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Construction of a 3He magnetic force microscope with a vector magnet

Title
Construction of a 3He magnetic force microscope with a vector magnet
Authors
Yang, JYang, IKim, YWShin, DJeong, JWulferding, DYeom, HWKIM, JEE HOON
POSTECH Authors
Yeom, HWKIM, JEE HOON
Date Issued
Feb-2016
Publisher
AMER INST PHYSICS
Abstract
We constructed a He-3 magnetic force microscope operating at the base temperature of 300 mK under a vector magnetic field of 2-2-9 T in the x-y-z direction. Fiber optic interferometry as a detection scheme is employed in which two home-built fiber walkers are used for the alignment between the cantilever and the optical fiber. The noise level of the laser interferometer is close to its thermodynamic limit. The capabilities of the sub-Kelvin and vector field are demonstrated by imaging the coexistence of magnetism and superconductivity in a ferromagnetic superconductor (ErNi2B2C) at T = 500 mK and by probing a dipole shape of a single Abrikosov vortex with an in-plane tip magnetization. (C) 2016 AIP Publishing LLC.
URI
http://oasis.postech.ac.kr/handle/2014.oak/29909
DOI
10.1063/1.4941959
ISSN
0034-6748
Article Type
Article
Citation
REVIEW OF SCIENTIFIC INSTRUMENT, vol. 87, no. 2, page. 23704, 2016-02
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김지훈KIM, JEE HOON
Convergence Science and Technology
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