Charge density wave in a doped Kondo chain

Article

关键词: PHASE-DIAGRAM;    ELECTRONIC-PROPERTIES;    LATTICE;    ANTIFERROMAGNETISM;    FERROMAGNETISM;    BEHAVIOR;    ABSENCE;   

DOI  :  10.1103/PhysRevB.99.195109

来源: SCIE

【 摘 要 】

We report the existence of a charge density wave (CDW) in the ground state of the one-dimensional (1D) Kondo lattice model at the filling of n = 0.75 in the weak-coupling region. The CDW is driven by the effective Coulomb repulsion induced by the localized spins. Based on our numerical results using the density matrix renormalization-group method, we show that the CDW phase appears in the paramagnetic region previously known as the Tomonaga-Luttinger liquid. The emergence of this phase serves as an example of a CDW phase induced without bare repulsive interactions, and it enriches the phase diagram of the 1D Kondo lattice model.

【 授权许可】

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