DocumentCode :
766056
Title :
Magnetotransport Properties in Epitaxial Exchange-Biased La
Ca
MnO
/La
Ca 
MnO 
/La  and antiferromagnetic (AF) oxide materials have attracted increased attention given the exchange bias or exchange anisotropy phenomenon. Research on magnetic oxide superlattices has focused toward the technological goals of increasing magnetoresistance in lower applied magnetic fields and more useful temperature ranges for various applications. Superlattices of F-LCMO and AF-LCMO layers were grown on (001)-oriented SrTiO<sub>3</sub> substrates. We studied the temperature dependence of magnetotransport properties for a series of [AF-LCMO (7.6 nm)/F-LCMO (t<sub>F</sub>)]<sub>N</sub> superlattices as a function of the ferromagnetically doped layer thickness, t<sub>F</sub>, while the antiferromagnetic (AF) layer thickness, t<sub>AF</sub>, was kept constant. Magnetotransport measurements at different temperatures were done on a series of [AF(7.6 nm)/F(t<sub>F</sub>)]<sub>N</sub> superlattices. The ZFC resistance has a maximum at negative fields, for all multilayers, with descending fields (from 1 to -1 kOe). In all samples a shift along the field axis of the FC loop with respect to that of the ZFC loop is observed. The H<sub>ex</sub> values determined from these displacements of the FC loops of the magnetoresistance loops increase when temperature decreases and its magnitude also depends on the ferromagnetic layer thickness</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'>X-ray diffraction; calcium alloys; ferromagnetic materials; lanthanum alloys; magnetic anisotropy; magnetic multilayers; magnetoresistance; manganese compounds; metallic superlattices; sputter deposition; transmission electron microscopy; AF oxide materials; AF-LCMO layers; F-LCMO layers; La<sub>0.66</sub>Ca<sub>0.33</sub>MnO<sub>3</sub>-La<sub>0.33 </sub>Ca<sub>0.66</sub>; SrTiO<sub>3</sub>; X-ray diffraction; ZFC resistance; antiferromagnetic oxide materials; epitaxial exchange-biased; exchange anisotropy; exchange interactions; ferromagnetic layer thickness; ferromagnetic superlattices; interface magnetism; magnetic anisotropy; magnetic multilayers; magnetoresistance; magnetotransport properties; sputter deposition; transmission electron microscopy; Antiferromagnetic materials; Focusing; Magnetic anisotropy; Magnetic materials; Magnetic properties; Magnetic superlattices; Magnetoresistance; Perpendicular magnetic anisotropy; Temperature dependence; Temperature measurement; Exchange interactions; X-ray diffraction; interface magnetism; magnetic anisotropy; magnetic multilayers; magnetoresistance; sputter deposition; transmission electron microscopy;</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.2006.878406</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'>1704503</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=766056' target='_blank'>https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=766056</a></div>
</div>
</div>
<div class='leftDiv labelDiv leftAlign backLinkEnglish'><a href='javascript:history.back()'><img src='../CSS/Back.png' class='backImage' alt=)
Ca MnO /La Ca MnO /La