Gradual metal-insulator transition in extended pressure region in doped fullerenes (CROSBI ID 496605)
Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija
Podaci o odgovornosti
Garaj, Slaven ; Sienkiewicz, Andrzej ; Bilušić, Ante ; Barišić, Neven ; Forro, Laszlo
engleski
Gradual metal-insulator transition in extended pressure region in doped fullerenes
Due to competition between strong electron-electron and electron-phonon interaction, the electron-doped fullerenes are close to metal-insulator transition and exhibit an unmatched variety of physical properties. To investigate the nature of the metal-insulator transition, we employed high pressures in transport and electron spin resonance (ESR) measurements. We found that the transition between the molecular (insulting) and delocalized (metallic) behavior is gradual, with a broad pressure region where both molecular and quasiparticle excitations coexist. We analyze this behavior within the recently proposed Mott-Jahn-Teller framework, and discuss fundamental connection to high superconducting transition temperature in fullerenes.
electron-doped fullerenes; metal-insulator transition
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Podaci o prilogu
1071-1071-x.
2004.
objavljeno
Podaci o matičnoj publikaciji
Bulletin of the American Physical Society
Baudrau, Donna M.
Montréal: American Physical Society
Podaci o skupu
Annual APS March Meeting 2004
predavanje
22.03.2004-26.03.2004
Montréal, Kanada