Kanghyun Chu

About

I am a scientist in quantum crystallography and nanotechnology.
My research encompasses experimental measurements and theoretical modeling as complementary approaches to better understand the true nature of reality at the nanoscopic scale.
I am skilled at using scanning probe microscopes and X-ray diffraction apparatuses, as well as analysing the resulting data.
Exploring macroscopic phenomena arising from spatial symmetries or symmetry breaking has been a key interest of my research.

Employment

• Deutsches Elektronen-Synchrotron DESY Research Employee
  2026 - Present
• Universität Bern Architekt III
  2023 - 2025
• EPFL postdoc
  2018 - 2022
• KAIST Postdoc
  2017 - 2018

Education

• KAIST Ph.D
  2009 - 2017
• KAIST MS
  2007 - 2009
• KAIST B.S.
  2003 - 2007

Projects & Funding

• Phase field modelling and PFM study of defects in ferroic materials Swiss National Science Foundation
  2020 - 2021

Publications (32)

• Periodic Hirshfeld Atom Refinement
  The Journal of Physical Chemistry Letters 2026 DOI: 10.1021/acs.jpclett.5c03918
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• Pyroelectric Polyelectrolyte Brushes
  Advanced Materials 2024 DOI: 10.1002/adma.202307038
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• Controlled Electronic and Magnetic Landscape in Self-Assembled Complex Oxide Heterostructures
  Advanced Materials 2023 DOI: 10.1002/adma.202300200
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• Controlled Electronic and Magnetic Landscape in Self-Assembled Complex Oxide Heterostructures
  Research Square 2022 DOI: 10.21203/rs.3.rs-1686297/v1
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• Nano-characterizations of low-dimensional nanostructural materials
  Journal of the Korean Physical Society 2022 DOI: 10.1007/s40042-022-00478-y
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• Flexopiezoelectricity at ferroelastic domain walls in WO3 films
  Nature Communications 2020 DOI: 10.1038/s41467-020-18644-w
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• Macroscopic polarization in the nominally ergodic relaxor state of lead magnesium niobate
  Applied Physics Letters 2020 DOI: 10.1063/5.0018243
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• Macroscopic polarization in the nominally ergodic relaxor state of lead magnesium niobate
  Arxiv 2020 DOI: 10.48550/arxiv.2011.02713
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• Ultra-high piezoresponse in tantalum doped potassium sodium niobate single crystal
  Applied Physics Letters 2020 DOI: 10.1063/5.0002178
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• Artificial creation and separation of a single vortex–antivortex pair in a ferroelectric flatland
  Npj Quantum Materials 2019 DOI: 10.1038/s41535-019-0167-y
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• Configurable topological textures in strain graded ferroelectric nanoplates
  Nature Communications 2018 DOI: 10.1038/s41467-017-02813-5
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• Enhanced Switchable Ferroelectric Photovoltaic Effects in Hexagonal Ferrite Thin Films via Strain Engineering
  ACS Applied Materials and Interfaces 2018 DOI: 10.1021/acsami.7b16700
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• High-resolution angle-resolved lateral piezoresponse force microscopy: Visualization of in-plane piezoresponse vectors
  Review of Scientific Instruments 2018 DOI: 10.1063/1.5052662
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• Multiple relaxations of the cluster surface diffusion in a homoepitaxial SrTiO3layer
  Applied Physics Letters 2018 DOI: 10.1063/1.5020943
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• Disordered ferroelectricity in the PbTiO3/SrTiO3 superlattice thin film
  APL Materials 2017 DOI: 10.1063/1.4986064
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• Electric-field-induced spin disorder-to-order transition near a multiferroic triple phase point
  Byung‐Kweon Jang, Jin Hong Lee, Kanghyun Chu +17 more
  Nature Physics 2017 DOI: 10.1038/nphys3902
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• Nonlinear flexoelectricity in non-centrosymmetric crystals
  Arxiv 2017 DOI: 10.48550/arxiv.1702.02740
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• Nonlinear flexoelectricity in noncentrosymmetric crystals
  Physical Review B 2017 DOI: 10.1103/PhysRevB.96.104102
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• Out-of-plane three-stable-state ferroelectric switching: Finding the missing middle states
  Physical Review B 2016 DOI: 10.1103/PhysRevB.93.115142
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• Enhancement of the anisotropic photocurrent in ferroelectric oxides by strain gradients
  Nature Nanotechnology 2015
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