Google Scholar: citations
Tailoring staircase-like hysteresis loops in electrodeposited trisegmented magnetic nanowires : a strategy toward minimization of interwire interactions
Zhang, Jin (Universitat Autònoma de Barcelona. Departament de Física)
Agramunt Puig, Sebastià (Universitat Autònoma de Barcelona. Departament de Física)
Valle Benedí, Nuria del (Universitat Autònoma de Barcelona. Departament de Física)
Navau Ros, Carles (Universitat Autònoma de Barcelona. Departament de Física)
Baró, M. D.. (Universitat Autònoma de Barcelona. Departament de Física)
Estrade, Sonia (Universitat de Barcelona. Departament d'Electrònica)
Peiro, Francesca (Universitat de Barcelona. Departament d'Electrònica)
Pané i Vidal, Salvador (Institute of Robotics and Intelligent Systems)
Nelson, Bradley J. (Institute of Robotics and Intelligent Systems)
Sánchez Moreno, Álvaro (Universitat Autònoma de Barcelona. Departament de Física)
Nogués, Josep (Institut Català de Nanociència i Nanotecnologia)
Pellicer Vilà, Eva Maria (Universitat Autònoma de Barcelona. Departament de Física)
Sort Viñas, Jordi (Universitat Autònoma de Barcelona. Departament de Física)

Date: 2016
Abstract: A new strategy to minimize magnetic interactions between nanowires (NWs) dispersed in a fluid is proposed. Such a strategy consists of preparing trisegmented NWs containing two antiparallel ferromagnetic segments with dissimilar coercivity separated by a nonmagnetic spacer. The trisegmented NWs exhibit a staircase-like hysteresis loop with tunable shape that depends on the relative length of the soft- and hard-magnetic segments and the respective values of saturation magnetization. Such NWs are prepared by electrodepositing CoPt/Cu/Ni in a polycarbonate (PC) membrane. The antiparallel alignment is set by applying suitable magnetic fields while the NWs are still embedded in the PC membrane. Analytic calculations are used to demonstrate that the interaction magnetic energy from fully compensated trisegmented NWs with antiparallel alignment is reduced compared to a single-component NW with the same length or the trisegmented NWs with the two ferromagnetic counterparts parallel to each other. The proposed approach is appealing for the use of magnetic NWs in certain biological or catalytic applications where the aggregation of NWs is detrimental for optimized performance.
Grants: European Commission 296679
European Commission 648454
Ministerio de Economía y Competitividad MAT2014-57960-C3-1-R
Ministerio de Economía y Competitividad MAT2013-41506
Ministerio de Economía y Competitividad SEV-2013-0295
Ministerio de Economía y Competitividad MAT2012-35370
Ministerio de Economía y Competitividad RYC-2012-10839
Ministerio de Economía y Competitividad CSD2009-00013
Agència de Gestió d'Ajuts Universitaris i de Recerca 2014/SGR-150
Agència de Gestió d'Ajuts Universitaris i de Recerca 2014/SGR-1015
Agència de Gestió d'Ajuts Universitaris i de Recerca 2014/PROD-00059
Rights: Tots els drets reservats.
Language: Anglès
Document: Article ; recerca ; Versió acceptada per publicar
Subject: Segmented nanowires ; Magnetic interactions ; Template-assisted electrodeposition ; Staircase hysteresis loops ; Nanomagnetism
Published in: ACS applied materials & interfaces, Vol. 8, issue 6 (2016) , p. 4109-4117, ISSN 1944-8252

DOI: 10.1021/acsami.5b11747


Postprint
29 p, 822.6 KB

The record appears in these collections:
Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > Group of Smart Nanoengineered Materials, Nanomechanics and Nanomagnetism (Gnm3) > SPIN-PORICS
Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > Catalan Institute of Nanoscience and Nanotechnology (ICN2)
Articles > Research articles
Articles > Published articles

 Record created 2016-02-03, last modified 2023-12-11



   Favorit i Compartir