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X-ray natural circular dichroism in langasite crystal.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Oreshko, Alexey P. Ovchinnikova, E. N. Rogalev, Andrei Wilhelm, Fabrice Mill, Boris V. Dmitrienko, Vladimir E. |
| Copyright Year | 2018 |
| Abstract | Optical activity in the X-ray range stems from the electric-dipole-electric-quadrupole interference terms mixing multipoles of opposite parity, and can be observed exclusively in systems with broken inversion symmetry. The gyration tensor formalism is used to describe the X-ray optical activity in langasite La3Ga5SiO14 crystal with the P321 space group. An experimental study of the X-ray natural circular dichroism (XNCD) near the Ga K-edge in La3Ga5SiO14 single crystal was performed at ESRF beamline ID12, both along and perpendicular to the crystal optical axis. The combination of the quantum mechanical calculations and high-quality experimental results has allowed us to separate the contributions into X-ray absorption and XNCD spectra of Ga atoms occupying three distinct Wyckoff positions. |
| Starting Page | 222 |
| Ending Page | 231 |
| Page Count | 10 |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://journals.iucr.org/s/issues/2018/01/00/fv5074/fv5074.pdf |
| PubMed reference number | 29271771v1 |
| Alternate Webpage(s) | https://doi.org/10.1107/S1600577517015387 |
| DOI | 10.1107/s1600577517015387 |
| Journal | Journal of synchrotron radiation |
| Volume Number | 25 |
| Part | 1 |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Ataxia with vitamin E deficiency Axis vertebra Circular Dichroism Diagnostic radiologic examination Gallium Genus Axis La3Ga5SiO14 Maxillary right third molar abutment Optical Rotation Optics Pseudo brand of pseudoephedrine Quadrupole Science Views:Finding:Point in time:To be specified in another part of the message:Narrative:XR |
| Content Type | Text |
| Resource Type | Article |
