Oscillation feature of planar spin-torque oscillator for microwave-assisted magnetic recording

IEEE Transactions on Magnetics

Volumn 46, Issue 10, 2010, Pages 3738-3741

  Igarashi, Masukazu ^a   Suzuki, Yoshio ^a   Sato, Yo ^a  

^a HITACHI LTD   (Japan)

Author keywords

Field generation layer (FGL); microwave assisted magnetic recording (MAMR); negative perpendicular magnetocrystalline anisotropic material; planar FGL; spin torque oscillator (STO)

Indexed keywords

FIELD GENERATION LAYER (FGL); MAGNETOCRYSTALLINE; MICROWAVE ASSISTED; PLANAR FGL; SPIN TORQUE;

MAGNETIC DEVICES; MAGNETIC FIELDS; MAGNETIC PROPERTIES; MAGNETIC RECORDING; MAGNETIZATION; MATHEMATICAL MODELS; MICROWAVES; OPTICAL ANISOTROPY; TORQUE;

MICROWAVE OSCILLATORS;

EID: 77956989077     PISSN: 00189464     EISSN: None     Source Type: Journal    
DOI: 10.1109/TMAG.2010.2053040     Document Type: Article

References (13)

1. J. G. Zhu and X. Zhu, "Microwave assisted magnetic recording," IEEE Trans. Magn., vol.44, no.1, pp. 125-131, Jan. 2008. (Pubitemid 350281117)
2. W. Scholz and S. Batra, "Micromagnetic modeling of ferromagnetic resonance assisted switching," J. Appl. Phys., vol.103, p. 07F539, 2009. (Pubitemid 351538710)
3. S. Okamoto, N. Kikuchi, and O. Kitakami, "Magnetization switching behavior with microwave assistance," Appl. Phys. Lett., vol.93, p. 102506, 2008.
4. Y. Nozaki et al., "Microwave-assisted magnetization reversal in a Co/Pd multilayer with perpendicular magnetic anisotropy," Appl. Phys. Lett., vol.95, p. 082505, 2009.
5. M. Igarashi, Y. Suzuki, H. Miyamoto, Y. Maruyama, and Y. Shiroishi, "Mechanism of microwave assisted magnetic switching," J. Appl. Phys., vol.105, p. 07B907, 2009.
6. M. Igarashi, Y. Suzuki, H. Miyamoto, and Y. Shiroishi, "Effect of elliptical high-frequency field on microwave-assisted magnetic switching," IEEE Trans. Magn., vol.45, no.10, pp. 3711-3713, Oct. 2009.
7. X. Zhu and J. G. Zhu, "Bias-field-free microwave oscillator driven by perpendicularly polarized spin current," IEEE Trans. Magn., vol.42, no.10, pp. 2670-2672, Oct. 2006.
8. D. Houssameddine et al., "Spin-torque oscillator using a perpendicular polarizer and a planar free layer," Nature Mater., vol.6, p. 447, 2007. (Pubitemid 46876486)
9. M. Igarashi and H. Miyamoto, "Microwave assisted magnetic recording," Japanese Patent Application P2008-116546, Apr. 28, 2008.
10. A. Hashimoto, S. Saito, and M. Takahashi, "Proposal for the use of soft magnetic material with negative uniaxial magnetocrystalline anisotropy as an SUL to suppress both WATE and spike noise," J. Appl. Phys., vol.99, p. 08Q907, 2006.
11. V. A. Vas'ko, M. Kim, O. Mryasov, M. K. Minor, A. J. Freeman, and T. Kief, "Magnetic anisotropy of (110) Fe/Co superlattices," Appl. Phys. Lett., vol.89, p. 092502, 2006. (Pubitemid 44319958)
12. S. Okamoto, T. Shinozaki, T. Yamashita, N. Kikuchi, and O. Kitakami, "Large magnetic anisotropy in epitaxially grown Fe/Co multilayer films," J. Magn. Soc. Jpn., vol.33, pp. 451-454, 2009.
13. J. Slonczewski, "Current-driven excitation of magnetic multilayers," J. Magn. Magn. Mater., vol.159, p. L1, 1996. (Pubitemid 126356952)