2010/10/25 by Andrea Di Ciolo, Luca F. Tocchio, Claudius Gros
Physics and Astronomy · #Antiferromagnetism #Condensed matter physics #Materials science #Matrix (chemical analysis) #Physics #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Quantum mechanics #Quantum tunnelling #Statistical physics #Theoretical and Computational Physics #Wave function #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.83.165116
published in Physical Review B 83(16) (American Physical Society) · 16 pages, 10 figures
arxiv created 2010/10/25 · openalex publication_date 2011/04/15 · arxiv updated 2013/05/29 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We use a generalized Gutzwiller approximation elaborated to evaluate matrix elements with partially projected wave functions and formerly applied to homogeneous systems [N. Fukushima et al., Phys. Rev. B 72, 144505 (2005); B. Edegger et al., Adv. Phys. 56, 927 (2007)]. In the present paper we consider projected single-particle (hole) excitations for electronic systems with antiferromagnetic order and obtain the corresponding tunneling probabilities. The accuracy and the reliability of our analytical approximation is tested using the variational Monte Carlo method. Possible comparisons with experimental results are also discussed.