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10 papers · 1 filter
Competition between structural distortion and magnetic moment formation in fullerene C
Myung Joon Han, Gunn Kim, Jae Il Lee +1
We investigated the effect of on-site Coulomb interactions on the structural and magnetic ground state of the fullerene C based on density-functional-theory calculations wit…
Theory of magnetic field-induced metaelectric critical end point in BiMnO
Gun Sang Jeon, Jin-Hong Park, Kee Hoon Kim +1
A recent experiment on the multiferroic BiMnO compound under a strong applied magnetic field revealed a rich phase diagram driven by the coupling of magnetic and charge (di…
Breakdown of half-metallic ferromagnetism in zinc-blende II-V compounds
Yun Li, Jaejun Yu
We investigated the electronic and magnetic properties of a series of zinc-blend II-V compounds by carrying out density-functional-theory calculations including spin-orbit coupling…
Universal criterion and phase diagram for switching a magnetic vortex core in soft magnetic nanodots
Ki-Suk Lee, Sang-Koog Kim, Young-Sang Yu +4
The universal criterion for ultrafast vortex-core switching between the up- and down-core bistates in soft magnetic nanodots was investigated by micromagnetic simulations along wit…
Spin-orbit interaction effect in the electronic structure of \BiTe \ observed by angle-resolved photoemission spectroscopy
Han-Jin Noh, H. Koh, S. -J. Oh +8
The electronic structure of -type doped \BiTe is studied by angle resolved photoemission spectroscopy (ARPES) to experimentally confirm the mechanism responsible for the high th…
Two Circular-Rotational Eigenmodes in Vortex Gyrotropic Motions in Soft Magnetic Nanodots
Ki-Suk Lee, Sang-Koog Kim
We found, by micromagnetic numerical and analytical calculations, that the clockwise (CW) and counterclockwise (CCW) circular-rotational motions of a magnetic vortex core in a soft…