New results about the one dimensional Kondo lattice model
K. Le Hur
Abstract
The one-dimensional Kondo lattice model (1D KLM) is usually defined by the Kondo exchange J between conduction electrons and spins of the array, and the hopping strength t for the moving electrons. Here, we also include a direct exchange K term between spins of the lattice, and we investigate situations where the bare value of K does not exceed J. By using the non-Abelian bosonization, we show that a coherent heavy-fermion phase can be stabilized, when the bare value of K exceeds the RKKY exchange (ruled by TA J2/t). Conversely, when K<TA, the low-energy fixed point is rather a Tomonaga-Luttinger (TL) liquid.
Create a lesson
Related papers
Metallic electron crystals in rhombohedral graphene as a bridge to twisted WSe2
Wentai Deng, Chenyuan Li, Naoto Nakatsuji et al.
Anyons at impurities: Fractional charge measurement and "wrong sign" binding
Haydn S. Adlong, Arthur Christianen, Atac Imamoglu et al.
Large-Tiny Spin-Stripe SDW Order in La3Ni2O7 via 139La-NQR Spectroscopy: Reconsideration Based on the Am2m Structure
Mitsuharu Yashima, Hongnam Lee, Takumi Ino et al.
Influence of the Néel vector on the bulk electronic structure of MnTe measured from the (1 1 00) surface
D. A. Usanov, A. B. Hellenes, S. Hahn et al.
Disorder-Induced Griffiths like Phase and Charge Localization in Sr2FeRuO6
Koustav Pal, Shuvendu Ghosh, I. Das
Interplay of electric field and electronic correlations in pairing competition in bilayer nickelates
Yanmei Cai, Yicheng Xiong, Ying Liang et al.