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EnglishUsing angle-resolved photoemission, we report the first observation of an incomplete charge-density-wave (CDW) gap opening for the quasi-two-dimensional material Mo4O11. Our data indicate that the gap opening occurs over a range of 0.5 (A)ngstrom(-1) in the Brillouin zone. The maximum gap opening (Delta(max)) we observe is 60 +/- 10 meV, which leads to a ratio of 2 Delta(max)/kT(CDW) = 14 +/- 6 (T-CDW = transition temperature), well above the weak coupling value of 3.5. Our data suggest that both 1-dimensional and 2-dimensional electronic states may be involved in the gap opening. RI Margaritondo, Giorgio/B-1367-2008
http://hdl.handle.net/20.500.11769/12148| Titolo: | Incomplete charge-density-wave gap opening in orthorhombic Mo4O11 |
| Autori interni: | TERRASI, Antonio |
| Data di pubblicazione: | 1996 |
| Rivista: | ZEITSCHRIFT FÜR PHYSIK. B, CONDENSED MATTER |
| Abstract: | Using angle-resolved photoemission, we report the first observation of an incomplete charge-density-wave (CDW) gap opening for the quasi-two-dimensional material Mo4O11. Our data indicate that the gap opening occurs over a range of 0.5 (A)ngstrom(-1) in the Brillouin zone. The maximum gap opening (Delta(max)) we observe is 60 +/- 10 meV, which leads to a ratio of 2 Delta(max)/kT(CDW) = 14 +/- 6 (T-CDW = transition temperature), well above the weak coupling value of 3.5. Our data suggest that both 1-dimensional and 2-dimensional electronic states may be involved in the gap opening. RI Margaritondo, Giorgio/B-1367-2008 |
| Handle: | http://hdl.handle.net/20.500.11769/12148 |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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