News

[Sunje Kim, Yuting Qian & Bohm-Jung Yang] Direct measurement of the quantum metric tensor in solids ... Jun 9, 2025 l Hit 377

Direct measurement of the quantum metric tensor in solids The quantum metric tensor is a central geometric quantity in modern physics that is defined as the distance between nearby quantum states. Despite numerous studies highlighting its relevance to fundamental physical phenomena in solids, measuring the complete qua...

[Young-Woo Pyo, Heegeun Kim and Hong-Gyu Park*] Graphene-Integrated Ultrathin Neural Probe for Multi... May 21, 2025 l Hit 300

Graphene-Integrated Ultrathin Neural Probe for Multiregional Cortical Recordings Electrophysiological measurement techniques are essential for understanding the functions of the central and peripheral nervous systems. Specifically, noninvasive neural probes, such as surface electrode arrays, provide stable electrophysi...

[Kai-Xuan Zhang, Hyuncheol Kim and Je-Geun Park] Current control of helical spin texture in 2D van d... Apr 30, 2025 l Hit 303

Current control of helical spin texture in 2D van der Waals antiferromagnet Electrical control of quantum magnetic states is essential in spintronic science. Initial studies on the ferromagnetic state control were extended to collinear antiferromagnets and, more recently, noncollinear antiferromagnets. However, electri...

[Prof. C. S. Chang] Atomic lift-off of epitaxial membranes for cooling-free infrared detection (publ... Apr 28, 2025 l Hit 316

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 309

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 346

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 311

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 322

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 328

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 341

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...