Crystallographic and magnetic properties of CoCrPt/Cr films produced by pulsed laser deposition

The crystallographic structure and magnetic properties of CoCrPt(30 nm)/Cr( SO nm) films fabricated by poised laser deposition have been studied at var ious substrate temperatures and ion bombardment energies. Cr(002) texture i s developed at 350-500 degreesC where increased coercivity is observed from the Go-alloy layers, while Cr( 110) texture is formed at 300 degreesC, The average grain size of the Cr layers gradually increases with substrate tem perature from similar to 10 nm to similar to 20 nm, which is comparable to that of sputtered films, A Cr(002) X-ray peak is not observed from films gr own at 400 degreesC with Ar ion bombardment (>50 eV), The coercivity and sq uareness of the magnetic hysteresis loops decrease as the beam energy incre ases, which may be attributed to the absence of Cr(002) texture.