DocumentCode

1320185

Title

Influence of Vacuum Annealing on Structural, Optical, Electrical, and Magnetic Properties of Zn $_{0.94}$ Co $</h1></div></div> </li> <li class='list-group-item border-0 py-3 px-0'> <div class='row g-0 align-items-center mb-2'><div class='col-12 col-md-3 fullRecLabelEnglish fw-bold mb-2 mb-md-0'><span class='text-muted small'>Author</span></div><div class='col-12 col-md-9 leftDirection leftAlign'><h2 class='mb-0 fw-semibold'>Lee, J.C. ; Lee, Y.H. ; Chiang, T.H. ; Su, C.W. ; Lee, J.S.</h2></div></div> </li> <li class='list-group-item border-0 py-3 px-0'> <div class='row g-0 align-items-center mb-2'><div class='col-12 col-md-3 fullRecLabelEnglish fw-bold mb-2 mb-md-0'><span class='text-muted small'>Author_Institution</span></div><div class='col-12 col-md-9 leftDirection leftAlign'>Inst. of Phys., Acad. Sinica, Taipei, Taiwan</div></div> </li> <li class='list-group-item border-0 py-3 px-0'> <div class='row g-0 align-items-center mb-2'><div class='col-12 col-md-3 fullRecLabelEnglish fw-bold mb-2 mb-md-0'><span class='text-muted small'>Volume</span></div><div class='col-12 col-md-9 leftDirection leftAlign'>48</div></div> </li> <li class='list-group-item border-0 py-3 px-0'> <div class='row g-0 align-items-center mb-2'><div class='col-12 col-md-3 fullRecLabelEnglish fw-bold mb-2 mb-md-0'><span class='text-muted small'>Issue</span></div><div class='col-12 col-md-9 leftDirection leftAlign'>11</div></div> </li> <li class='list-group-item border-0 py-3 px-0'> <div class='row g-0 align-items-center mb-2'><div class='col-12 col-md-3 fullRecLabelEnglish fw-bold mb-2 mb-md-0'><span class='text-muted small'>fYear</span></div><div class='col-12 col-md-9 leftDirection leftAlign'>2012</div></div> </li> <li class='list-group-item border-0 py-3 px-0'> <div class='row g-0 align-items-center mb-2'><div class='col-12 col-md-3 fullRecLabelEnglish fw-bold mb-2 mb-md-0'><span class='text-muted small'>Firstpage</span></div><div class='col-12 col-md-9 leftDirection leftAlign'>3430</div></div> </li> <li class='list-group-item border-0 py-3 px-0'> <div class='row g-0 align-items-center mb-2'><div class='col-12 col-md-3 fullRecLabelEnglish fw-bold mb-2 mb-md-0'><span class='text-muted small'>Lastpage</span></div><div class='col-12 col-md-9 leftDirection leftAlign'>3433</div></div> </li> <li class='list-group-item border-0 py-3 px-0'> <div class='row g-0 align-items-center mb-2'><div class='col-12 col-md-3 fullRecLabelEnglish fw-bold mb-2 mb-md-0'><span class='text-muted small'>Abstract</span></div><div class='col-12 col-md-9 leftDirection leftAlign'>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> </li> <li class='list-group-item border-0 py-3 px-0'> <div class='row g-0 align-items-center mb-2'><div class='col-12 col-md-3 fullRecLabelEnglish fw-bold mb-2 mb-md-0'><span class='text-muted small'>Keywords</span></div><div class='col-12 col-md-9 leftDirection leftAlign'>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> </li> <li class='list-group-item border-0 py-3 px-0'> <div class='row g-0 align-items-center mb-2'><div class='col-12 col-md-3 fullRecLabelEnglish fw-bold mb-2 mb-md-0'><span class='text-muted small'>fLanguage</span></div><div class='col-12 col-md-9 leftDirection leftAlign'>English</div></div> </li> <li class='list-group-item border-0 py-3 px-0'> <div class='row g-0 align-items-center mb-2'><div class='col-12 col-md-3 fullRecLabelEnglish fw-bold mb-2 mb-md-0'><span class='text-muted small'>Journal_Title</span></div><div class='col-12 col-md-9 leftDirection leftAlign'>Magnetics, IEEE Transactions on</div></div> </li> <li class='list-group-item border-0 py-3 px-0'> <div class='row g-0 align-items-center mb-2'><div class='col-12 col-md-3 fullRecLabelEnglish fw-bold mb-2 mb-md-0'><span class='text-muted small'>Publisher</span></div><div class='col-12 col-md-9 leftDirection leftAlign'>ieee</div></div> </li> <li class='list-group-item border-0 py-3 px-0'> <div class='row g-0 align-items-center mb-2'><div class='col-12 col-md-3 fullRecLabelEnglish fw-bold mb-2 mb-md-0'><span class='text-muted small'>ISSN</span></div><div class='col-12 col-md-9 leftDirection leftAlign'>0018-9464</div></div> </li> <li class='list-group-item border-0 py-3 px-0'> <div class='row g-0 align-items-center mb-2'><div class='col-12 col-md-3 fullRecLabelEnglish fw-bold mb-2 mb-md-0'><span class='text-muted small'>Type</span></div><div class='col-12 col-md-9 leftDirection leftAlign'><h2 class='mb-0 fw-semibold'>jour</h2></div></div> </li> <li class='list-group-item border-0 py-3 px-0'> <div class='row g-0 align-items-center mb-2'><div class='col-12 col-md-3 fullRecLabelEnglish fw-bold mb-2 mb-md-0'><span class='text-muted small'>DOI</span></div><div class='col-12 col-md-9 leftDirection leftAlign'>10.1109/TMAG.2012.2196264</div></div> </li> <li class='list-group-item border-0 py-3 px-0'> <div class='row g-0 align-items-center mb-2'><div class='col-12 col-md-3 fullRecLabelEnglish fw-bold mb-2 mb-md-0'><span class='text-muted small'>Filename</span></div><div class='col-12 col-md-9 leftDirection leftAlign'>6332589</div></div> </li> <div class='list-group-item border-0 py-3 px-0'> <div class='row g-0 align-items-center'><div class='col-12 col-md-3 fw-bold mb-2 mb-md-0'><span class='text-muted small'>Link To Document</span></div><div class='col-12 col-md-9 leftDirection leftAlign'><a class='text-break' href='https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1320185' target='_blank' rel=$ https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1320185