Temperature dependent orbital degree of freedom in a bilayer manganite by magnetic Compton scattering

Simple item page
dc.creatorLi, Yinwan
dc.creatorMontano, P. A.
dc.creatorMitchell, J. F.
dc.creatorBarbiellini, B.
dc.creatorMijnarends, P. E.
dc.creatorKaprzyk, S.
dc.creatorBansil, A.
dc.date2004-10-21
dc.date.accessioned2026-07-07T08:35:34Z
dc.date.available2026-07-07T08:35:34Z
dc.descriptionWe have measured temperature-dependent magnetic Compton profiles (MCPs) from a single crystal of La$_{1.2}$Sr$_{1.8}$Mn$_2$O$_7$. The MCPs, which involved the scattering of circularly polarized x-rays, are in general related to the momentum density of all the unpaired spins in the system. Nevertheless, we show that when the x-ray scattering vector lies along the [110] direction, the number of magnetic electrons of a specific symmetry, i.e. $d$-electrons of $x^2-y^2$ symmetry, yield a distinct signature in the MCP, allowing us to monitor substantial changes in the occupancy of the $d_{x^2-y^2}$ states over the investigated temperature range of 5-200K. This study indicates that magnetic Compton scattering can provide a powerful window on the properties of specific magnetic electrons in complex materials.
dc.description5 pages, 4 figures, to appear in Phys. Rev. Lett
dc.identifierhttps://arxiv.org/abs/cond-mat/0410553
dc.identifierhttp://arxiv.org/abs/cond-mat/0410553
dc.identifierPhys. Rev. Lett. 93, 207206 (2004)
dc.identifierdoi:10.1103/PhysRevLett.93.207206
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/139786
dc.subjectStrongly Correlated Electrons
dc.subjectMaterials Science
dc.titleTemperature dependent orbital degree of freedom in a bilayer manganite by magnetic Compton scattering
dc.typetext

Files

Collections

arXiv