63 citations · 101 across the 7 of their papers we have counts for
7 papers
Quantum Spin Hall-like Phononic States in van der Waals Bilayers with Antiferromagnetic Ordering
W. H. Han, K. J. Chang
Here, we propose quantum spin Hall-like phononic states in van der Waals bilayer systems with antiferromagnetic ordering. Antiferromagnetic ordering in bilayer systems with small i…
Dynamics of fullerene coalescence
Yong-Hyun Kim, In-Ho Lee, K. J. Chang +1
Fullerene coalescence experimentally found in fullerene-embedded single-wall nanotubes under electron-beam irradiation or heat treatment is simulated by minimizing the classical ac…
Magnetic Quantum Dot: A Magnetic Transmission Barrier and Resonator
H. -S. Sim, G. Ihm, N. Kim +1
We study the ballistic edge-channel transport in quantum wires with a magnetic quantum dot, which is formed by two different magnetic fields B^* and B_0 inside and outside the dot,…
Pairing in the quantum Hall system
Kang-Hun Ahn, K. J. Chang
We find an analogy between the single skyrmion state in the quantum Hall system and the BCS superconducting state and address that the quantum mechanical origin of the skyrmion is…
A microscopic theory of skyrmion excitations in the fractional quantum Hall system
Kang-Hun Ahn, K. J. Chang
We present a microscopic theory of skyrmion and antiskyrmion excitations in fractional quantum Hall systems, and calculate in an analytical fashion their excitation energies. From…
Symmetry-breaking skyrmion states in fractional quantum Hall systems
Kang-Hun Ahn, K. J. Chang
We calculate in an analyical fashion the energies and net spins of skyrmions in fractional quantum Hall systems, based on the suggestion that skyrmion states are spontaneously $L_Z…