Bulletin of the American Physical Society
APS March Meeting 2010
Volume 55, Number 2
Monday–Friday, March 15–19, 2010; Portland, Oregon
Session H15: Metals: Compounds, Magnetism
8:00 AM–10:36 AM,
Tuesday, March 16, 2010
Sponsoring Unit: DCMP
Chair: J. von Pezold, Max-Planck Institut fur Eisenforschung
Abstract ID: BAPS.2010.MAR.H15.10
Abstract: H15.00010 : Local moments and hyperfine magnetic fields in rare-earth intermetallics XRu$_2$*
9:48 AM–10:00 AM
Preview Abstract Abstract
(Dept.of Physics, Buffalo State College, NY)
Electronic properties of a series of ferromagnetically ordered rare earth intermetallics, XRu$_2$, are investigated using first principles density functional calculations. The $f$-moment localized on the rare-earth site is found to be determined by the location of the Fermi level as it moves through the majority band for the lighter members of the series and then through the minority band for the heavier members. The interaction between the local moments is mediated by polarized conduction bands derived from the 4$d$ Ru electrons. The size of the hyperfine magnetic fields on the rare-earth sites is correlated with the size of $f$-moments. In contrast there are almost no moments and very small transferred hyperfine magnetic fields on the Ru sites because their 4$d$-electrons are delocalized.
*The work was supported by the USDOE(DE-FG02-03ER46064).
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2010.MAR.H15.10
The American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics.
1 Physics Ellipse, College Park, MD 20740-3844
Editorial Office 1 Research Road, Ridge, NY 11961-2701 (631) 591-4000
Office of Public Affairs 529 14th St NW, Suite 1050, Washington, D.C. 20045-2001 (202) 662-8700