This paper reports that longitudinally oriented CoCrPt thin films with Crs5W15 underlayer and CoCr intermediate layer for use of giant magnetoresistance heads were fabricated by magnetron sputtering. Without CoCr inte...This paper reports that longitudinally oriented CoCrPt thin films with Crs5W15 underlayer and CoCr intermediate layer for use of giant magnetoresistance heads were fabricated by magnetron sputtering. Without CoCr intermediate layer, CoCrPt layer deposited directly on Crs5W15 underlayer which has a dominant （200） texture exhibits unexpected （101l） texture. After introducing CoCr intermediate layer, the CoCrPt layer shifts into （1120） texture. This article studies the crystallographic hetero-epitaxy relationship between magnetic layer and underlayer in order to understand the appearance of CoCrPt （1011） texture on （200） textured Cr underlayer and the influence of CoCr intermediate layer on the inducement of CoCrPt （1120） texture. The CoCr intermediate layer plays a crucial role in controlling the microstructure and consequently the magnetic properties of the overlying magnetic layer.展开更多
The nanocomposite films of CoCrPt/Ag were prepared by DC and RF magnetron sputtering onto glass substrates and subsequent annealing. Magnetic and structure properties of these films have been investigated in detail. V...The nanocomposite films of CoCrPt/Ag were prepared by DC and RF magnetron sputtering onto glass substrates and subsequent annealing. Magnetic and structure properties of these films have been investigated in detail. Vibrating sample magnetometer(VSM), X-ray diffraction(XRD) and scanning probe microscope (SPM) were applied to study the magnetic properties and microstructure. Magnetic properties such as coercivity(H_c) are strongly dependent on the thickness of Ag and the annealing temperature. When the thickness of Ag underlayer is 20 nm, the coercivity reaches the maximum of 2 200×79.578 A/m. The XRD patterns show that the CoCrPt films are hcp structure lying on the film plane. The SPM images show that small and uniform magnetic grains are isolated by Ag. The effect of Ti underlayer on the magnetic properties is also investigated. These features make CoCrPt/Ag nanocomposite films very attractive for the next-generation of high-density recording.展开更多
基金Project supported by the National Natural Science Foundation of China (Grant No 10174028)
文摘This paper reports that longitudinally oriented CoCrPt thin films with Crs5W15 underlayer and CoCr intermediate layer for use of giant magnetoresistance heads were fabricated by magnetron sputtering. Without CoCr intermediate layer, CoCrPt layer deposited directly on Crs5W15 underlayer which has a dominant （200） texture exhibits unexpected （101l） texture. After introducing CoCr intermediate layer, the CoCrPt layer shifts into （1120） texture. This article studies the crystallographic hetero-epitaxy relationship between magnetic layer and underlayer in order to understand the appearance of CoCrPt （1011） texture on （200） textured Cr underlayer and the influence of CoCr intermediate layer on the inducement of CoCrPt （1120） texture. The CoCr intermediate layer plays a crucial role in controlling the microstructure and consequently the magnetic properties of the overlying magnetic layer.
基金Project ( 10274018 ) supported by the National Natural Science Foundation of China Project ( Z2001102 ) supportedby the Key Foundation of Hebei Normal University Project ( 2002116 ) supported by the Foundation of Hebei Provi
文摘The nanocomposite films of CoCrPt/Ag were prepared by DC and RF magnetron sputtering onto glass substrates and subsequent annealing. Magnetic and structure properties of these films have been investigated in detail. Vibrating sample magnetometer(VSM), X-ray diffraction(XRD) and scanning probe microscope (SPM) were applied to study the magnetic properties and microstructure. Magnetic properties such as coercivity(H_c) are strongly dependent on the thickness of Ag and the annealing temperature. When the thickness of Ag underlayer is 20 nm, the coercivity reaches the maximum of 2 200×79.578 A/m. The XRD patterns show that the CoCrPt films are hcp structure lying on the film plane. The SPM images show that small and uniform magnetic grains are isolated by Ag. The effect of Ti underlayer on the magnetic properties is also investigated. These features make CoCrPt/Ag nanocomposite films very attractive for the next-generation of high-density recording.
