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Searching for hexagonal analogues of the half-metallic half-Heusler XYZ compounds
Frederick Casper, Claudia Felser, Ram Seshadri +2
The XYZ half-Heusler crystal structure can conveniently be described as a tetrahedral zinc blende YZ structure which is stuffed by a slightly ionic X species. This description is w…
Variation of the bonding interactions and magnetism in GdAuX (X = Mg, Cd, and In)
Hem Chandra Kandpal, Frederick Casper, Gerhard H. Fecher +3
Results of first-principles electronic structure calculations for the isotypic compounds GdAuX (ZrNiAl type, X = Mg, Cd, and In) are presented. We report on a systematic examinatio…
Giant magnetoresistance and extraordinary magnetoresistance in inhomogeneous semiconducting DyNiBi
Frederick Casper, Claudia Felser
The semiconducting half-Heulser compound DyNiBi shows a negative giant magnetoresistance (GMR) below 200 K. Except for a weak deviation, this magnetoresistance scales roughly with…
Crystal structure, magnetism, and bonding of the hexagonal compounds PdMnSi and PdMnGe related to the FeP structure
Srinivasa Thimmaiah, Claudia Felser, Ram Seshadri
We have used single crystal X-ray diffraction methods to establish the crystal structures of a compound in the Pd-Mn-Si system and in the Pd-Mn-Ge system. The title compounds have…