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Tunable zero field ferromagnetic resonance in arrays of bistable magnetic nanowires

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Medina, Joaquin De La Torre [UCL] Piraux, Luc [UCL] Encinas, Armando

The tunability of the zero field resonance frequency in arrays of bistable nanowires is demonstrated. Analysis of the resonance spectra for different remanent states show that the signal results from the superposition of the double absorption related to wires magnetized in both the positive and negative direction. An analytical model is proposed and validated which depends of the configuration dependent dipolar interaction and the peak amplitude of the superposing signals. The range over which the zero field resonance frequency can be tuned has a lower bound at remanence equal to one and a maxima when remanence vanishes.

Document type Article de périodique (Journal article) – Article de recherche
Access type Accès libre
Publication date 2010
Language Anglais
Journal information "Applied Physics Letters" - Vol. 96, no. 4 (2010)
Peer reviewed yes
Publisher Amer Inst Physics (Melville)
issn 0003-6951
e-issn 1077-3118
Publication status Publié
Affiliation UCL - SST/IMCN - Institute of Condensed Matter and Nanosciences
Keywords ferromagnetic resonance ; nanowires ; remanence
Links
  1. Piraux L., Encinas A., Vila L., Mátéfi-Tempfli S., Mátéfi-Tempfli M., Darques M., Elhoussine F., Michotte S., Magnetic and Superconducting Nanowires, 10.1166/jnn.2005.062
  2. Encinas Armando, Demand Marc, Vila Laurent, Piraux Luc, Huynen Isabelle, Tunable remanent state resonance frequency in arrays of magnetic nanowires, 10.1063/1.1507610
  3. Kuanr Bijoy K., Veerakumar V., Marson Ryan, Mishra Sanjay R., Camley R. E., Celinski Z., Nonreciprocal microwave devices based on magnetic nanowires, 10.1063/1.3124657
  4. Kuanr Bijoy K., Marson Ryan, Mishra Sanjay R., Kuanr Alka V., Camley R. E., Celinski Z. J., Gigahertz frequency tunable noise suppressor using nickel nanorod arrays and Permalloy films, 10.1063/1.3072824
  5. Baekil Nam, Yong-Ho Choa, Sung-Tag Oh, Sang Kwan Lee, Ki Hyeon Kim, Broadband RF Noise Suppression by Magnetic Nanowire-Filled Composite Films, 10.1109/tmag.2009.2020558
  6. Saib Aimad, Darques Michaël, Piraux Luc, Vanhoenacker-Janvier Danielle, Huynen Isabelle, Unbiased microwave circulator based on ferromagnetic nanowires arrays of tunable magnetization state, 10.1088/0022-3727/38/16/003
  7. Kou Xiaoming, Fan Xin, Zhu Hao, Xiao John Q., Tunable ferromagnetic resonance in NiFe nanowires with strong magnetostatic interaction, 10.1063/1.3103562
  8. Carignan Louis-Philippe, Boucher Vincent, Kodera Toshiro, Caloz Christophe, Yelon Arthur, Ménard David, Double ferromagnetic resonance in nanowire arrays, 10.1063/1.3194296
  9. Encinas A, Vila L, Darques M, George J M, Piraux L, Configurable multiband microwave absorption states prepared by field cycling in arrays of magnetic nanowires, 10.1088/0957-4484/18/6/065705
  10. Hertel Riccardo, Micromagnetic simulations of magnetostatically coupled Nickel nanowires, 10.1063/1.1412275
  11. Ciria M., O'Handley R.C., Surface- and strain-induced anisotropy in epitaxial films, 10.1016/s0304-8853(01)00899-x
Bibliographic reference Medina, Joaquin De La Torre ; Piraux, Luc ; Encinas, Armando. Tunable zero field ferromagnetic resonance in arrays of bistable magnetic nanowires. In: Applied Physics Letters, Vol. 96, no. 4 (2010)
Permanent URL http://hdl.handle.net/2078.1/34208