X-ray natural circular dichroism in copper metaborate

Journal Article · Fri Jul 15 00:00:00 EDT 2016 · Journal of Experimental and Theoretical Physics

DOI:https://doi.org/10.1134/S1063776116050186· OSTI ID:22617233

Ovchinnikova, E. N. ^[1]; Rogalev, A.; Wilhelm, F. ^[2]; Kozlovskaya, K. A.; Dmitrienko, V. E. ^[3]

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1. Moscow State University (Russian Federation)
2. European Synchrotron Radiation Facility (France)
3. Russian Academy of Sciences, Shubnikov Institute of Crystallography (Russian Federation)

The local electronic structure of copper ions in a copper metaborate CuB{sub 2}O{sub 4} crystal is studied on the ESRF synchrotron using X-ray absorption polarization-dependent spectroscopy. The X-ray natural circular dichroism near the K absorption edge of copper is measured in the direction that is perpendicular to crystal axis c. The data obtained indicate the presence of hybridized p–d electronic states of copper. Theoretical calculations are used to separate the contributions of the two crystallographically nonequivalent positions of copper atoms in the unit cell of CuB{sub 2}O{sub 4} to the absorption and X-ray circular dichroism spectra of the crystal.

• OSTI ID: 22617233
• Journal Information: Journal of Experimental and Theoretical Physics, Vol. 123, Issue 1; Other Information: Copyright (c) 2016 Pleiades Publishing, Inc.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7761
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BORATES
COMPUTERIZED SIMULATION
COPPER COMPOUNDS
COPPER IONS
CRYSTALS
DICHROISM
ELECTRONIC STRUCTURE
EUROPEAN SYNCHROTRON RADIATION FACILITY
K ABSORPTION
POLARIZATION
SPECTRA
SPECTROSCOPY
SYNCHROTRON RADIATION
X RADIATION