Spin Transfer Induced Noise in CPP Read Heads

IEEE Transactions on Magnetics

Volumn 40, Issue 1 II, 2004, Pages 182-188

  Zhu, Jian Gang ^a   Zhu, Xiaochun ^a  

^a CARNEGIE MELLON UNIVERSITY   (United States)

Author keywords

1 f noise; Current perpendicular to plane (CPP) spin valve read heads; Mag noise; Spin transfer

Indexed keywords

ANTIFERROMAGNETIC MATERIALS; COMPUTER SIMULATION; CURRENT DENSITY; DAMPING; ENERGY DISSIPATION; GIANT MAGNETORESISTANCE; MAGNETIC FIELD EFFECTS; MAGNETIC HEADS; MAGNETIZATION; POLARIZATION; TUNNEL JUNCTIONS;

1/F NOISE; CURRENT-PERPENDICULAR-TO-PLANE (CPP) SPIN VALVE READ HEADS; MAG-NOISE; SPIN TRANSFER;

SPURIOUS SIGNAL NOISE;

EID: 1342329384     PISSN: 00189464     EISSN: None     Source Type: Journal    
DOI: 10.1109/TMAG.2003.821202     Document Type: Article

References (14)

1. 2 and above," IEEE Trans. Magn., vol. 38, pp. 72-77, Jan. 2002.
2. 2,"IEEE Trans. Magn., vol. 38, pp. 78-83, Jan. 2002.
3. A. Tanaka, Y. Shimizu, Y. Seyama, K. Nagasaka, R. Kondo, H. Oshima, S. Eguchi, and H. Kanai, "Spin-valve heads in the current-perpendicular-to-plane mode for ultrahigh-density recording," IEEE Trans. Magn., vol. 38, pp. 84-88, Jan. 2002.
4. R. Rottmayer and J.-G. Zhu, "A new design for an ultra-high density magnetic recording head using a GMR sensor in the CPP mode," IEEE Trans. Magn., vol. 31, pp. 2597-2599, Nov. 1995.
5. M. A. Seigler et al., "Characterization of magnetic field sensor and magnetic recording heads that utilize a CPP CoFe/Cu multilayer," Tampa, FL, Paper CA-05, Nov: 11-15, 2002.
6. N. Smith and P. Arnett, "White-noise magnetization fluctuations in magnetoresistive heads," Appl. Phys. Lett., vol. 78, p. 1448, 2001.
7. J.-G. Zhu, "Thermal magnetic noise and spectra in spin valve heads," J. Appl. Phys., vol. 91, p. 7273, 2002.
8. Y. Zhou, J.-G. Zhu, and N. Kim, "Thermally excited ferromagnetic resonance as diagnostic tool for spin valve heads," J. Appl. Phys., vol. 93, p. 8579, 2003.
9. L. Berger, "Emission of spin waves by a magnetic multilayer traversed by a current," Phys. Rev. B, Condens. Matter, vol. 54, p. 9353, 1996.
10. J. C. Slonczewski, "Excitation of spin waves by an electric current," J. Magn. Magn. Mater., vol. 159, no. L1, 1996.
11. _, "Currents and torques in metallic magnetic multilayers," J. Magn. Magn. Mater., vol. 247, p. 324, 2002.
12. J. A. Katine, F. J. Albert, and R. A. Buhrman, "Current-driven magnetization reversal and spin-wave excitations in Co/Cu/Co pillars," Phys. Rev. Lett., vol. 84, p. 3149, 2000.
13. J.-G. Zhu, "Interactive phenomena in magnetic thin films," Ph.D. dissertation, Dept. Physics, Univ. California, San Diego, 1989.
14. H. Suhl, "The theory of ferromagnetic resonance at high signal powers," J. Phys. Chem. Solids, vol. 1, p. 209, 1957.