Confinement of Superconducting Vortices in Magnetic Force Microscopy
2016.04.11 14:50
날짜 | 2016-04-12 16:00 |
---|---|
일시 | Apr. 12 (Tue.), 4 PM |
장소 | E6-2. 1st fl. #1323 |
연사 | Dr. Jeehoon Kim, POSTECH |
Confinement of
Apr. 12 (Tue.), 4 PM, E6-2. 1st fl. #1323
Dr. Jeehoon Kim, POSTECH
Magnetic force microscope (MFM) laboratory at CALDES in IBS has constructed a 3He MFM, operating within a vector magnet with the base temperature of 300 mK and magnetic field range of 2-2-9 T in the x-y-z direction.
We demonstrated magnetic imaging capabilities at very low temperature by imaging simultaneously superconducting vortices and magnetic stripes at T= 500 mK in the ferromagnetic superconductor ErNi2B2C which has a ferromagnetic transition below Twfm=2.3 K. The direct visualization of coexistence between superconductivity and magnetism was carried out in ErNi2B2C. The vector field performance of the apparatus was also demonstrated by the creation and imaging of Abrikosov vortices within a superconducting Nb film using a vector field. For example, an in-plane field allows creating a vortex-antivortex pair which is confined through a single flux tube, and thus showing a linear potential in distance. We show an interesting contrast of interaction nature between confined and isolated vortices.
Contact: Eun Gook Moon, Physics Dept., (egmoon@kaist.ac.kr)
댓글 0
번호 | 날짜 | 장소 | 제목 |
---|---|---|---|
145 | 2015-12-09 11:00 | E4(KI Building), Connect room (2nd fl.) | Functional Imaging & Monitoring of Brain & Breast with Diffuse Light |
144 | 2015-03-13 14:00 | Connect Room, KI Bldg. | The 15th Innovative Workshop on Soft/Bio Materials |
143 | 2022-09-21 16:00 | College of Natural Science E6-2, Rm. 1323 | Materials and Device Nanofabrication of Optical Metasurfaces |
142 | 2023-09-14 16:00 | CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus | [CAPP seminar] Dark matter searches in Water Cherenkov Detectors |
141 | 2023-05-15 16:00 | CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus | Role of dark Higgs boson in DM physics and cosmology |
140 | 2023-09-18 16:00 | CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus | [CAPP Seminar] Searching for axions in quantum vacuum birefringence |
139 | 2023-10-11 16:00 | CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus | [CAPP seminar] Particle Physics with Neutrinos |
138 | 2023-09-21 16:00 | CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus | [CAPP seminar] Axion Magnetic Resonance |
137 | 2023-06-14 16:00 | CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus | [CAPP seminar] EMC at CERN |
136 | 2024-01-25 16:00 | CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus | [CAPP seminars] Detecting Gravitational Waves by Elecromagnetic Cavity |
135 | 2023-03-27 15:00 | CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus | A coherent mechanical oscillator pumped by a suspended quantum dot |
134 | 2023-03-30 16:00 | CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus | Detecting axions with chiral magnetic effects |
133 | 2023-07-26 10:00 | CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus | [CAPP Seminar] Am Expansive Search for Dark Matter with ADMX and DM Radio |
132 | 2023-06-22 16:00 | CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus | [CAPP Seminar] The muon g-2 puzzle |
131 | 2023-06-15 16:00 | CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus | [CAPP Seminar] Cryogenic electronics for ion traps |
130 | 2023-12-14 16:00 | CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus | Superconducting qubits for large-scale quantum computers |
129 | 2023-07-20 16:00 | CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus | [CAPP Seminar] Cosmoparticle Physics of Dark Universe |
128 | 2022-07-21 16:00 | CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus | Quintessential axions |
127 | 2020-10-15 16:00 | CAPP Seminar Room #C303, Creation Hall (3F), KAIST Munji Campus | Graphene-based Josephson junction microwave bolometer |
126 | 2016-06-01 10:30 | BK21 Conference Room (#1318, E6-2) | Welcome to Nature Photonics |