Special issue/Magnetic recording media by means of wet processes. Secret development story of electroless plated magnetic recording media.
نویسندگان
چکیده
منابع مشابه
Fast and Slow Magnetization Processes in Magnetic Recording Media
Information loss due to thermal activation is a major concern in ultrahigh-density magnetic recording media. The usually considered mechanism is thermally activated magnetization reversal over micromagnetic energy barriers. However, micromagnetic approaches ignore local anisotropy fluctuations, which translate into a time-dependent reduction of the remanent magnetization. The effect is negligib...
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Hard disk drives (HDDs) were developed in 1956 and initially were applied mainly as external memories for mainframe computers. Subsequent advances in HDD technologies leading to higher areal density, smaller size and lower cost have brought HDDs into widespread use for their convenience. HDDs are now the mainstream external memories used for personal computers and mainframe computers. Recently,...
متن کاملThe investigation of nanostructures of magnetic recording media by TEM
Diverse applications of transmission electron microscopy techniques used in investigating the nanostructures of magnetic recording materials are presented. Specimen preparation methods are discussed for the specific case of magnetic thin film recording media. Investigations of the crystallographic orientation, grain size and distribution, and interfacial nanostructures are presented. 2003 Acta ...
متن کاملRecording Processes in Perpendicular Patterned Media Using Longitudinal Magnetic Recording Heads
Experimental study of the recording processes in patterned magnetic media is presented. The reading of patterned media using spin-valve elements is compared to the signal levels from magneto-resistive sensors. Writing and reading of patterned columnar media at high areal densities is demonstrated. A new experimental technique has been developed that allows precise determination of the location ...
متن کاملHigh Anisotropy CoPtCrB Magnetic Recording Media
We describe the synthesis, magnetism and structure of CoPtCrB alloys with Pt concentrations from 10 43 %. The Cr concentration in the alloys was 15-17 % and the B concentration was 9-11 %. The magnetic anisotropy and coercivity increase with increasing Pt up to M 30%, plateau at M 35,000 Oe and w 6000 Oe, respectively, and then decrease. Transmission electron microscopy results show the media f...
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ژورنال
عنوان ژورنال: Journal of the Surface Finishing Society of Japan
سال: 1991
ISSN: 0915-1869,1884-3409
DOI: 10.4139/sfj.42.273