119 citations · 265 across the 4 of their papers we have counts for
7 papers
Tunable energy transfer between dipolar-coupled magnetic disks by stimulated vortex gyration
Hyunsung Jung, Ki-Suk Lee, Dae-Eun Jeong +9
A wide variety of coupled harmonic oscillators exist in nature1. Coupling between different oscillators allows for the possibility of mutual energy transfer between them2-4 and the…
Edge-Soliton-Mediated Vortex-Core Reversal Dynamics
Ki-Suk Lee, Myoung-Woo Yoo, Youn-Seok Choi +1
We report a new reversal mechanism of magnetic vortex cores in nanodot elements driven by out-of-plane currents, occurring through two coupled edge-solitons via dynamic transformat…
Polarization-selective vortex-core switching by orthogonal Gaussian-pulse currents
Young-Sang Yu, Ki-Suk Lee, Hyunsung Jung +6
We experimentally demonstrate low-power-consumption vortex-core switching in magnetic nanodisks using tailored rotating magnetic fields that are produced with orthogonal and unipol…
Quantitative understanding of magnetic vortex oscillations driven by spin-polarized out-of-plane dc current: Analytical and micromagnetic numerical study
Youn-Seok Choi, Ki-Suk Lee, Sang-Koog Kim
We studied magnetic vortex oscillations associated with vortex gyrotropic motion driven by spin-polarized out-of-plane dc current by analytical and micromagnetic numerical calculat…
Criterion for transformation of transverse domain wall to vortex or antivortex wall in soft magnetic thin-film nanostripes
Youn-Seok Choi, Sang-Koog Kim, Jun-Young Lee +3
We report on the criterion for the dynamic transformation of the internal structure of moving domain walls (DWs) in soft magnetic thin-film nanostripes above the Walker threshold f…
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…