Ab initioprediction of ferrimagnetism, exchange interactions and Curie temperatures in Mn2TiZ Heusler compounds
نویسندگان
چکیده
منابع مشابه
0 Ab - initio calculations of exchange interactions , spin - wave stiffness constants , and Curie temperatures of Fe , Co , and
We have calculated Heisenberg exchange parameters for bcc-Fe, fcc-Co, and fcc-Ni using the scalar-relativistic spin-polarized Green function technique within the tight-binding linear muffin-tin orbital method and by employing the magnetic force theorem to calculate total energy changes associated with a local rotation of magnetization directions. We have also determined spin-wave stiffness cons...
متن کاملFerrimagnetism and antiferromagnetism in half-metallic Heusler alloys
Iosif Galanakis∗1, Kemal Özdoğan2, Ersoy Şaşıoğlu3,4, and Bekir Aktaş2 1 Department of Materials Science, University of Patras, GR-26504 Patra, Greece 2 Department of Physics, Gebze Institute of Technology, Gebze, 41400, Kocaeli, Turkey 3 Institut für Festkörperforschung, Forschungszentrum Jülich, D-52425 Jülich, Germany 4 Fatih University, Physics Department, 34500, Büyükçekmece, İstanbul, Turkey
متن کاملTheory of Heusler and Full-Heusler compounds
Spintronics/magnetoelectronics brought at the center of scientific research the Heusler and full-Heusler compounds, since several among them have been shown to be half-metals. In this review we present a study of the basic electronic and magnetic properties of both Heusler families; the so-called semi-Heusler alloys like NiMnSb and the full-Heusler alloys like Co2MnGe (usual full-Heuslers), Mn2...
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15 صفحه اولCurie and Néel temperatures of quantum magnets
We estimate, using high-temperature series expansions, the transition temperatures of the spin 2 , 1 and 3 2 Heisenberg ferromagnet and antiferromagnet in three dimensions. The manner in which the difference between Curie and Néel temperatures vanishes with increasing spin quantum number is investigated. It is well known that in classical spin models, such as the Ising and classical Heisenberg ...
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ژورنال
عنوان ژورنال: Journal of Physics: Condensed Matter
سال: 2010
ISSN: 0953-8984,1361-648X
DOI: 10.1088/0953-8984/23/3/036001