News

[Prof. C. S. Chang] Atomic lift-off of epitaxial membranes for cooling-free infrared detection (publ... Apr 28, 2025 l Hit 232

Atomic lift-off of epitaxial membranes for cooling-free infrared detection Recent breakthroughs in ultrathin, single-crystalline, freestanding complex oxide systems have sparked industry interest in their potential for next-generation commercial devices. However, the mass production of these ultrathin complex oxide mem...

[Dongjoon Song and Changyoung Kim] Interplay between hole superconductivityand quantum critical anti... Mar 24, 2025 l Hit 235

Interplay between hole superconductivityand quantum critical antiferromagneticfluctuations in electron-doped cuprates Antiferromagnetic spin fluctuations are the most promising candidate as the pairing glue of high critical temperature (Tc) superconductivity in cuprates. However, many-body states and intertwined orders...

[Prof. Seung-Sup B. Lee] Dynamical Scaling and Planckian Dissipation Due to Heavy-Fermion Quantum Cr... Mar 11, 2025 l Hit 230

Dynamical Scaling and Planckian Dissipation Due to Heavy-Fermion Quantum Criticality Andreas Gleis, Seung-Sup B. Lee, Gabriel Kotliar, and Jan von Delft Phys. Rev. Lett. 134, 106501 (2025) (Publication date: 10 March, 2025) Strange metals, an enigmatic state of matter found in many strongly correlated materials, s...

[Jihoon Keum, Kai-Xuan Zhang, Giung Park,  Je-Geun Park] Novel magnetic-field-free switching behavio... Jan 23, 2025 l Hit 225

Novel magnetic-field-free switching behavior in vdW-magnet/oxide heterostructure Magnetization switching by charge current without a magnetic field is essential for device applications and information technology. It generally requires a current-induced out-of-plane spin polarization beyond the capability of conventiona...

[Hong-Gyu Park] Strained two-dimensional tungsten diselenide for mechanically tunable exciton transp... Jan 6, 2025 l Hit 234

Tightly bound electron-hole pairs (excitons) hosted in atomically-thin semiconductors have emerged as prospective elements in optoelectronic devices for ultrafast and secured information transfer. The controlled exciton transport in such excitonic devices requires manipulating potential energy gradient of charge-neutra...

[Dirk Wulferding and Changyoung Kim] Magnetic field control over the axial character of Higgs modes ... Jan 6, 2025 l Hit 225

Magnetic field control over the axial character of Higgs modes in charge-density wave compounds Understanding how symmetry-breaking processes generate order out of disorder is among the most fundamental problems of nature. The scalar Higgs mode – a massive (quasi-) particle – is a key ingredient in the...

[Guedong Park, Hyukjoon Kwon(KIAS), and Hyunseok Jeong] Extending Classically Simulatable Bounds of ... Dec 9, 2024 l Hit 217

Extending Classically Simulatable Bounds of Clifford Circuits with Nonstabilizer States via Framed Wigner Functions The Wigner function formalism has played a pivotal role in examining the nonclassical aspects of quantum states and their classical simulatability. Nevertheless, its application in qubit systems faces lim...

[Sunje Kim and Bohm-Jung Yang] Measurement of the quantum geometric tensor in solids (published in N... Nov 26, 2024 l Hit 217

Measurement of the quantum geometric tensor in solids Understanding the geometric properties of quantum states and their implications in fundamental physical phenomena is a fundamental aspect of contemporary physics. The quantum geometric tensor is a central physical object in this regard, encoding complete information...

[Prof. Seung-Sup B. Lee] Emergent Properties of the Periodic Anderson Model: A High-Resolution, Real... Nov 11, 2024 l Hit 220

Emergent Properties of the Periodic Anderson Model: A High-Resolution, Real-Frequency Study of Heavy-Fermion Quantum Criticality Andreas Gleis, Seung-Sup B. Lee, Gabriel Kotliar, and Jan von Delft Phys. Rev. X 14, 041036 (2024) (Publication date: 7 November 2024) For more than 20 years, quantum criticality in heav...

Rasoul Ghadimi, Chiranjit Mondal, Bohm-Jung Yang] Quantum valley Hall effect without Berry curvatur ... Nov 8, 2024 l Hit 220

Quantum valley Hall effect without Berry curvature The quantum valley Hall effect (QVHE) is characterized by the valley Chern number (VCN) in a way that one-dimensional (1D) chiral metallic states are guaranteed to appear at the domain walls (DW) between two domains with opposite VCN for a given valley. Although in the...