Observation of stray fields from hard-disk writer poles up to 2 GHz

IEEE Transactions on Magnetics

Volumn 43, Issue 6, 2007, Pages 2205-2207

  Koblischka, M R ^a   Wei, J D ^a   Sulzbach, T ^b   Johnston, A D ^c   Hartmann, U ^a  

^a SAARLAND UNIVERSITY   (Germany)

^b NANOWORLD SERVICES GMBH   (Germany)

^c SEAGATE TECHNOLOGY   (United States)

Author keywords

Frequency characteristics; Hard disk write head; High frequency measurement; Magnetic force microscope

Indexed keywords

COATINGS; FERRITES; MAGNETIC FIELD EFFECTS; MAGNETIC FORCE MICROSCOPY; NATURAL FREQUENCIES;

FREQUENCY CHARACTERISTICS; HARD-DISK WRITE HEAD; HIGH-FREQUENCY MEASUREMENT;

HARD DISK STORAGE;

EID: 34249079368     PISSN: 00189464     EISSN: None     Source Type: Journal    
DOI: 10.1109/TMAG.2007.894122     Document Type: Article

References (14)

1. R. Proksch, P. Neilson, S. Austvold, and J. J. Schmidt, "Measuring the gigahertz response of recording heads with the magnetic force micro-scope," Appl. Phys. Lett., vol. 74, pp. 1308-1310, Mar. 1999.
2. M. Abe and Y. Tanaka, "High frequency write head measurements with the phase detection magnetic force microscope," J. Appl. Phys., vol. 89, pp. 6766-6768, Jun. 2001.
3. M. Abe and Y. Tanaka, "A study of high-frequency characteristics of write heads with the AC phase high-frequency magnetic force micro-scope," IEEE Trans. Magn., vol. 38, no. 1, pp. 45-49, Jan. 2002.
4. S. Li, S. Stokes, Y. Liu, S. Foss-Schrader, W. Zhu, and D. Palmer, "Dual vibrational magnetic force microscopy," J. Appl. Phys., vol. 91, pp. 7346-7348, May 2002.
5. M. R. Koblischka, J. D. Wei, M. Kirsch, and U. Hartmann, "High frequency magnetic force microscopy-imaging of hard disk write heads," Jpn. J. Appl. Phys., vol. 45, no. 3B, pp. 2238-2241, 2006.
6. M. R. Koblischka, J. D. Wei, and U. Hartmann, "Optimizing the HF-MFM technique," presented at the ICN&T 2006, Basel, Switzerland.
7. M. R. Koblischka, M. Kirsch, J. D. Wei, and U. Hartmann, "Preparation of ferrite-coated MFM cantilevers," J. Magn. Magn. Mat., to be published.
8. J. D. Wei, M. Kirsch, M. R. Koblischka, and U. Hartmann, "Optimization of high-frequency magnetic force microscopy by ferrite-coated cantilevers," J. Magn. Magn. Mat., to be published.
9. M. R. Koblischka, J. D. Wei, C. Richter, T. Sulzbach, and U. Hartmann, "High-frequency MFM characterization of magnetic recording writer poles using advanced MFM cantilevers," J. Appl. Phys., submitted for publication.
10. N. Matsushita, C. P. Chong, T. Mizutani, and M. Abe, "Ni-Zn ferrite films with high permeability at 1 GHz prepared at 90°C," J. Appl. Phys., vol. 91, pp. 7376-7378, May 2002.
11. Nanoworld Services GmbH, product flyer.
12. A. V. Nazarov, M. L. Plumer, and B. B. Pant, "High-frequency magnetic force microscopy characterization of magnetic recording writer poles," J. Appl. Phys., vol. 97, p. 10N902, May 2005.
13. R. G. Ashar, Magnetic Disk Drive Technology. New York: IEEE Press, 1997, p. 51.
14. K. Hemmes, W. Lisowski, J. C. Lodder, L. J. Hanekamp, and Th. J. A. Popma, "Surface and bulk magnetic behaviour of sputtered CoCr films," J. Phys. D: Appl. Phys., vol. 19, pp. 1311-1320, 1986.