S. Nakahara, M. Hong, R. B. van Dover, E. M. Gyorgy, D. D. Bacon,
Microstructures of thin sputtered amorphous Tb0.26Fe0.74 and polycrystalline Fe films Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. ,vol. 4, pp. 543- 546 ,(1986) ,
10.1116/1.573881