Kondo Temperature Evaluated from Linear Conductance in Magnetic Fields

Autor:	Sakano, Rui, Hata, Tokuro, Motoyama, Kaiji, Teratani, Yoshimichi, Tsutsumi, Kazuhiko, Arakawa, Tomonori, Ferrier, Meydi, Deblock, Richard, Eto, Mikio, Kobayashi, Kensuke, Oguri, Akira
Rok vydání:	2023
Předmět:	Condensed Matter - Mesoscale and Nanoscale Physics Condensed Matter - Strongly Correlated Electrons
Zdroj:	Phys. Rev. B 108, 205147 (2023)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevB.108.205147
Popis:	We theoretically and experimentally study the universal scaling property of the spin-1/2 Kondo state in the magnetic field dependence of bias-voltage linear conductance through a quantum dot at low temperatures. We discuss an efficient and reliable procedure to evaluate the Kondo temperature defined at the ground state from experimental or numerical data sets of the magnetic field dependence of the linear conductance or the magnetization of the quantum dot. This procedure is helpful for quantitative comparison of the theory and the experiment, and useful in Kondo-correlated systems where temperature control over a wide range is difficult, such as for cold atoms. We demonstrate its application to experimentally measured electric current through a carbon nanotube quantum dot. Comment: 11 pages, 4 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2304.08544 Zobrazit plný text záznamu View this record from Arxiv