Ion beam assisted deposition of CoPt films

• Published in: Journal of magnetism and magnetic materials Vol. 193; no. 1; pp. 93 - 96
• Main Authors: Sharma, N, Casey, S.M, Jones, G.A, Grundy, P.J
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Amsterdam Elsevier B.V 01.03.1999; Elsevier Science
• Subjects: Condensed matter: electronic structure, electrical, magnetic, and optical properties; Cross-disciplinary physics: materials science; rheology; Exact sciences and technology; IBAD; Ion and electron beam-assisted deposition; ion plating; Magnetic properties; Magnetic properties and materials; Magnetic properties of monolayers and thin films; Magnetic properties of surface, thin films and multilayers; Materials science; Methods of deposition of films and coatings; film growth and epitaxy; Microstructure; Physics; Microstructure; IBAD; Magnetic properties; Platinum alloys; Composition effect; Magnetic hysteresis; Ion beam coating; Experimental study; Sputtering; Thin films; Binary alloys; Coercive force; Chemical composition; TEM; Cobalt alloys; Ion beam assisted deposition; Transition element alloys
• ISSN: 0304-8853
• DOI: 10.1016/S0304-8853(98)00495-8

The effect of low-energy ion beam assisted deposition on the magnetic and microstructural properties of Co 1− x Pt x alloy films in the composition range 0.2⩽ x⩽0.75 is studied. Magnetic hysteresis and transmission electron microscopy results are presented. In the Co-rich region, the imposition of an ion beam during film growth induces a faulted microstructure and high coercivities. In the vicinity of x=0.5 and 0.75, the ion beam assisted deposition does not modify the coercivity and has no noticeable effect on the microstructure. The possible origin of these effects is discussed.