DocumentCode :
3560125
Title :
Magnetic and Recording Characteristics of CoCrPt-Oxide Media With a Mixture of {\\hbox {SiO}}_{2} and {\\h</div> </div> <div class='row'> <div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>Author : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>Tamai, Ichiro ; Araki, Ryoko ; Tanahashi, Kiwamu</div> </div> <div class='row'> <div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>Author_Institution : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>Central Res. Lab., Hitachi Ltd., Odawara</div> </div> <div class='row'> <div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>Volume : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>44</div> </div> <div class='row'> <div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>Issue : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>11</div> </div> <div class='row'> <div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>fYear : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>2008</div> </div> <div class='row'> <div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>Firstpage : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>3492</div> </div> <div class='row'> <div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>Lastpage : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>3495</div> </div> <div class='row'> <div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>Abstract : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>We have investigated the capability of dual oxide by comparing the magnetic and recording characteristics of CoCrPt-oxide media with SiO<sub>2</sub>, TiO<sub>2</sub>, or a mixture of SiO<sub>2</sub> and TiO<sub>2</sub>. We found that CoCrPt-oxide films with a mixture of SiO<sub>2</sub> and TiO<sub>2</sub> have a higher coercivity, particularly at a low O<sub>2</sub> partial pressure, than CoCrPt-oxide films with SiO<sub>2</sub> or TiO<sub>2</sub>. Media with SiO<sub>2</sub> or a mixture of SiO<sub>2</sub> and TiO<sub>2</sub> have a higher signal-to-noise ratio (SNR) than that of media with TiO<sub>2</sub>. The high SNR of the media with a mixture of SiO<sub>2</sub> and TiO<sub>2</sub> was obtained in narrower magnetic-core-width conditions than those of the media with SiO<sub>2</sub> , suggesting that the dual oxide media have greater potential for areal density growth than the single oxide media. Transmission electron microscopy revealed that the dual oxide film has narrower and more uniform grain boundaries than the single oxide films. We believe that these microstructures will lead to higher packing density with reduced dispersion of intergranular exchange coupling, which is one possible reason for the improved recording performance.</div> </div> <div class='row'> <div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>Keywords : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>chromium alloys; cobalt alloys; coercive force; exchange interactions (electron); grain boundaries; magnetic recording; magnetic thin films; platinum alloys; silicon compounds; titanium compounds; transmission electron microscopy; CoCrPt-SiO<sub>2</sub>-TiO<sub>2</sub>; areal density growth; coercivity; grain boundaries; intergranular exchange coupling; magnetic characteristics; magnetic-core-width conditions; microstructures; packing density; partial pressure; recording characteristics; signal-noise ratio; CoCrPt-oxide media; perpendicular recording; segregant; signal-to-noise ratio;</div> </div> <div class='row'> <div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>fLanguage : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>English</div> </div> <div class='row'> <div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>Journal_Title : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>Magnetics, IEEE Transactions on</div> </div> <div class='row'> <div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>Publisher : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>ieee</div> </div> <div class='row'> <div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>ISSN : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>0018-9464</div> </div> <div class='row'> <div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>Type : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>jour</div> </div> <div class='row'> <div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>DOI : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>10.1109/TMAG.2008.2002380</div> </div> <div class='row'> <div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>Filename : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>4717463</div> </div> <div class='row'> <div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>Link To Document : </div><div class='valueDiv leftDirection leftAlign fullRecValueEnglish col-xs-8 col-sm-10'><a href='https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=3560125' target='_blank'>https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=3560125</a></div> </div> </div> <div class='leftDiv labelDiv leftAlign backLinkEnglish'><a href='javascript:history.back()'><img src='../CSS/Back.png' class='backImage' alt=