--- _id: '10746' abstract: - lang: eng text: Vortex states in superconducting (SC) structures, their dynamics and ways to manipulate them are topics of great interest. We report a new method of magnetic force microscopy (MFM) that allows the study of vortex states in mesoscopic SC samples. For the case of a SC ring, which is biased to a half-integer flux quantum, the flux modulation through the ring caused by the motion of the magnetic tip drives the ring between two consecutive fluxoid states. The corresponding current switching in the ring produces strong position-dependent forces on the cantilever. In the regime where the frequency of the thermally activated jumps between fluxoid states is close to the frequency of the cantilever, large changes in the cantilever frequency and dissipation are observed. This effect may be understood as a stochastic resonance (SR) process. These changes in the cantilever’s mechanical properties are used to “image” the barrier energies between fluxoid states. Additionally, SR imaging of the barrier energies are used to study the effect of the locally applied magnetic field from the MFM tip on the barrier heights. We report the results of measurements for Al rings. Further, the same imaging technique can be applied to more sophisticated SC structures such as arrays of Josephson junctions. alternative_title: - Bulletin of the American Physical Society article_number: E25.00007 article_processing_charge: No author: - first_name: Hryhoriy full_name: Polshyn, Hryhoriy id: edfc7cb1-526e-11ec-b05a-e6ecc27e4e48 last_name: Polshyn orcid: 0000-0001-8223-8896 - first_name: Tyler full_name: Naibert, Tyler last_name: Naibert - first_name: Victor full_name: Chua, Victor last_name: Chua - first_name: Raffi full_name: Budakian, Raffi last_name: Budakian citation: ama: 'Polshyn H, Naibert T, Chua V, Budakian R. Study of vortex states and dynamics in mesoscopic superconducting samples with MFM. In: APS March Meeting 2016. Vol 61. American Physical Society; 2016.' apa: 'Polshyn, H., Naibert, T., Chua, V., & Budakian, R. (2016). Study of vortex states and dynamics in mesoscopic superconducting samples with MFM. In APS March Meeting 2016 (Vol. 61). Baltimore, MD, United States: American Physical Society.' chicago: Polshyn, Hryhoriy, Tyler Naibert, Victor Chua, and Raffi Budakian. “Study of Vortex States and Dynamics in Mesoscopic Superconducting Samples with MFM.” In APS March Meeting 2016, Vol. 61. American Physical Society, 2016. ieee: H. Polshyn, T. Naibert, V. Chua, and R. Budakian, “Study of vortex states and dynamics in mesoscopic superconducting samples with MFM,” in APS March Meeting 2016, Baltimore, MD, United States, 2016, vol. 61, no. 2. ista: 'Polshyn H, Naibert T, Chua V, Budakian R. 2016. Study of vortex states and dynamics in mesoscopic superconducting samples with MFM. APS March Meeting 2016. APS: American Physical Society, Bulletin of the American Physical Society, vol. 61, E25.00007.' mla: Polshyn, Hryhoriy, et al. “Study of Vortex States and Dynamics in Mesoscopic Superconducting Samples with MFM.” APS March Meeting 2016, vol. 61, no. 2, E25.00007, American Physical Society, 2016. short: H. Polshyn, T. Naibert, V. Chua, R. Budakian, in:, APS March Meeting 2016, American Physical Society, 2016. conference: end_date: 2016-03-18 location: Baltimore, MD, United States name: 'APS: American Physical Society' start_date: 2016-03-14 date_created: 2022-02-08T09:55:09Z date_published: 2016-03-01T00:00:00Z date_updated: 2022-02-08T10:44:06Z day: '01' extern: '1' intvolume: ' 61' issue: '2' language: - iso: eng main_file_link: - open_access: '1' url: https://meetings.aps.org/Meeting/MAR16/Session/E25.7 month: '03' oa: 1 oa_version: Published Version publication: APS March Meeting 2016 publication_identifier: issn: - 0003-0503 publication_status: published publisher: American Physical Society quality_controlled: '1' status: public title: Study of vortex states and dynamics in mesoscopic superconducting samples with MFM type: conference user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9 volume: 61 year: '2016' ...