مرکز منطقه ای اطلاع رساني علوم و فناوري - Influence of Vacuum Annealing on Structural, Optical, Electrical, and Magnetic Properties of Zn<formula formulatype="inline"> <img src="/images/tex/18730.gif" alt="_{0.94}"> </formula>Co<formula formulatype="inline"> <img src="/images/tex/20515.gif" alt="

Title :

Influence of Vacuum Annealing on Structural, Optical, Electrical, and Magnetic Properties of Zn $_{0.94}$ Co $</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'>Lee, J.C. ; Lee, Y.H. ; Chiang, T.H. ; Su, C.W. ; Lee, J.S.</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'>Inst. of Phys., Acad. Sinica, Taipei, Taiwan</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'>48</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'>2012</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'>3430</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'>3433</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'>The Zn<sub>0.94</sub>Co<sub>0.05</sub>Al<sub>0.01</sub>O diluted magnetic semiconductor (DMS) thin films were made by rf magnetron co-sputtering, and annealed in vacuum at 500°C (for 0, 20, 40, and 80 min, respectively). The films have a single ZnO wurtzite structure with -axis preferred orientations, without any segregated secondary phase, and Co<sup>2+</sup> ions substitute tetrahedrally coordinated Zn<sup>2+</sup> ions site. The as-grown film is insulating and in a state of tensile stress parallel to the c-axis. After annealing in vacuum, the films have tensile stresses parallel to the (002) plane, and become conductive; moreover, the carrier concentrations increase with increasing the annealing time. The as-grown film possesses the room-temperature ferromagnetism (RTFM) and the saturation magnetization (M<sub>s</sub>) is 0.8 μ<sub>B</sub>/Co. As the film is annealed in vacuum, the value of M<sub>s</sub> is reduced first then enhanced with the increase of annealing time.</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'>II-VI semiconductors; aluminium compounds; annealing; carrier density; cobalt compounds; electrical conductivity; ferromagnetic materials; magnetic thin films; magnetisation; semiconductor thin films; semimagnetic semiconductors; sputter deposition; texture; ultraviolet spectra; visible spectra; wide band gap semiconductors; zinc compounds; Zn<sub>0.94</sub>Co<sub>0.05</sub>Al<sub>0.01</sub>O; c-axis preferred orientations; carrier concentrations; conductivity; diluted magnetic semiconductor thin films; electrical properties; magnetic properties; optical properties; rf magnetron cosputtering; room-temperature ferromagnetism; saturation magnetization; structural properties; temperature 293 K to 298 K; temperature 500 degC; tensile stress; time 0 min to 80 min; vacuum annealing; wurtzite structure; Annealing; Magnetic properties; Magnetic semiconductors; Magnetomechanical effects; Saturation magnetization; Zinc oxide; (Co, Al)-codoped ZnO; RF magnetron co-sputtering; diluted magnetic semiconductor (DMS); room temperature ferromagnetism (RTFM); vacuum annealing;</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.2012.2196264</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'>6332589</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=1320185' target='_blank'>https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=1320185</a></div> </div> </div> <div class='leftDiv labelDiv leftAlign backLinkEnglish'><a href='javascript:history.back()'><img src='../CSS/Back.png' class='backImage' alt=$