News

[Dr. Eunho Song, Ms. Sun Han, Dr. Heesoo Uhm, Prof. Changwon Kang (KAIST), Prof. Sungchul Hohng] Sin... Jul 24, 2024 l Hit 1144

Single-mode termination of phage transcriptions, disclosing bacterial adaptation for facilitated reinitiations Prof. Sungchul Hohng's lab and other groups have recently found that the transcription termination mode is dual with decomposing and recycling terminations compatible at a single terminator in bacteria ...

[Dr. Jae-Gyun Baak and Prof. Uwe R. Fischer] Parameter Estimation for Interacting Many-Body Systems ... Jul 11, 2024 l Hit 786

Parameter Estimation for Interacting Many-Body Systems Redefined It is shown by Prof. Uwe R. Fischer and his recent PhD graduate Jae-Gyun Baak, whose culminating achievement during his graduate studies at Seoul National University is this publication in Physical Review Letters, that for a correct interpretation of meas...

[Suyoung Lee and Prof. Changyoung Kim] Broken Kramers Degeneracy in Altermagnetic MnTe (published in... Jan 22, 2024 l Hit 2490

“Broken Kramers Degeneracy in Altermagnetic MnTe” Altermagnetism is a newly identified fundamental class of magnetism with vanishing net magnetization and time-reversal symmetry broken electronic structure. Probing the unusual electronic structure with nonrelativistic spin splitting would be a...

[Ha-Leem Kim,  Heejun Yang, and Prof.  Je-Geun Park] Thermal Hall effects due to topological spin flu... Jan 4, 2024 l Hit 1461

The thermal Hall effect in magnetic insulators has been considered a powerful method for examining the topological nature of charge-neutral quasiparticles such as magnons. Yet, unlike the kagome system, the triangular lattice has received less attention for studying the thermal Hall effect because the scalar spin chira...

[Dr. Kai-Xuan Zhang / Prof. Je-Geun Park]  Broken Inversion Symmetry in Van Der Waals Topological Fe... Jan 2, 2024 l Hit 1474

Inversion symmetry breaking is critical for many quantum effects and fundamental for spin-orbit torque, which is crucial for next-generation spintronics. Recently, a novel type of gigantic intrinsic spin-orbit torque has been established in the topological van-der-Waals (vdW) magnet iron germanium telluride. However, i...

[Jiho Jang and Prof. Hongki Min] Optical Transitions of a Single Nodal Ring in SrAs3: Radially and A... Dec 7, 2023 l Hit 449

SrAs3 is a unique nodal-line semimetal that contains only a single nodal ring in the Brillouin zone, uninterrupted by any trivial bands near the Fermi energy. We performed axis-resolved optical reflection measurements on SrAs3 and observed that the optical conductivity exhibits flat absorption up to 129 meV in both the...

[Seong-Hyub Lee, Myeonghoe Kim, Hyun-Seok Whang, & Prof. Sug-Bong Choe] Position error-free control ... Dec 1, 2023 l Hit 409

Magnetic domain-wall devices such as racetrack memory and domain-wall shift registers facilitate massive data storage as hard disk drives with low power portability as flash memory devices. The key issue to be addressed is how perfectly the domain-wall motion can be controlled without deformation, as it can replace the...

[Prof. Hong-Gyu Park's Group] Vortex nanolaser based on a photonic disclination cavity Nov 29, 2023 l Hit 335

Optical vector vortex beams provide additional degrees of freedom for spatially distinguishable channels in data transmission. Although several coherent light sources carrying a topological singularity have been reported, it remains challenging to develop a general strategy for designing ultra-small, high-quality photo...

[Prof. Hong-Gyu Park's Group] The ultra-thin, minimally invasive surface electrode array NeuroWeb fo... Nov 14, 2023 l Hit 301

Electrophysiological recording technologies can provide valuable insights into the functioning of the central and peripheral nervous systems. Surface electrode arrays made of soft materials or implantable multi-electrode arrays with high electrode density have been widely utilized as neural probes. However, neither of ...

[Junghyun Kim and Prof. Je-Geun Park] Rapid suppression of quantum many-body magnetic exciton in dop... Nov 7, 2023 l Hit 309

The unique discovery of magnetic exciton in van der Waals antiferromagnet NiPS3 arises between two quantum many-body states of a Zhang-Rice singlet excited state and a Zhang-Rice triplet ground state. Simultaneously, the spectral width of photoluminescence originating from this exciton is exceedingly narrow as 0.4...