DocumentCode
1330504
Title
Magnetic Properties of Zn 
O Thin Films Grown by RF Magnetron Co-Sputtering in Ar and N . X-ray diffraction analysis indicated that all the samples had <i>c</i>-axis preferred orientation, without any segregated secondary phase. UV-visible spectroscopy and X-ray photoelectron spectroscopy showed that Co<sup>2+</sup> ions substituted tetrahedrally coordinated Zn<sup>2+</sup> ions site for the films. The electrical and magnetic properties were investigated by the Hall effect and superconducting quantum interference device (SQUID) measurements, respectively. The Zn<sub>1-x</sub>Co<sub>x</sub>O had <i>n</i>-type conduction with electron concentration of 10<sup>19</sup> cm<sup>-3</sup>, and exhibited paramagnetism. Due to the charge compensation by N doping, the Zn<sub>1-x</sub>Co<sub>x</sub>N<sub>y</sub>O<sub>1-y</sub> possessed large resistivity, and also presented paramagnetism, besides the film Zn<sub>1- x</sub>Co<sub>x</sub>N<sub>y</sub>O<sub>1-y</sub> (x = 0.0162, y = 0.0004) , which possessed room temperature ferromagnetism (RTFM).</div></div>
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<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'>Hall effect; II-VI semiconductors; X-ray diffraction; X-ray photoelectron spectra; electrical resistivity; ferromagnetic materials; magnetic thin films; paramagnetic materials; semiconductor growth; semiconductor thin films; semimagnetic semiconductors; sputter deposition; ultraviolet spectra; visible spectra; wide band gap semiconductors; Hall effect; N doping; RF magnetron cosputtering; SQUID measurements; UV-visible spectroscopy; X-ray diffraction analysis; X-ray photoelectron spectroscopy; XPS; XRD; Zn<sub>1-x</sub>Co<sub>x</sub>N<sub>y</sub>O<sub>1-y</sub>; Zn<sub>1-x</sub>Co<sub>x</sub>O; c-axis preferred orientation; charge compensation; cobalt ions; electrical properties; electron concentration; ferromagnetism; magnetic properties; n-type conduction; paramagnetism; resistivity; segregated secondary phase; sputtering gases; superconducting quantum interference device; temperature 293 K to 298 K; tetrahedrally coordinated zinc ion site; thin films; Atomic measurements; Ions; Magnetic hysteresis; Magnetic properties; Temperature measurement; Zinc oxide; Diluted magnetic semiconductor; ZnCoO; magnetron sputtering; nitrogen doping;</div></div>
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<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>
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<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>
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<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>
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<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>
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<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>
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<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.2011.2146243</div></div>
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<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'>6027793</div></div>
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