Thermally Activated Vortex Nucleation as a Function of Thickness in Submicron Patterned Permalloy Thin Films

IEEE Transactions on Magnetics

Volumn 39, Issue 5 II, 2003, Pages 2510-2512

  Deak, James G ^a,b  

^a MICRON TECHNOLOGY INC   (United States)

^b NVE CORPORATION   (United States)

Author keywords

Langevin micromagnetics; Micromagnetism; MOKE; Permalloy; Thin film; Vortex state

Indexed keywords

COERCIVE FORCE; COMPUTER SIMULATION; MAGNETIC HYSTERESIS; MAGNETISM; NUCLEATION; SWITCHING;

MICROMAGNETICS;

MAGNETIC THIN FILMS;

EID: 0141953872     PISSN: 00189464     EISSN: None     Source Type: Journal    
DOI: 10.1109/TMAG.2003.816457     Document Type: Article

References (10)

1. N. Dao, S. L. Whittenburg, and R. P. Cowburn, "Micromagnetics simulation of deep-submicron supermalloy disks," J. Appl. Phys., vol. 90, no. 10, pp. 5235-5237, Nov. 2001.
2. H. Hoffmann and F. Steinbauer, "Single domain and vortex state in ferromagnetic circular nanodots," J. Appl. Phys., vol. 92, no. 9, pp. 5463-5467, Nov. 2002.
3. L. D. Buda, I. L. Prejbeanu, M. Demand, U. Ebels, and K. Ounadjela, "Vortex stability in circular Co(0001) dots," IEEE Trans. Mag., vol. 37, pp. 2061-2063, July 2001.
4. W. F. Brown Jr., Micromagnetics. New York: Krieger, 1978.
5. J. G. Deak, "Finite temperature micromagnetics and magnetic measurements of submicron patterned permalloy thin films," J. Appl. Phys., vol. 93, no. 10, pp. 6814-6816, 2003.
6. J.-G. Zhu, "Thermal magnetic noise spectra in spinvalve heads, " J. Appl Phys., vol. 91, no. 10, pp. 7273-7275, May 2002.
7. J. Shi, J. Li, and S. Tehrani, "Thermal fluctuation effects on quasistatic magnetic switching of patterned NiFi elements," J. Appl. Phys., vol. 91, no. 10, pp. 7458-7462, May. 2002.
8. M. Mansuripur, "Magnetization reversal dynamics in media of magnetooptical recording," J. Appl. Phys., vol. 63, p. 5809, 1988.
9. J.-G. Zhu and H. N. Bertram, "Micromagnetic studies of thin metallic films," J. Appl. Phys., vol. 63, no. 8, pp. 3248-3253, Apr. 1988.
10. N. Rizzo, M. DeHerrera, J. Janesky, B. Engel, J. Slaughter, and S. Tehrani, "Thermally activated magnetization reversal in submicron magnetic tunnel junctions for-magnetoresistive random access memory," Appl. Phys. Lett., vol. 80, no. 13, pp. 2335-2337, Jan. 2002.