Band structure calculations of Ti2FeSn: A new half-metallic compound

作者: A. Birsan , P. Palade

DOI: 10.1016/J.INTERMET.2013.01.005

关键词: Electronic structureLattice constantDensity functional theoryBand gapParamagnetismFerromagnetismAntiferromagnetismElectronic band structureMaterials scienceCondensed matter physics

摘要: Abstract Within the framework of density functional theory, electronic structure and magnetic properties have been studied for Ti2FeSn full-Heusler compound. The ferromagnetic state is found to be energetically more favorable than paramagnetic antiferromagnetic states. spin-polarized results show that compound has half-metallic character with a total spin moment 2μB band gap in minority channel 0.489 eV, at equilibrium lattice constant a = 6.342 Ǻ.

参考文章(21)
A. Birsan, P. Palade, V. Kuncser, Half-metallic state and magnetic properties versus the lattice constant in Ti2CoSn Heusler compound: An ab initio study Solid State Communications. ,vol. 152, pp. 2147- 2150 ,(2012) , 10.1016/J.SSC.2012.09.013
Nan Zheng, Yingjiu Jin, Band-gap and Slater–Pauling rule in half-metallic Ti2-based Heusler alloys: A first-principles study Journal of Magnetism and Magnetic Materials. ,vol. 324, pp. 3099- 3104 ,(2012) , 10.1016/J.JMMM.2012.05.009
The Crystal Structure of the Heusler Alloys Proceedings of The Royal Society A: Mathematical, Physical and Engineering Sciences. ,vol. 144, pp. 340- 359 ,(1934) , 10.1098/RSPA.1934.0053
Selçuk Kervan, Nazmiye Kervan, Half-metallic ferrimagnetism in the full-Heusler compound Co2ScSb Intermetallics. ,vol. 19, pp. 1642- 1645 ,(2011) , 10.1016/J.INTERMET.2011.07.004
Maria Pugaczowa-Michalska, Theoretical prediction of ferrimagnetism in Mn2FeB, Mn2CoB and Mn2NiB Intermetallics. ,vol. 24, pp. 128- 134 ,(2012) , 10.1016/J.INTERMET.2012.01.004
Nazmiye Kervan, Selçuk Kervan, Half-metallic properties of Ti2FeSi full-Heusler compound Journal of Physics and Chemistry of Solids. ,vol. 72, pp. 1358- 1361 ,(2011) , 10.1016/J.JPCS.2011.08.017
John P. Perdew, Kieron Burke, Matthias Ernzerhof, Generalized Gradient Approximation Made Simple Physical Review Letters. ,vol. 77, pp. 3865- 3868 ,(1996) , 10.1103/PHYSREVLETT.77.3865
Peter E. Blöchl, O. Jepsen, O. K. Andersen, Improved tetrahedron method for Brillouin-zone integrations Physical Review B. ,vol. 49, pp. 16223- 16233 ,(1994) , 10.1103/PHYSREVB.49.16223
Selçuk Kervan, Nazmiye Kervan, Spintronic properties of the Ti2CoB Heusler compound by density functional theory Solid State Communications. ,vol. 151, pp. 1162- 1164 ,(2011) , 10.1016/J.SSC.2011.05.008
Tanja Graf, Claudia Felser, Stuart S.P. Parkin, Simple rules for the understanding of Heusler compounds Progress in Solid State Chemistry. ,vol. 39, pp. 1- 50 ,(2011) , 10.1016/J.PROGSOLIDSTCHEM.2011.02.001