Fe enriched Sm-Co based high energy product sputtered films with precise crystal textures

Journal Article · Mon Apr 15 04:00:00 EDT 1991 · Journal of Applied Physics; (USA)

DOI:https://doi.org/10.1063/1.347846· OSTI ID:5694778

Hegde, H; Chen, K; Cadieu, F J ^[1]

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1. Physics Department, Queens College of CUNY, Flushing, New York 11367 (US)

Sm-Co based 2-17 type films with the Fe concentrations increased up to 30 at. % have been sputter synthesized from Fe enriched TDK targets through thermalized sputtering onto substrates heated to 400--500 {degree}C. The crystal structure of these Fe enriched films for total Sm concentrations of about 13 at. % was found to be rhombohedral 2-17, Th{sub 2}Zn{sub 17} type. A minor 1-5 phase was also found to be present. For Fe concentrations of around 20 at. %, at these relatively low deposition temperatures, the films could not be formed in the ordered 2-17 phase. Instead, these lower Fe concentration films formed in the disordered TbCu{sub 7} type structure. On post-deposition anneal at temperatures in the 400--500 {degree}C range for 1--2 h, the Fe enriched films showed significant improvements in the demagnetization behavior while no improvements were seen for the TbCu{sub 7} type films. The Fe enriched rhombohedral 2-17 type films exhibited unusually strong (220) texturing with I(113)/I(220){lt}1/40, for out of plane {ital c} axes to in plane textures, and I(300)/I(220){lt}1/50, for relative {ital c} axes in plane textures.

• OSTI ID: 5694778
• Journal Information: Journal of Applied Physics; (USA), Journal Name: Journal of Applied Physics; (USA) Vol. 69:8; ISSN 0021-8979; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ALLOYS
ANNEALING
COBALT ALLOYS
COHERENT SCATTERING
CRYSTAL STRUCTURE
DEMAGNETIZATION
DIFFRACTION
FILMS
HEAT TREATMENTS
IRON ALLOYS
MAGNETIC PROPERTIES
PHYSICAL PROPERTIES
RARE EARTH ALLOYS
SAMARIUM ALLOYS
SCATTERING
SPUTTERING
X-RAY DIFFRACTION