Mobile small polarons and the Peierls transition in the quasi-one-dimensional conductor K0.3MoO3

High-resolution angle-resolved photoemission spectroscopy (ARPES) on the quasi-one-dimensional Peierls system K0.3MoO3 reveals a "hidden" open Fermi surface and band features displaying the symmetry properties of the underlying lattice. However, the ARPES line shapes and optical data suggest that the corresponding quasiparticles are heavily renormalized by strong electron-phonon interactions. The temperature dependence of the leading edge of the mostly incoherent spectrum bears signatures of the Peierls transition at T-P=180 K and of pretransitional fluctuations.


Published in:
Physical Review B, 66, 7, 075107
Year:
2002
ISSN:
1098-0121
Keywords:
Note:
Ecole Polytech Fed Lausanne, Inst Phys Nanostruct, CH-1015 Lausanne, Switzerland. Ecole Polytech Fed Lausanne, Inst Phys Mat Complexe, CH-1015 Lausanne, Switzerland. Swiss Fed Inst Technol, Festkorperphys Lab, CH-8093 Zurich, Switzerland. Univ Wisconsin, Ctr Synchrotron Radiat, Stoughton, WI 53589 USA. Perfetti, L, Ecole Polytech Fed Lausanne, Inst Phys Nanostruct, CH-1015 Lausanne, Switzerland.
ISI Document Delivery No.: 593AV
075107
Other identifiers:
Laboratories:




 Record created 2006-10-03, last modified 2018-03-18


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