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000059158 084__ $$2WoS$$aPhysics, Applied
000059158 1001_ $$0P:(DE-HGF)0$$aÖzdogan, K.$$b0
000059158 245__ $$aInfluence of mixing the low-valent transition metal atoms (Y, Y*=Cr, Mn, Fe) on the properties of the quaternary Co-2[Y1-xYx*]Z (Z=Al, Ga, Si, Ge, or Sn) Heusler compounds
000059158 260__ $$aMelville, NY$$bAmerican Institute of Physics$$c2007
000059158 300__ $$a073910
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000059158 440_0 $$03051$$aJournal of Applied Physics$$v101$$x0021-8979
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000059158 520__ $$aWe complement our study on the doping and disorder in Co(2)MnZ compounds [I. Galanakis, K. Ozdogan, B. Aktas, and E. Sasioglu, Appl. Phys. Lett. 89, 042502 (2006) and K. Ozdogan, E. Sasioglu, B. Aktas, and I. Galanakis, Phys. Rev. B 74, 172412 (2006)] to cover also the quaternary Co-2[Y1-xYx*]Z compounds with the lower-valent transition metals Y, Y-* being Cr, Mn, or Fe and the sp atom Z being one of Al, Ga, Si, Ge, and Sn. This study gives a global overview of the magnetic and electronic properties of these compounds since we vary both Y and Z elements. Our results suggest that for realistic applications the most appropriate compounds are the ones belonging to the families Co-2[Mn1-xCrx]Z with x > 0.5 irrespectively of the nature of the sp atoms since they combine high values of majority density of states at the Fermi level due to the presence of Cr, and half-metallicity with large band gaps. On the other hand, the presence of Fe considerably lowers the majority density of states at the Fermi level and when combined with an element belonging to the Si column, it can even destroy half-metallicity. (c) 2007 American Institute of Physics.
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000059158 7001_ $$0P:(DE-HGF)0$$aAktas, B.$$b1
000059158 7001_ $$0P:(DE-HGF)0$$aGalanakis, I.$$b2
000059158 7001_ $$0P:(DE-Juel1)VDB63896$$aSasioglu, E.$$b3$$uFZJ
000059158 773__ $$0PERI:(DE-600)1476463-5$$a10.1063/1.2714502$$gVol. 101, p. 073910$$p073910$$q101<073910$$tJournal of applied physics$$v101$$x0021-8979$$y2007
000059158 8567_ $$uhttp://dx.doi.org/10.1063/1.2714502
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