Related Experiment Video
Updated: Jan 24, 2026

Single-Molecule Imaging of Nuclear Transport
Published on: June 9, 2010
Exchange-dependent spin polarized transport and phase transition in a triple monomer molecule
Yongchen Xiong1, Shijun Luo1, Haiming Huang1
1Advanced Functional Material and Photoelectric Technology Research Institution, School of Science, Hubei University of Automotive Technology, Shiyan 442002, People's Republic of China. xiongyc_lx@huat.edu.cn.
Abstract:
Molecular junctions contribute significantly to the fundamental understanding of the quantum information technologies in molecular spintronics. In this paper, with the aid of the state of the art numerical renormalization group method, we find a triple monomer molecule structure with strong electron-electron interactions could be a potential candidate for a multifunctional spin polarizer when an external magnetic field along the z axis is applied. It is demonstrated that the polarizing scenarios depend closely on the inter-orbital exchange couplings, and results in several kinds of spin polarizers, e.g., the unidirectional, the bidirectional, the dual, and the ternary spin polarizers. We show in detail the related phase diagram, and conclude the Zeeman effect and the charge switching for the bonding, anti-bonding and non-bonding orbitals are responsible for the spin polarizing transport. We stress even when the energy levels are chosen beyond the Kondo regime, the structure still shows a promising platform for molecular spintronics components.
Related Concept Videos
Phase Transitions
Phase Transitions: Sublimation and Deposition
Gas Exchange and Transport
Phase Transitions: Melting and Freezing
Phase Transitions: Vaporization and Condensation
Phase Diagrams

