Chin. Phys. Lett.  2008, Vol. 25 Issue (7): 2642-2644    DOI:
Original Articles |
Fabrication and Characterization of SmCo5/Fe65Co35 and SmCo5/Fe Composite Spring Exchange Magnets
F. Shahzad1, S. A. Siddiqi1, J. Zhou2
1Centre for Solid State Physics, University of the Punjab, Lahore-54590, Pakistan2Department of Physics, University of California, Berkeley, California-94720, USA
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F. Shahzad, S. A. Siddiqi, J. Zhou 2008 Chin. Phys. Lett. 25 2642-2644
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Abstract SmCo5/Fe65Co35 and SmCo5/Fe spring exchange magnets are fabricated by dc magnetron sputtering on MgO substrates and 100-nm-thick Si3N4 membranes, respectively. The base pressure of sputtering chamber is kept below 10-7 Torr, and Ar pressure is 3 to 8mTorr. The samples are characterized by an x-ray diffractometer, a superconducting quantum interference magnetometer, and high resolution magnetic soft x-ray microscopy. We obtain the complete exchange coupling and single phase behaviour of composite magnets. The (BH)max value achieved is 28.8MGOe.
Keywords: 75.75.+a      68.65.Ac      75.30.Gw      07.85.Tt     
Received: 16 January 2008      Published: 26 June 2008
PACS:  75.75.+a  
  68.65.Ac (Multilayers)  
  75.30.Gw (Magnetic anisotropy)  
  07.85.Tt (X-ray microscopes)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2008/V25/I7/02642
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F. Shahzad
S. A. Siddiqi
J. Zhou
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