The magnetic and chemical ordering of the heusler alloys Pd₂MnIn, Pd₂MnSn and Pd₂MnSb

Photoelectron spectroscopy of manganese-based Heusler alloys

“…Photoemission measurements in the region of the Mn 3 p threshold indicate that Mn 3d character extends across the full width of the valence band for all three alloys. For Pd 2 MnSn, additional photoemission measurements in the region of the Pd 4d Cooper minimum confirm this conclusion. Modulations in photocurrent resulting from Mn 3p-to-3d resonances across the valence band of Co 2 MnSn are most intense towards the bottom of the band.…”

“…For Pd 2 MnSn, additional photoemission measurements in the region of the Pd 4d Cooper minimum confirm this conclusion. Modulations in photocurrent resulting from Mn 3p-to-3d resonances across the valence band of Co 2 MnSn are most intense towards the bottom of the band. This is discussed in terms of possible variations in initial-state hybridization.…”

“…[1][2][3] These alloys possess the characteristic L2 1 crystal structure, comprising four interpenetrating face-centered-cubic sublattices: two occupied by atoms of element X, one occupied by Mn atoms, and one occupied by Y atoms. The element X is usually a first-row transition or noble metal such as Co, Ni, Cu, Pd, or Pt.…”

“…Although there is a wide and expanding group of intermetallic compounds classified as Heusler alloys, [1][2][3][4][5][6][7] the archetypal alloys are those with the general formula X 2 MnY . [1][2][3] These alloys possess the characteristic L2 1 crystal structure, comprising four interpenetrating face-centered-cubic sublattices: two occupied by atoms of element X, one occupied by Mn atoms, and one occupied by Y atoms.…”

On Cl<SUB>b</SUB> Type Alloys in the Rh&ndash;Mn&ndash;Sb System

“…For Heusler(L21)-type alloys in which the atomic proportion of the first element, e.g. Cu and Pd, is greater than the equi-atomic composition, there have been reports on Cu2MnX (X= Al, In, Sn or Ga) compounds (7) and Pd2MnX(X= Al, In, Sn or Sb) compounds (8) have been reported. These Clb and L21 type compounds are considered to provide very useful information on the origin of their magnetic properties which may be elucidated in terms of the coordination number of atoms adjacent to Mn atoms, the kind of the neighboring atoms and the inter-atomic distance of Mn-Mn.…”