EnglishWe have investigated the Ti d-electronic states of stoichiometric TiSe2 for k-vectors in the neighborhood of the L-point at temperatures above and below the critical temperature using angle-resolved photoemission. Strong changes observed in the spectra upon lowering the temperature definitely demostrate that the lattice-instability phase transition involves Ti d-electrons as required by an excitonic-insulator mechanism. The hypothesis that TiSe2 at low temperatures is the first and only known example of an exitonic insulator, therefore, remains plausible after this crucial test.
DIRECT EVIDENCE FOR D-BAND INVOLVEMENT IN THE TISE2 PHASE-TRANSITION / N. G., Stoffel; F., Levy; Bertoni, Carlo Maria; G., Margaritondo. - In: SOLID STATE COMMUNICATIONS. - ISSN 0038-1098. - STAMPA. - 41(1982), pp. 53-56.
| Data di pubblicazione: | 1982 |
| Titolo: | DIRECT EVIDENCE FOR D-BAND INVOLVEMENT IN THE TISE2 PHASE-TRANSITION |
| Autore/i: | N. G., Stoffel; F., Levy; Bertoni, Carlo Maria; G., Margaritondo |
| Autore/i UNIMORE: | |
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1016/0038-1098(82)90248-4 |
| Rivista: | |
| Volume: | 41 |
| Pagina iniziale: | 53 |
| Pagina finale: | 56 |
| Codice identificativo ISI: | WOS:A1982MW89800012 |
| Codice identificativo Scopus: | 2-s2.0-0019931018 |
| Citazione: | DIRECT EVIDENCE FOR D-BAND INVOLVEMENT IN THE TISE2 PHASE-TRANSITION / N. G., Stoffel; F., Levy; Bertoni, Carlo Maria; G., Margaritondo. - In: SOLID STATE COMMUNICATIONS. - ISSN 0038-1098. - STAMPA. - 41(1982), pp. 53-56. |
| Tipologia | Articolo su rivista |
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