Welcome!

Welcome to the B. J. Kim's group in the Department of Physics at the POSTECH!

Our group specializes in studying the solid state structure via spectroscopical means. Under the supervision of Prof. Bumjoon Kim, researchers and students perform active studies on strongly correlated materials.

Our current interest lies in discovering the nature of ordering phenomena in transition metal oxides, one of the most important strongly correlated electronic systems. Amongst the oxides with transition phenomena our main concern are iridates.

The main tools used in the research here are: X-ray spectroscopy (RXD, RIXS), Raman spectroscopy, neutron spectroscopy, ARPES and crystal synthesis. You can find more information about the individual tools and how they are used here.

News

• [2025-07-00] New group website!

• [2025-01-23] Our group published a paper on the liquid-like spin dynamics in Nature Communications.

• [2024-10-14] Our group published a paper on the chiral charge density wave in Nature Physics.

• [2023-12-14]  Our group published a paper on the quantum spin nematic phase in Nature.

• [2023-04-27] Our group published a beamline paper for RIXS endstation at 1C, PAL in Journal of Synchrotron Radiation.

• [2022-12-16] Hoon and Prof. Kim published their theoretical work on Ca2RuO4 RIXS spectra in Physical Review B.

• [2025/01/23] Our group published a paper on the liquid-like spin dynamics in Nature Communications.