DocumentCode :
38747
Title :
Theoretical Study on Tunneling Magnetoresistance of Magnetic Tunnel Tunctions with
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, Tohoku Univ., Sendai, Japan</div>
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<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'>50</div>
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<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'>1</div>
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<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'>2014</div>
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<div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>fDate : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>Jan. 2014</div>
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<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'>1</div>
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<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'>4</div>
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<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 investigated spin dependent transport properties of magnetic tunnel junctions (MTJs) with D0<sub>22</sub>-Mn<sub>3</sub>Ga or Mn<sub>3</sub>Ge using the first-principles electronic and ballistic-transport calculations. We found that tunneling magntoresistance (TMR) ratios of Mn<sub>3</sub>Ga/MgO(1 nm)/Mn<sub>3</sub>Ga(001) MTJs depend strongly on the interfacial structures, which are about 600% for MnMn termination and 40% for MnGa termination. The relatively small TMR ratio of MnGa termination can be attributed to a presence of the Δ<sub>1</sub> state around the Fermi level in both spin channels. On the other hand, we obtained over 4000% TMR ratios both for MnMn and MnGe terminations of Mn<sub>3</sub> Ge-based MTJs due to the half-metallic electronic structure on the Δ<sub>1</sub> state. We concluded that D0<sub>22</sub>-Mn<sub>3</sub>Ge is a promising material providing large TMR effects as well as strong perpendicular magnetic anisotropy.</div>
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<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'>ab initio calculations; ballistic transport; electronic structure; gallium alloys; interface states; interface structure; magnesium compounds; magnetic multilayers; manganese alloys; perpendicular magnetic anisotropy; tunnelling magnetoresistance; Fermi level; Mn<sub>3</sub>Ga-MgO-Mn<sub>3</sub>Ga; ballistic-transport calculations; first-principles electronic calculations; half-metallic electronic structure; interfacial structures; magnetic tunnel junctions; perpendicular magnetic anisotropy; size 1 nm; spin channels; spin dependent transport properties; tunneling magnetoresistance; Atomic layer deposition; Gallium; Lattices; Magnetic tunneling; Manganese; Tunneling magnetoresistance; Metal-insulator interface; numerical simulation; spin polarized transport; tunneling magnetoresistance (TMR);</div>
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<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>
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<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>
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<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>
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<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>
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<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>
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<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.2013.2276625</div>
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<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'>6692977</div>
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<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=38747' target='_blank'>https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=38747</a></div>
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