Texture-induced magnetic interactions in ferrofluids

Urtizberea, A. ; Arizaga, A. ; Silva, N. J. ; Millán, A. (Universidad de Zaragoza) ; Palacio, F. ; Luis, F. (Universidad de Zaragoza)

Resumen: We report a method for reversibly controlling the strength of dipole-dipole interactions in maghemite ferrofluids. In order to induce some magnetic texture, the ferrofluid is exposed to a strong magnetic field while it is cooled from room temperature to below its freezing temperature. The experimental data show that the average strength of dipolar interactions increases with increasing texture and that the magnetic relaxation becomes slower.

Idioma: Inglés

DOI: 10.1063/1.4709725

Año: 2012

Publicado en: Journal of Applied Physics 111, 9 (2012), 093910 [6 pp.]
ISSN: 0021-8979

Factor impacto JCR: 2.21 (2012)

Categ. JCR: PHYSICS, APPLIED rank: 32 / 128 = 0.25 (2012) - Q1 - T1

Financiación: info:eu-repo/grantAgreement/EUR/FP6/NMP-MAGMANET-515767
Financiación: info:eu-repo/grantAgreement/ES/MICINN/CSD2007-00010
Financiación: info:eu-repo/grantAgreement/ES/MICINN/MAT2007-61621
Financiación: info:eu-repo/grantAgreement/ES/MICINN/MAT2009-13977-C03

Tipo y forma: Article (PostPrint)

Área (Departamento): Área Física Materia Condensada (Dpto. Física Materia Condensa.)