Light induced negative differential conductance in molecular junctions: Role of triplet states and electron-phonon interaction

Interaction-induced negative differential resistance in asymmetric molecular junctions.

Combining insights from quantum chemistry calculations with master equations, we discuss a mechanism for negative differential resistance (NDR) in molecular junctions, operated in the regime of weak tunnel coupling. The NDR originates from an interplay of orbital spatial asymmetry and strong electron-electron interaction, which causes the molecule to become trapped in a nonconducting state abov...

Phonon-mediated negative differential conductance in molecular quantum dots

Two-dimensional universal conductance fluctuations and the electron-phonon interaction of surface states in Bi2Te2Se microflakes

The universal conductance fluctuations (UCFs), one of the most important manifestations of mesoscopic electronic interference, have not yet been demonstrated for the two-dimensional surface state of topological insulators (TIs). Even if one delicately suppresses the bulk conductance by improving the quality of TI crystals, the fluctuation of the bulk conductance still keeps competitive and diff...

Current-induced phonon renormalization in molecular junctions

Meilin Bai,1,2 Clotilde S. Cucinotta,2,* Zhuoling Jiang,1 Hao Wang,1 Yongfeng Wang,1,3 Ivan Rungger,2,4 Stefano Sanvito,2,* and Shimin Hou1,3,* 1Key Laboratory for the Physics and Chemistry of Nanodevices, Department of Electronics, Peking University, Beijing 100871, China 2School of Physics, Advanced Materials and Bioengineering Research Centre (AMBER) and Centre for Research on Adaptive Nanos...

Negative differential conductance in molecular junctions: an overview of experiment and theory.

One of the ultimate goals of molecular electronics is to create technologies that will complement-and eventually supersede-Si-based microelectronics technologies. To reach this goal, electronic properties that mimic at least some of the electrical behaviors of today's semiconductor components must be recognized and characterized. An outstanding example for one such behavior is negative differen...