Lithographically and electrically controlled strain effects on anisotropic magnetoresistance in (Ga,Mn)As

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dc.creatorDe Ranieri, E.
dc.creatorRushforth, A. W.
dc.creatorVyborny, K.
dc.creatorRana, U.
dc.creatorAhmed, E.
dc.creatorCampion, R. P.
dc.creatorFoxon, C. T.
dc.creatorGallagher, B. L.
dc.creatorIrvine, A. C.
dc.creatorWunderlich, J.
dc.creatorJungwirth, T.
dc.date2008-02-22
dc.date2008-02-27
dc.date.accessioned2026-07-07T10:15:05Z
dc.date.available2026-07-07T10:15:05Z
dc.descriptionIt has been demonstrated that magnetocrystalline anisotropies in (Ga,Mn)As are sensitive to lattice strains as small as 10^-4 and that strain can be controlled by lattice parameter engineering during growth, through post growth lithography, and electrically by bonding the (Ga,Mn)As sample to a piezoelectric transducer. In this work we show that analogous effects are observed in crystalline components of the anisotropic magnetoresistance (AMR). Lithographically or electrically induced strain variations can produce crystalline AMR components which are larger than the crystalline AMR and a significant fraction of the total AMR of the unprocessed (Ga,Mn)As material. In these experiments we also observe new higher order terms in the phenomenological AMR expressions and find that strain variation effects can play important role in the micromagnetic and magnetotransport characteristics of (Ga,Mn)As lateral nanoconstrictions.
dc.description11 pages, 4 figures, references fixed
dc.identifierhttps://arxiv.org/abs/0802.3344
dc.identifierhttp://arxiv.org/abs/0802.3344
dc.identifierNew J. Phys. 10 (2008), 065003
dc.identifierdoi:10.1088/1367-2630/10/6/065003
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/173069
dc.subjectMaterials Science
dc.titleLithographically and electrically controlled strain effects on anisotropic magnetoresistance in (Ga,Mn)As
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