by CHIAIA, G, VAVASSORI, P, DUO, L, BRAICOVICH, L, QVARFORD, M and LINDAU, I
Abstract:
The 4f surface versus bulk electronic structure of three strongly hybridized Ce intermetallic compounds (CeCo2, CeRh2 and CeRh3) is investigated by exploiting the 4f photoemission resonant enhancement at the Ce 3d-4f and Ce 4d-4f thresholds. The much higher surface sensitivity at the shallow 4d threshold allows to extract the surface and bulk 4f electronic structure. Our results show a decreasing of the hybridization strength at the surface as compared to the bulk. The analysis of the whole set of results highlights the effect on the 4f spectral function obtained by varying the Ce metallic partner in the same crystal structure (CeCo2 versus CeRh2) and by changing the stoichiometry in the Ce-Rh phase diagram (CeRh2 versus CeRh3).
Reference:
SURFACE ELECTRONIC-STRUCTURE OF CECO2, CERH2 AND CERH3 PROBED BY VALENCE-BAND RESONANT PHOTOEMISSION SPECTROSCOPY (CHIAIA, G, VAVASSORI, P, DUO, L, BRAICOVICH, L, QVARFORD, M and LINDAU, I), In SURFACE SCIENCE, ELSEVIER SCIENCE BV, volume 331, 1995.
Bibtex Entry:
@article{ ISI:A1995RK79900065, Author = {CHIAIA, G and VAVASSORI, P and DUO, L and BRAICOVICH, L and QVARFORD, M and LINDAU, I}, Title = {{SURFACE ELECTRONIC-STRUCTURE OF CECO2, CERH2 AND CERH3 PROBED BY VALENCE-BAND RESONANT PHOTOEMISSION SPECTROSCOPY}}, Journal = {{SURFACE SCIENCE}}, Year = {{1995}}, Volume = {{331}}, Number = {{B}}, Pages = {{1229-1232}}, Month = {{JUL 1}}, Note = {{14th European Conference on Surface Science (ECOSS-14), UNIV LEIPZIG, LEIPZIG, GERMANY, SEP 19-23, 1994}}, Organization = {{Deut Forschungsgemeinsch; European Community, Human Capital & Mobil Program; Wilhelm & Else Heraeus Stift; Sachsisches Staatsminist Wissensch & Kunst}}, Abstract = {{The 4f surface versus bulk electronic structure of three strongly hybridized Ce intermetallic compounds (CeCo2, CeRh2 and CeRh3) is investigated by exploiting the 4f photoemission resonant enhancement at the Ce 3d-4f and Ce 4d-4f thresholds. The much higher surface sensitivity at the shallow 4d threshold allows to extract the surface and bulk 4f electronic structure. Our results show a decreasing of the hybridization strength at the surface as compared to the bulk. The analysis of the whole set of results highlights the effect on the 4f spectral function obtained by varying the Ce metallic partner in the same crystal structure (CeCo2 versus CeRh2) and by changing the stoichiometry in the Ce-Rh phase diagram (CeRh2 versus CeRh3).}}, Publisher = {{ELSEVIER SCIENCE BV}}, Address = {{PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS}}, Type = {{Article; Proceedings Paper}}, Language = {{English}}, Affiliation = {{POLITECN MILAN, DIPARTIMENTO FIS, I-20133 MILAN, ITALY. LUND UNIV, DEPT SYNCHROTRON RADIAT RES, S-22362 LUND, SWEDEN.}}, DOI = {{10.1016/0039-6028(95)00273-1}}, ISSN = {{0039-6028}}, Keywords = {{CERIUM; COBALT; POLYCRYSTALLINE SURFACES; RHODIUM; SOFT X-RAY PHOTOELECTRON SPECTROSCOPY; SURFACE ELECTRONIC PHENOMENA}}, Keywords-Plus = {{CE}}, Research-Areas = {{Chemistry; Physics}}, Web-of-Science-Categories = {{Chemistry, Physical; Physics, Condensed Matter}}, ResearcherID-Numbers = {{Vavassori, Paolo/B-4299-2014 Duo, Lamberto/N-9311-2014 }}, ORCID-Numbers = {{Vavassori, Paolo/0000-0002-4735-6640 Braicovich, Lucio/0000-0001-6548-9140}}, Number-of-Cited-References = {{19}}, Times-Cited = {{16}}, Usage-Count-Last-180-days = {{0}}, Usage-Count-Since-2013 = {{5}}, Journal-ISO = {{Surf. Sci.}}, Doc-Delivery-Number = {{RK799}}, Unique-ID = {{ISI:A1995RK79900065}}, DA = {{2020-12-22}}, }
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