Minor and major-loop studies of magnetic and reversal properties for synthetic antiferromagnetically coupled media

作者: Z. S. Shan , S. S. Malhotra , D. C. Stafford , G. Bertero , D. Wachenschwanz

DOI: 10.1063/1.1509864

关键词:

摘要: An approach has been developed to determine the magnetic properties for both top and bottom layers of synthetic antiferromagnetically coupled (SAF) media by measuring minor major loops at different H field sweep rates with an alternating gradient force magnetometer. Using this approach, effects layer thickness on thermally activated were investigated systematically. These results are valuable optimal design SAF media.

参考文章(12)
C.A. Ross, F.M. Ross, G. Bertero, K. Tang, Microstructural evolution and thermal stability of thin CoCrTa/Cr films for longitudinal magnetic recording media IEEE Transactions on Magnetics. ,vol. 34, pp. 282- 292 ,(1998) , 10.1109/20.650271
Eric E. Fullerton, D. T. Margulies, M. E. Schabes, M. Carey, B. Gurney, A. Moser, M. Best, G. Zeltzer, K. Rubin, H. Rosen, M. Doerner, Antiferromagnetically coupled magnetic media layers for thermally stable high-density recording Applied Physics Letters. ,vol. 77, pp. 3806- 3808 ,(2000) , 10.1063/1.1329868
P. Bruno, G. Bayreuther, P. Beauvillain, C. Chappert, G. Lugert, D. Renard, J. P. Renard, J. Seiden, HYSTERESIS PROPERTIES OF ULTRATHIN FERROMAGNETIC FILMS Journal of Applied Physics. ,vol. 68, pp. 5759- 5766 ,(1990) , 10.1063/1.346944
E. N. Abarra, A. Inomata, H. Sato, I. Okamoto, Y. Mizoshita, Longitudinal magnetic recording media with thermal stabilization layers Applied Physics Letters. ,vol. 77, pp. 2581- 2583 ,(2000) , 10.1063/1.1319183
B. Ramamurthy Acharya, Antony Ajan, E. Noel Abarra, Akihiro Inomata, Iwao Okamoto, Contribution of the magnetic anisotropy of the stabilization layer to the thermal stability of synthetic ferrimagnetic media Applied Physics Letters. ,vol. 80, pp. 85- 87 ,(2002) , 10.1063/1.1430858
V. G. Voznyuk, W. D. Doyle, E. N. Abarra, A comparison of the thermal stability factors in single layer and exchange-coupled longitudinal media Journal of Applied Physics. ,vol. 91, pp. 8608- 8610 ,(2002) , 10.1063/1.1453343
M. El-Hilo, A.M. de Witte, K. O'Grady, R.W. Chantrell, The sweep rate dependence of coercivity in recording media Journal of Magnetism and Magnetic Materials. ,vol. 117, pp. L307- L310 ,(1992) , 10.1016/0304-8853(92)90085-3
H. S. Chang, T. D. Lee, J. K. Park, K. H. Shin, K. Park, Magnetic and microstructural properties of CoCrTa/Cr/Al thin films (abstract) Journal of Applied Physics. ,vol. 79, pp. 5357- 5357 ,(1996) , 10.1063/1.361324
Z. S. Shan, S. S. Malhotra, D. C. Stafford, B. Bian, G. Bertero, D. Wachenschwanz, Effects of inserting thin Co Layers on the magnetic and reversal properties of synthetic antiferromagnetically coupled media Journal of Applied Physics. ,vol. 91, pp. 7682- 7684 ,(2002) , 10.1063/1.1457449
Roger D. Kirby, Mingjun Yu, D. J. Sellmyer, Activation volumes in thin film and particulate systems Journal of Applied Physics. ,vol. 87, pp. 5696- 5698 ,(2000) , 10.1063/1.372493