Kimoon Higashihira Han
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About

Hi, I'm Kimoon.

I am a Ph.D. student in experimental condensed matter physics at KAIST. My current research focuses on charge density waves in transition metal dichalcogenides and related materials, as well as the development of ARPES instrumentation and analysis methods.

More broadly, I am interested in both the physics and the practice of experiment. I have experience with ultra-high vacuum and cryogenic systems, synchrotron- and lab-based ARPES experiments, and the development of data acquisition and analysis tools. I also develop erlabpy, a library for analyzing and visualizing ARPES data.

Lab
Electronic Structure Research Lab
PI
Prof. Yeongkwan Kim
Email
khan@kaist.ac.kr
CV ORCID GitHub LinkedIn Google Scholar

Skills & experience

Experiment

ARPES

  • Synchrotron ARPES beamtime experience at Advanced Light Source and Stanford Synchrotron Radiation Lightsource
  • Lab-based ARPES experience with multiple light sources, including gas discharge lamps and UV lasers, and time-of-flight analyzers
  • Spin-resolved ARPES with a VLEED spin detector
  • In-situ alkali metal deposition and strain application
Experiment

Crystal growth & characterization

  • Transition metal dichalcogenide single crystals with chemical vapor transport
  • Various sample characterization techniques
  • Samples with varying Cu intercalation levels
Technical

Instrumentation

  • Ultra-high vacuum and cryogenic system design and maintenance
  • Designed and built an ARPES system capable of reaching 1.6 K
Technical

Design & prototyping

  • 3D CAD design with Autodesk Fusion
  • 3-axis CNC machining
Technical

Programming

Education

Integrated Master's and Ph.D. Program in Physics

Korea Advanced Institute of Science and Technology (KAIST)

Mar 2023-Present / Daejeon, Republic of Korea

B.S. in Physics

Korea Advanced Institute of Science and Technology (KAIST)

Mar 2019-Feb 2023 / Daejeon, Republic of Korea

Selected posters

Poster Feb 12, 2025

Angle-resolved photoemission spectroscopy below 2 K

Awarded conference poster on the development of a custom-built ARPES system that allows for measurements at temperatures as low as 1.6 K.

Award

Excellent Poster Award

Winter Conference of the Korean Society of Superconductivity and Cryogenics

View exhibit

Awards & honors

Excellent Award

KAIST Undergraduate Research Participation (URP) Program

Aug 2022

  • Study on chiral charge density waves in Cu-intercalated 1T-TiSe2

Leadership & service

Mentoring & Lab Service

KAIST

2023-present

  • Trained new lab members and undergraduate researchers in ARPES data acquisition, analysis workflows, sample preparation, and routine instrument operation.
  • Created and maintained shared onboarding and troubleshooting documentation for lab instrumentation and software.

Vice President, Department of Physics Undergraduate Student Council

KAIST

2021

Student Representative, Department of Physics

KAIST

2020-2022