42 citations · 112 across the 14 of their papers we have counts for
14 papers
Emergence of moiré magnetic chaos in twisted bilayer CrI3
Gyuyoung Park, OukJae Lee, Kyoung-Min Kim
The study of magnetic chaos has traditionally focused on macroscopic variables under external driving. Here we demonstrate a new type of magnetic chaos, termed moiré magnetic chaos…
Non-Perturbative Renormalization Group for Ising-Nematic Criticality: A Closed-Form Nonlocal Ansatz
Hyeon Jung Kim, Kyoung-Min Kim, Ki-Seok Kim
The two-dimensional metallic quantum critical problem is a long-standing puzzle that is widely believed to hold the key to resolving ubiquitous non-Fermi liquid behavior in strongl…
Disordered non-Fermi liquid fixed point for two-dimensional metals at Ising-nematic quantum critical points
Kyoung-Min Kim, Ki-Seok Kim
Understanding the influence of quenched random potential is crucial for comprehending the exotic electronic transport of non-Fermi liquid metals near metallic quantum critical poin…
Deep learning methods for Hamiltonian parameter estimation and magnetic domain image generation in twisted van der Waals magnets
Woo Seok Lee, Taegeun Song, Kyoung-Min Kim
The application of twist engineering in van der Waals magnets has opened new frontiers in the field of two-dimensional magnetism, yielding distinctive magnetic domain structures. D…
Emergence of stable meron quartets in twisted magnets
Kyoung-Min Kim, Gyungchoon Go, Moon Jip Park +1
The investigation of twist engineering in easy-axis magnetic systems has revealed the remarkable potential for generating topological spin textures, such as magnetic skyrmions. Her…
Controllable magnetic domains in twisted trilayer magnets
Kyoung-Min Kim, Moon Jip Park
The use of moiré patterns to manipulate two-dimensional materials has facilitated new possibilities for controlling material properties. The moiré patterns in the two-dimensional m…
Anderson transition of in-gap quasiparticles in a quasi-two-dimensional disordered superconductor
Hae-Ryong Park, Kyung-Yong Park, Kyoung-Min Kim +4
The Anderson transition of Bogoliubov-de Gennes (BdG) quasiparticles in superconducting state has been studied theoretically for last three decades. However, its experimental proof…
Theory of Moire Magnets and Topological Magnons: Applications to Twisted Bilayer CrI3
Kyoung-Min Kim, Do Hoon Kiem, Grigory Bednik +2
We develop a comprehensive theory of twisted bilayer magnetism. Starting from the first-principles calculations of two-dimensional honeycomb magnet CrI3, we construct the generic s…
Disorder-driven Phase Transitions of Second-order Non-Hermitian Skin Effects
Kyoung-Min Kim, Moon Jip Park
Non-Hermitian skin effect exhibits the collapse of the extended bulk modes into the extensive number of localized boundary states in open boundary conditions. Here we demonstrate t…
Existence of a weak-disorder non-Fermi liquid fixed point in the hydrodynamic regime of two-dimensional nematic quantum criticality
Kyoung-Min Kim, Ki-Seok Kim
Role of quenched randomness in metallic quantum criticality is one of the long standing problems in condensed matter physics. An aspect of the fundamental difficulties lies in the…
Emergence of Weyl metals driven by doped magnetic impurities in spin-orbit coupled semiconductors
Kyoung-Min Kim, Jinsu Kim, Soo-Whan Kim +2
Constructing an effective field theory in terms of doped magnetic impurities (described by an O(3) vector model with a random mass term), itinerant electrons of spin-orbit coupled…
Two-parameter scaling theory of the longitudinal magnetoconductivity in a Weyl metal phase: Chiral anomaly, weak disorder, and finite temperature
Kyoung-Min Kim, Dongwoo Shin, M. Sasaki +3
It is at the heart of modern condensed matter physics to investigate the role of a topological structure in anomalous transport phenomena. In particular, chiral anomaly turns out t…
Interplay between disorder and inversion symmetry: Extreme enhancement of the mobility near the Weyl point in BiTeI
M. Sasaki, Kyoung-Min Kim, A. Ohnishi +5
We show experimental and theoretical evidence that BiTeI hosts a novel disordered metallic state named diffusive helical Fermi liquid (DHFL), characterized by a pair of concentric…
Dilute magnetic topological semiconductors: What's new beyond the physics of dilute magnetic semiconductors?
Kyoung-Min Kim, Yong-Soo Jho, Ki-Seok Kim
Role of localized magnetic moments in metal-insulator transitions lies at the heart of modern condensed matter physics, for example, the mechanism of high T superconductivity…