Ferromagnetism in Mn doped half-Heusler NiTiSn: Theory and experiment
2006 (English)In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 89, no 21, 212502- p.Article in journal (Refereed) Published
In this letter, the authors show by ab initio density functional calculations and experiments that Mn doped semiconducting half-Heusler compound NiTiSn can exhibit room-temperature ferromagnetism. Curie temperatures were calculated by Monte Carlo simulations using calculated Heisenberg exchange parameters in an ab initio Green's function approach. The calculated temperature exceeds room temperature for a Mn doping concentration of 22%. Magnetic measurements confirm the presence of possible intrinsic ferromagnetism in these systems. This brings up the possibility of considering this system as a potential candidate for use in room-temperature spintronic devices.
Place, publisher, year, edition, pages
2006. Vol. 89, no 21, 212502- p.
Magnetism, diluted magnetic semiconductor, Curie temperature, SQUID
Condensed Matter Physics Engineering and Technology
IdentifiersURN: urn:nbn:se:uu:diva-20291DOI: 10.1063/1.2393166ISI: 000242220000049OAI: oai:DiVA.org:uu-20291DiVA: diva2:48064