Spin selective x-ray absorption spectroscopy: Demonstration using high resolution Fe [ital K][beta] fluorescence

Journal Article · Mon Nov 14 04:00:00 EST 1994 · Applied Physics Letters; (United States)

DOI:https://doi.org/10.1063/1.112625· OSTI ID:6938417

Peng, G; Wang, X; Randall, C R; Moore, J A; Cramer, S P ^[1]

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1. Department of Applied Science, University of California at Davis, Davis, California 95616 (United States) Energy Environment Division, Lawrence Berkeley Laboratory, Berkeley, California 94720 (United States)

In this letter it is shown that high resolution Fe [ital K][beta] excitation spectra can be used to separately probe empty spin-up and spin-down final states. Spin-selective x-ray absorption spectra were obtained by selectively monitoring different regions of the [ital K][beta] emission. The fluorescence was excited with monochromatized synchrotron radiation and analyzed using a spherically bent Ge(620) crystal. Spin--polarization was demonstrated by showing that the 1[ital s][r arrow]3[ital d] transition at the Fe [ital K] edge is seen with [ital K][beta][sub 1,3] detection, but missing in the excitation spectrum using [ital K][beta][prime] detection. The spin--polarization is also confirmed by ligand field atomic multiplet calculations that reproduce the [ital K][beta] spectra. Calculations are presented showing the applicability of spin--polarized [ital K][beta] detection to nearly all first transition metal ions.

• OSTI ID: 6938417
• Journal Information: Applied Physics Letters; (United States), Journal Name: Applied Physics Letters; (United States) Vol. 65:20; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104 -- Metals & Alloys-- Physical Properties
665100* -- Nuclear Techniques in Condensed Matter Physics -- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ABSORPTION SPECTRA
ANGULAR MOMENTUM
BREMSSTRAHLUNG
CHEMICAL ANALYSIS
ELECTROMAGNETIC RADIATION
ELECTRONIC STRUCTURE
ELEMENTS
IRON
MAGNETISM
MAGNETIZATION
METALS
NONDESTRUCTIVE ANALYSIS
PARTICLE PROPERTIES
POLARIZATION
RADIATIONS
SPECTRA
SPECTROSCOPY
SPIN
SYNCHROTRON RADIATION
TRANSITION ELEMENTS
X-RAY EMISSION ANALYSIS
X-RAY FLUORESCENCE ANALYSIS
X-RAY SPECTROSCOPY