Magnetoresistance measurement of tailored Permalloy nanocontacts

Patra, Ajit; Bieren, Arndt von; Krzyk, Stephen; Rhensius, Jan; Heyderman, Laura; Hoffmann, Regina; Kläui, Mathias

Magnetoresistance measurement of tailored Permalloy nanocontacts

Dateien

Patra_Magnetoresistance.pdfGröße: 201.38 KBDownloads: 258

Datum

2010

Autor:innen

Patra, Ajit

Bieren, Arndt von

Krzyk, Stephen

Rhensius, Jan

Heyderman, Laura

Hoffmann, Regina

Kläui, Mathias

Angaben zur Forschungsförderung

European Union (EU): 208162

Projekt

MASPIC (7. RP)

Open Access-Veröffentlichung

Open Access Green

Sammlungen

Physik
Zukunftskolleg

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Physical Review B. 2010, 82(13). ISSN 1098-0121. Available under: doi: 10.1103/PhysRevB.82.134447

Zusammenfassung

We study the evolution of the magnetoresistance (MR) in Permalloy nanocontacts prepared by controlled low-temperature UHV electromigration in nanoring segment structures with constrictions. The ring geometry allows for the controlled and reproducible positioning of a domain wall in the nanocontacts. We observe three different resistance levels, corresponding to distinct domain-wall positions. A change in the sign of the MR difference, between a domain wall at the constriction and a domain wall next to the constriction, occurs with decreasing constriction width. This is in line with our micromagnetic simulations, where the MR is calculated based on the anisotropic MR (AMR) effect.

Fachgebiet (DDC)

530 Physik

Zitieren

ISO 690

PATRA, Ajit, Arndt von BIEREN, Stephen KRZYK, Jan RHENSIUS, Laura HEYDERMAN, Regina HOFFMANN, Mathias KLÄUI, 2010. Magnetoresistance measurement of tailored Permalloy nanocontacts. In: Physical Review B. 2010, 82(13). ISSN 1098-0121. Available under: doi: 10.1103/PhysRevB.82.134447

BibTex

@article{Patra2010Magne-19844,
  year={2010},
  doi={10.1103/PhysRevB.82.134447},
  title={Magnetoresistance measurement of tailored Permalloy nanocontacts},
  number={13},
  volume={82},
  issn={1098-0121},
  journal={Physical Review B},
  author={Patra, Ajit and Bieren, Arndt von and Krzyk, Stephen and Rhensius, Jan and Heyderman, Laura and Hoffmann, Regina and Kläui, Mathias}
}

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