Effective field theory of interacting π electrons

被引：13
|
作者：
Barr, J. D. [1 ]
Stafford, C. A. [1 ]
Bergfield, J. P. [2 ,3 ]
机构：
[1] Univ Arizona, Dept Phys, Tucson, AZ 85721 USA
[2] Univ Copenhagen, Nanosci Ctr, DK-2100 Copenhagen O, Denmark
[3] Univ Copenhagen, Dept Chem, DK-2100 Copenhagen O, Denmark
来源：
PHYSICAL REVIEW B | 2012年 / 86卷 / 11期
关键词：
SINGLE-MOLECULE CIRCUITS; PHOTOELECTRON-SPECTRA; ANGULAR-DISTRIBUTIONS; ABSORPTION-SPECTRA; OPTICAL-ABSORPTION; BENZENE; TRANSMISSION; CONDUCTANCE; SURFACE; STATES;
D O I：
10.1103/PhysRevB.86.115403
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We develop a pi-electron effective field theory (pi-EFT) wherein the two-body Hamiltonian for a pi-electron system is expressed in terms of three effective parameters: the pi-orbital quadrupole moment, the on-site repulsion, and a dielectric constant. As a first application of this pi-EFT, we develop a model of screening in molecular junctions based on image multipole moments, and use this to investigate the reduction of the HOMO-LUMO gap of benzene. Beyond this, we also use pi-EFT to calculate the differential conductance spectrum of the prototypical benzenedithiol-Au single-molecule junction and the pi-electron contribution to the van der Waals interaction between benzene and a metallic electrode.
引用
收藏
页数：11
相关论文
共 50 条
  • [1] Topological field theory and thermal responses of interacting topological superconductors
    Wang, Zhong
    Qi, Xiao-Liang
    Zhang, Shou-Cheng
    PHYSICAL REVIEW B, 2011, 84 (01):
  • [2] Exactly Solvable Model for Strongly Interacting Electrons in a Magnetic Field
    Anand, Abhishek
    Jain, J. K.
    Sreejith, G. J.
    PHYSICAL REVIEW LETTERS, 2021, 126 (13)
  • [3] Interacting electrons in a magnetic field in a center-of-mass free basis
    Kramer, Peter
    Kramer, Tobias
    PHYSICA SCRIPTA, 2015, 90 (07)
  • [4] Magnetic response of interacting electrons in a fractal network: A mean-field approach
    Maiti, Santanu K.
    Chakrabarti, Arunava
    PHYSICAL REVIEW B, 2010, 82 (18):
  • [5] Effect of Magnetic Field on Diamagnetic Susceptibility of Two Interacting Electrons in a Quantum Dot
    Radhakrishnan, N.
    Peter, A. John
    INTERNATIONAL JOURNAL OF QUANTUM CHEMISTRY, 2011, 111 (05) : 1101 - 1107
  • [6] Effective field theory for cold atoms
    Hammer, HW
    Few-Body Problems in Physics, 2005, 768 : 167 - 173
  • [7] Hamiltonian models of interacting fermion fields in quantum field theory
    Alvarez, Benjamin
    Faupin, Jeremy
    Guillot, Jean-Claude
    LETTERS IN MATHEMATICAL PHYSICS, 2019, 109 (11) : 2403 - 2437
  • [8] An effective field theory of magneto-elasticity
    Pavaskar, Shashin
    Penco, Riccardo
    Rothstein, Ira Z.
    SCIPOST PHYSICS, 2022, 12 (05):
  • [9] 6ΛΛHe in cluster effective field theory
    Ando, Shung-Ichi
    Oh, Yongseok
    PHYSICAL REVIEW C, 2014, 90 (03):
  • [10] Effective field theory of 3He
    Ando, S. -I.
    HADRON NUCLEAR PHYSICS 2011 (HNP2011): QUARKS IN HADRONS, NUCLEI, AND HADRONIC MATTER, 2012, 20
12345