DPG Phi
Verhandlungen
Verhandlungen
DPG

Berlin 2015 – scientific programme

Parts | Days | Selection | Search | Updates | Downloads | Help

TT: Fachverband Tiefe Temperaturen

TT 114: Transport: Molecular Electronics (jointly with CPP, HL, MA, O)

TT 114.2: Talk

Friday, March 20, 2015, 09:45–10:00, H 0110

Conductance and thermopower of C82 and endohedral metallofullerene molecular junctions with Au electrodes — •Marius Buerkle1, See Kei Lee2, Ryo Yamada2, Hirokazu Tada2, and Yoshihiro Asai11AIST, NRI, Tsukuba, Japan — 2Graduate School of Engineering Science, Osaka University, Japan

By combining STM based conductance and thermopower measurements with first-principle transport calculations we investigate the thermoelectric properties of single C82 molecules, and its endohedral metallofullerene (EMF) derivatives Gd@C82 and Ce@C82 bridging Au electrodes. All three molecular junctions show a comparable conductance of around 0.2 G0 and a negative thermopower indicating electron-like transport through the lowest unoccupied molecular orbital (LUMO). However, for the EMF junctions a much larger thermopower is observed which we can relate to changes in the electronic structure induced by the lanthanide atoms.

100% | Mobile Layout | Deutsche Version | Contact/Imprint/Privacy
DPG-Physik > DPG-Verhandlungen > 2015 > Berlin