TY - JOUR
T1 - Magnetic Properties and Texture of Sputtered Fe/Fe304Multilayer Films
AU - Kim, Y. K.
N1 - Funding Information:
Manuscript received July 8, 1993; revised December 16, 1993. This work has been supported by the Office of Basic Energy Sciences, Department of Energy, contract no. DE-FGO2-91ER 45458. Y . K. Kim was formerly with the Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139. He is now with Rocky Mountain Magnetics, Louisville, CO 80028. M. Oliveria is with the Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02 139. IEEE Log Number 9215785.
PY - 1994/5
Y1 - 1994/5
N2 - Polycrystalline Fe/Fe304 multilayers have been fabricated with varying Fe/Fe304 ratios, period (bilayer) thickness, number of periods, and deposition sequence. The films were deposited by RF magnetron sputtering. The coercivity was found to vary in a nonlinear fashion between that of Fe and Fe304. For selected multilayer geometries, the coercivity can be increased beyond that of single-layer Fe and Fe304 films. The magnetic saturation was observed to follow a linear mixture rule. These results suggest that a multilayer approach is useful for designing magnetic thin films and may allow fabrication of new materials for recording media applications. A secondary result was the ability to obtain highly texture polycrystalline films of both Fe and Fe304 on amorphous substrates for selected multilayer geometries. The texture results, which may be generally applicable, suggest that relatively thin multilayers of only a few periods may provide a means to control polycrystalline film texture on amorphous substrates.
AB - Polycrystalline Fe/Fe304 multilayers have been fabricated with varying Fe/Fe304 ratios, period (bilayer) thickness, number of periods, and deposition sequence. The films were deposited by RF magnetron sputtering. The coercivity was found to vary in a nonlinear fashion between that of Fe and Fe304. For selected multilayer geometries, the coercivity can be increased beyond that of single-layer Fe and Fe304 films. The magnetic saturation was observed to follow a linear mixture rule. These results suggest that a multilayer approach is useful for designing magnetic thin films and may allow fabrication of new materials for recording media applications. A secondary result was the ability to obtain highly texture polycrystalline films of both Fe and Fe304 on amorphous substrates for selected multilayer geometries. The texture results, which may be generally applicable, suggest that relatively thin multilayers of only a few periods may provide a means to control polycrystalline film texture on amorphous substrates.
UR - http://www.scopus.com/inward/record.url?scp=0028430010&partnerID=8YFLogxK
U2 - 10.1109/20.297770
DO - 10.1109/20.297770
M3 - Article
AN - SCOPUS:0028430010
SN - 0018-9464
VL - 30
SP - 1316
EP - 1323
JO - IEEE Transactions on Magnetics
JF - IEEE Transactions on Magnetics
IS - 3
ER -