Spin-polarized electron momentuin density distributions REMn2Ge2 (RE = Gd, La)
UNSPECIFIED (2002) Spin-polarized electron momentuin density distributions REMn2Ge2 (RE = Gd, La). In: 6th Patras-University Euroconference on Properties of Condensed Matter Probed with X-Ray Scattering-Electron Correlations and Magnetism, SEP 21-25, 2001, PATRAS UNIV, PATRAS, GREECE.Full text not available from this repository.
The spin-polarized electron momentum distributions (EMD) for ferrimagnetic GdMn2Ge2 and ferromagnetic LaMn2Ge2 have been measured using the magnetic Compton scattering technique. The spin-polarized EMDs were resolved along the c-axis at 15 K. In the Gd sample, the Gd and Mn spin sublattices are aligned antiparallel with spin moments of 6.8+/-0.1 mu(B) per formula unit (FU-1) and 3.7+/-0.1 mu(B) FU-1, respectively, with the Gd spin sublattice oriented parallel to the scattering vector. The ferromagnetic La system exhibits no 4f moment and the Mn moment is aligned parallel to the scattering vector, the ordered spin moment on the Mn being 2.4 +/- 0.1 mu(B) FU-1. The two samples measured are the extreme points of the phase diagram for Gd1-xLaxMn2Ge2. Our data give a direct indication of the sublattice reorientation at x approximate to 0.5, implied from previous magnetization measurements and indicate that at a low temperature the Mn sublattice is a canted ferromagnetic system. (C) 2002 Elsevier Science B.V. All rights reserved.
|Item Type:||Conference Item (UNSPECIFIED)|
|Subjects:||Q Science > QC Physics|
|Journal or Publication Title:||PHYSICA B-CONDENSED MATTER|
|Publisher:||ELSEVIER SCIENCE BV|
|Number of Pages:||5|
|Page Range:||pp. 267-271|
|Title of Event:||6th Patras-University Euroconference on Properties of Condensed Matter Probed with X-Ray Scattering-Electron Correlations and Magnetism|
|Location of Event:||PATRAS UNIV, PATRAS, GREECE|
|Date(s) of Event:||SEP 21-25, 2001|
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