Microwave spectroscopy on magnetization reversal dynamics of nanomagnets with electronic detection | Zendy

Julie Grollier | Zendy; Marius V. Costache | Zendy; C. H. van der Wal | Zendy; B. J. van Wees | Zendy

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Microwave spectroscopy on magnetization reversal dynamics of nanomagnets with electronic detection

Author(s) -

Julie Grollier,

Marius V. Costache,

C. H. van der Wal,

B. J. van Wees

Publication year - 2006

Publication title -

journal of applied physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.699

H-Index - 319

eISSN - 1089-7550

pISSN - 0021-8979

DOI - 10.1063/1.2218464

Subject(s) - nanomagnet , magnetization , magnetization dynamics , condensed matter physics , microwave , magnetization reversal , spectroscopy , anisotropy , magnetoresistance , materials science , domain wall (magnetism) , magnetometer , single domain , magnetic anisotropy , nuclear magnetic resonance , physics , magnetic field , optics , quantum mechanics

We demonstrate a detection method for microwave spectroscopy on magnetizationreversal dynamics of nanomagnets. Measurement of the nanomagnet anisotropicmagnetoresistance was used for probing how magnetization reversal is resonantlyenhanced by microwave magnetic fields. We used Co strips of 2 um x 130 nm x 40nm, and microwave fields were applied via an on-chip coplanar wave guide. Themethod was applied for demonstrating single domain-wall resonance, and studyingthe role of resonant domain-wall dynamics in magnetization reversal.

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