Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/101446
Title: Adsorption transition of a grafted ferromagnetic filament controlled by external magnetic fields
Authors: Sánchez, P. A.
Novak, E. V.
Pyanzina, E. S.
Kantorovich, S. S.
Cerdà, J. J.
Sintes, T.
Issue Date: 2020
Publisher: American Physical Society
Citation: Adsorption transition of a grafted ferromagnetic filament controlled by external magnetic fields / P. A. Sánchez, E. V. Novak, E. S. Pyanzina, et al. — DOI 10.1103/PhysRevE.102.022609 // Physical Review E. — 2020. — Vol. 102. — Iss. 2. — 022609.
Abstract: Extensive Langevin dynamics simulations are used to characterize the adsorption transition of a flexible magnetic filament grafted onto an attractive planar surface. Our results identify different structural transitions at different ratios of the thermal energy to the surface attraction strength: filament straightening, adsorption, and the magnetic flux closure. The adsorption temperature of a magnetic filament is found to be higher in comparison to an equivalent nonmagnetic chain. The adsorption has been also investigated under the application of a static homogeneous external magnetic field. We found that the strength and the orientation of the field can be used to control the adsorption process, providing a precise switching mechanism. Interestingly, we have observed that the characteristic field strength and tilt angle at the adsorption point are related by a simple power law. © 2020 American Physical Society.
Keywords: GRAFTING (CHEMICAL)
MAGNETIC FIELDS
MOLECULAR DYNAMICS
ADSORPTION PROCESS
ADSORPTION TEMPERATURE
ADSORPTION TRANSITIONS
EXTERNAL MAGNETIC FIELD
LANGEVIN DYNAMICS
MAGNETIC FILAMENTS
STRUCTURAL TRANSITIONS
SWITCHING MECHANISM
ADSORPTION
ADSORPTION
ARTICLE
CONFORMATIONAL TRANSITION
MAGNETIC FIELD
URI: http://hdl.handle.net/10995/101446
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 85091192216
PURE ID: 13915639
fbdbc4f4-4091-4dfc-b59d-fc5a8a47b433
ISSN: 24700045
DOI: 10.1103/PhysRevE.102.022609
metadata.dc.description.sponsorship: This research was supported by the Russian Science Foundation, Grant No. 19-12-00209. T.S. acknowledges support by the Spanish AEI/MCI/FEDER(UE), Grant No. RTI2018-095441-B-C22, and The Maria de Maeztu R&D Program (Grant No. MDM-2017-0711). Simulations were carried out at the Vienna Scientific Cluster (VSC).
RSCF project card: 19-12-00209
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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