Emergent Relativistic Effects in Condensed Matter
From Fundamental Aspects to Electronic Functionality
From Fundamental Aspects to Electronic Functionality
Nano Letters
Polymethine and polyene molecular wires of sufficient length host effects of topology - solitons. In this work, we perform STM-based break-junction measurements on a series of relatively short wires with increasing length N. We demonstrate that chains with N-odd exhibit a substantially smaller decay in conductance with length (attenuation factor β = 0.04 Å–1) compared to N-even (β ≈ 0.2 Å–1). Furthermore, by changing solvent we can shift β, demonstrating a remarkable negative β value. Our findings may enable the design of molecular wires without a length-dependent decay for efficient electron transport at the nanoscale.
SFB 1277
Doris Meier
Universität Regensburg
Phone: +49 (0) 941-943 2264
Email: SFB1277.Office@ur.de
