atoms, and obtai…