92 citations · 225 across the 9 of their papers we have counts for
10 papers
Origin of superionic state in Earth's inner core
Ina Park, Yu He, Ho-kwang Mao +2
Earth's inner core (IC) serves as a reservoir for volatile elements, which significantly affects its behavior and properties. Recent studies suggest that superionicity can be obser…
Oxygen-driven enhancement of electron correlation in hexagonal iron at Earth's inner core conditions
Bo Gyu Jang, Yu He, Ji Hoon Shim +2
Earth's inner core consists of mainly iron with a bit of light elements. Understanding of its structure and related physical properties has been elusive for both experiment and the…
Superionic hydrogen in Earth's deep interior
Yu He, Duck Young Kim, Chris J. Pickard +3
Superionic hydrogen was previously thought to be an exotic state predicted and confirmed only in pure H2O ice. In Earth's deep interior, H2O exists in the form of O-H groups in ult…
Electronic Spin transition in FeO: evidence for Fe(II) with peroxide O
Bo Gyu Jang, Jin Liu, Qingyang Hu +5
The discovery of FeO containing more oxygen than hematite (FeO) that was previously believed to be the most oxygen rich iron compounds, has important implications…
Enhanced Thermoelectric Properties in a New Silicon Crystal Si24 with Intrinsic Nanoscale Porous Structure
Kisung Chae, Seoung-Hun Kang, Seon-Myeong Choi +2
Thermoelectric device is a promising next-generation energy solution owing to its capability to transform waste heat into useful electric energy, which can be realized in materials…
Atomically flat two-dimensional silicon crystals with versatile electronic properties
Kisung Chae, Duck Young Kim, Young-Woo Son
Silicon (Si) is one of the most extensively studied materials owing to its significance to semiconductor science and technology. While efforts to find a new three-dimensional (3D)…
Metal-Insulator Transition and the Role of Electron Correlation in FeO2
Bo Gyu Jang, Duck Young Kim, Ji Hoon Shim
Iron oxide is a key compound to understand the state of the deep Earth. It has been believed that previously known oxides such as FeO and Fe2O3 will be dominant at the mantle condi…
Synthesis of Sodium Polyhydrides at High Pressures
Viktor V. Struzhkin, DuckYoung Kim, Elissaios Stavrou +6
The only known compound of sodium and hydrogen is archetypal ionic NaH. Application of high pressure is known to promote states with higher atomic coordination, but extensive searc…
Ytterbium-driven strong enhancement of electron-phonon coupling in graphene
Choongyu Hwang, Duck Young Kim, D. A. Siegel +7
We present high-resolution angle-resolved photoemission spectroscopy study in conjunction with first principles calculations to investigate how the interaction of electrons with ph…
Predicted formation of superconducting platinum-hydride crystals under pressure in the presence of molecular hydrogen
Duck Young Kim, Ralph H. Scheicher, Chris J. Pickard +2
Noble metals adopt close-packed structures at ambient pressure and rarely undergo structural transformation at high pressures. Platinum (Pt), in particular, is normally considered…