TY - JOUR
T1 - Flow of a single magnetic vortex in a submicron-size superconducting al disk controlled by radio-frequency currents
AU - Harada, Atsushi
AU - Enomoto, Kengo
AU - Takahide, Yamaguchi
AU - Kimata, Motoi
AU - Yakabe, Taro
AU - Kodama, Kota
AU - Satsukawa, Hidetaka
AU - Kurita, Nobuyuki
AU - Tsuchiya, Satoshi
AU - Terashima, Taichi
AU - Uji, Shinya
PY - 2011/8/9
Y1 - 2011/8/9
N2 - We report the first observation of a single-vortex flow in a mesoscopic superconductor. A flow of a single vortex is successfully controlled by an rf current superimposed on a dc current, evidence of which is provided by voltage steps in current-voltage (I-V) characteristics. Irrespective of the number of vortices confined to the disk, we unambiguously observe that when a single vortex inside the disk is driven out of the disk, another vortex enters the disk similarly to two balls colliding in billiards: only one vortex passes through the Al disk at the same time in mesoscopic systems.
AB - We report the first observation of a single-vortex flow in a mesoscopic superconductor. A flow of a single vortex is successfully controlled by an rf current superimposed on a dc current, evidence of which is provided by voltage steps in current-voltage (I-V) characteristics. Irrespective of the number of vortices confined to the disk, we unambiguously observe that when a single vortex inside the disk is driven out of the disk, another vortex enters the disk similarly to two balls colliding in billiards: only one vortex passes through the Al disk at the same time in mesoscopic systems.
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U2 - 10.1103/PhysRevLett.107.077002
DO - 10.1103/PhysRevLett.107.077002
M3 - Article
AN - SCOPUS:80051511527
SN - 0031-9007
VL - 107
JO - Physical Review Letters
JF - Physical Review Letters
IS - 7
M1 - 077002
ER -