29 citations · 86 across the 27 of their papers we have counts for
9 papers · 1 filter
Performance Evaluation of Deep,Near Ultraviolet Laser Assisted Atom Probes for a range of Material system
Chang-Gi Lee, Byeong-Gyu Chae, I-Jun Ro +6
Atom probe tomography (APT) enables near atomic scale three dimensional elemental mapping through the controlled field evaporation of surface atoms triggered by the combined applic…
Magnetocaloric effect of Fe47.5Ni37.5Mn15 bulk and nanoparticles: A cost-efficient alloy for room temperature magnetic refrigeration
Chang-Gi Lee, Varatharaja Nallathambi, TaeHyeok Kang +6
The development of magnetic refrigerators that operate at room temperature without the use of environmentally harmful substances represents a significant advancement in eco-friendl…
An atomic-scale view at Fe4N as hydrogen barrier material
Aleksander Albrecht, Sang Yoon Song, Chang-Gi Lee +9
Hydrogen, while a promising sustainable energy carrier, presents challenges such as the embrittlement of materials due to its ability to penetrate and weaken their crystal structur…
Understanding High Coercivity in ThMn12-Type Sm-Zr-Fe-Co-Ti Permanent Magnet Powders through Nanoscale Analysis
Nikita Polin, Alexander M. Gabay, Chaoya Han +6
ThMn12-type (Sm,Zr)1(Fe,Co,Ti)12 compounds show great potential for permanent magnets. Magnetically hard anisotropic powders prepared via reduction-diffusion exhibit a significant…
Grain boundaries control lithiation of solid solution substrates in lithium metal batteries
Leonardo Shoji Aota, Chanwon Jung, Siyuan Zhang +9
The development of sustainable transportation and communication systems requires an increase in both energy density and capacity retention of Li-batteries. Using substrates forming…
Mapping the path to Cryogenic Atom Probe Tomography Analysis of biomolecules
Eric V. Woods, Tim M. Schwarz, Mahander P. Singh +7
The understanding of protein structure, folding, and interaction with other proteins remains one of the grand challenges of modern biology. Tremendous progress has been made thanks…
Impurities, or dopants, that is the question
Baptiste Gault, Leonardo Shoji Aota, Mathias Krämer +1
The numerous stories around LK-99 as a possible room-temperature superconductor over the summer of 2023 epitomise that materials are more than a bulk crystallographic structure or…
Analysis of water ice in nanoporous copper needles using cryo atom probe tomography
Levi Tegg, Ingrid E. McCarroll, Se-Ho Kim +5
The application of atom probe tomography (APT) to frozen liquids is limited by difficulties in specimen preparation. Here, we report on the use of nanoporous Cu needles as a physic…
Understanding atom probe's analytical performance for iron oxides using correlation histograms and ab initio calculations
Se-Ho Kim, Shalini Bhatt, Daniel K. Schreiber +4
Field evaporation from ionic or covalently bonded materials often leads to the emission of molecular ions. The metastability of these molecular ions, particularly under the influen…