by Ilakovac, V., Brookes, N. B., Cezar, J. Criginski, Thakur, P., Bisogni, V., Dallera, C., Ghiringhelli, G., Braicovich, L., Bernu, S., Berger, H., Forro, L., Akrap, A. and Hague, C. F.
Abstract:
Polarization dependent vanadium L edge x-ray absorption spectra of BaVS3 single crystals are measured in the four phases of the compound. The difference between signals with the polarizations E perpendicular to c and E parallel to c ( linear dichroism) changes with temperature. Besides increasing the intensity of one of the maxima, a new structure appears in the pre-edge region below the metal-insulator transition. More careful examination brings to light that the changes start already with pretransitional charge density wave fluctuations. Simple symmetry analysis suggests that the effect is related to rearrangements in the E-g and A(1g) states, and is compatible with the formation of four inequivalent V-sites along the V-S chain.
Reference:
BaVS3 probed by V L edge x-ray absorption spectroscopy (Ilakovac, V., Brookes, N. B., Cezar, J. Criginski, Thakur, P., Bisogni, V., Dallera, C., Ghiringhelli, G., Braicovich, L., Bernu, S., Berger, H., Forro, L., Akrap, A. and Hague, C. F.), In JOURNAL OF PHYSICS-CONDENSED MATTER, IOP PUBLISHING LTD, volume 24, 2012.
Bibtex Entry:
@article{ ISI:000299326100012, Author = {Ilakovac, V. and Brookes, N. B. and Cezar, J. Criginski and Thakur, P. and Bisogni, V. and Dallera, C. and Ghiringhelli, G. and Braicovich, L. and Bernu, S. and Berger, H. and Forro, L. and Akrap, A. and Hague, C. F.}, Title = {{BaVS3 probed by V L edge x-ray absorption spectroscopy}}, Journal = {{JOURNAL OF PHYSICS-CONDENSED MATTER}}, Year = {{2012}}, Volume = {{24}}, Number = {{4}}, Month = {{FEB 1}}, Abstract = {{Polarization dependent vanadium L edge x-ray absorption spectra of BaVS3 single crystals are measured in the four phases of the compound. The difference between signals with the polarizations E perpendicular to c and E parallel to c ( linear dichroism) changes with temperature. Besides increasing the intensity of one of the maxima, a new structure appears in the pre-edge region below the metal-insulator transition. More careful examination brings to light that the changes start already with pretransitional charge density wave fluctuations. Simple symmetry analysis suggests that the effect is related to rearrangements in the E-g and A(1g) states, and is compatible with the formation of four inequivalent V-sites along the V-S chain.}}, Publisher = {{IOP PUBLISHING LTD}}, Address = {{TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND}}, Type = {{Article}}, Language = {{English}}, Affiliation = {{Ilakovac, V (Corresponding Author), Univ Paris 06, CNRS UMR 7614, LCP MR, F-75231 Paris, France. Ilakovac, V.; Hague, C. F., Univ Paris 06, CNRS UMR 7614, LCP MR, F-75231 Paris, France. Ilakovac, V., Univ Cergy Pontoise, F-95031 Cergy Pontoise, France. Brookes, N. B.; Cezar, J. Criginski; Thakur, P.; Bisogni, V., ESRF, F-38043 Grenoble, France. Dallera, C.; Ghiringhelli, G.; Braicovich, L., Politecn Milan, I-20133 Milan, Italy. Bernu, S., Univ Paris 11, Phys Solides Lab, CNRS UMR 8502, F-91405 Orsay, France. Berger, H.; Forro, L.; Akrap, A., Ecole Polytech Fed Lausanne, CH-1015 Lausanne, Switzerland.}}, DOI = {{10.1088/0953-8984/24/4/045503}}, Article-Number = {{045503}}, ISSN = {{0953-8984}}, Keywords-Plus = {{ELECTRONIC-STRUCTURE; SPIN; PHASE; TRANSITION; SCATTERING; CRYSTAL; STATE}}, Research-Areas = {{Physics}}, Web-of-Science-Categories = {{Physics, Condensed Matter}}, Author-Email = {{vita.ilakovac-casses@upmc.fr}}, ResearcherID-Numbers = {{Ghiringhelli, Giacomo/D-1159-2014 Cezar, Julio Criginski/D-5039-2012 Thakur, Pardeep Kumar/A-8328-2012 Akrap, Ana/G-1409-2013 Brookes, Nicholas B/C-6718-2019 }}, ORCID-Numbers = {{Ghiringhelli, Giacomo/0000-0003-0867-7748 Cezar, Julio Criginski/0000-0002-7904-6874 Thakur, Pardeep Kumar/0000-0002-9599-0531 Akrap, Ana/0000-0003-4493-5273 Brookes, Nicholas B/0000-0002-1342-9530 Braicovich, Lucio/0000-0001-6548-9140}}, Funding-Acknowledgement = {{Swiss National Science FoundationSwiss National Science Foundation (SNSF); NCCR `MaNEP'Swiss National Science Foundation (SNSF)}}, Funding-Text = {{Fruitful discussions with P Foury, J-P Pouget, S Tomic, F Lechermann, S Barisic, I Kupcic, M Grioni, P Bencok, M-A Arrio, P Sainctavit and Y Joly are gratefully acknowledged. The work in Lausanne was supported by the Swiss National Science Foundation and its NCCR `MaNEP'.}}, Number-of-Cited-References = {{23}}, Times-Cited = {{3}}, Usage-Count-Last-180-days = {{1}}, Usage-Count-Since-2013 = {{22}}, Journal-ISO = {{J. Phys.-Condes. Matter}}, Doc-Delivery-Number = {{879JS}}, Unique-ID = {{ISI:000299326100012}}, DA = {{2020-12-22}}, }
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