Display options
Cite
Rothman J, Kläui M, Lopez-Diaz L, et al. Observation of a bi-domain state and nucleation free switching in mesoscopic ring magnets. Phys Rev Lett. 2001;86(6):1098-101doi: 10.1103/PhysRevLett.86.1098.
Rothman, J., Kläui, M., Lopez-Diaz, L., Vaz, C. A., Bleloch, A., Bland, J. A., Cui, Z., & Speaks, R. (2001). Observation of a bi-domain state and nucleation free switching in mesoscopic ring magnets. Physical review letters, 86(6), 1098-101. https://doi.org/10.1103/PhysRevLett.86.1098
Rothman, J, et al. "Observation of a bi-domain state and nucleation free switching in mesoscopic ring magnets." Physical review letters vol. 86,6 (2001): 1098-101. doi: https://doi.org/10.1103/PhysRevLett.86.1098
Rothman J, Kläui M, Lopez-Diaz L, Vaz CA, Bleloch A, Bland JA, Cui Z, Speaks R. Observation of a bi-domain state and nucleation free switching in mesoscopic ring magnets. Phys Rev Lett. 2001 Feb 05;86(6):1098-101. doi: 10.1103/PhysRevLett.86.1098. PMID: 11178019.
Copy Download .nbib Format: NLM
Share it on

Phys Rev Lett. 2001 Feb 05;86(6):1098-101. doi: 10.1103/PhysRevLett.86.1098.

Observation of a bi-domain state and nucleation free switching in mesoscopic ring magnets.

Physical review letters

J Rothman, M Kläui, L Lopez-Diaz, C A Vaz, A Bleloch, J A Bland, Z Cui, R Speaks

Affiliations

  1. Cavendish Laboratory, University of Cambridge, United Kingdom.

PMID: 11178019 DOI: 10.1103/PhysRevLett.86.1098

Abstract

We present the results of a study of the magnetic properties of an array of 34-nm thick Co(100) epitaxial ring magnets, with inner and outer diameters of d(in) = 1.3 microm and d(out) = 1.6 microm, respectively. Magnetic measurements and micromagnetic simulations show that a two step switching process occurs at high fields, indicating the existence of two different stable states. In addition to the vortex state, which occurs at intermediate fields, we have identified a new bi-domain state, which we term the onion state, corresponding to opposite circulation of the magnetization in each half of the ring. The onion state is stable at remanence and undergoes a simple and well characterized nucleation free switching.

Publication Types