Partial Kondo screening in frustrated Kondo lattice systems

Abstract

We investigate the effect of geometrical frustration on the competition between the Kondo coupling and the Ruderman-Kittel-Kasuya-Yosida interaction in Kondo lattice systems. By variational Monte Carlo simulations, we reveal an emergent quantum phase with partial ordering in which the frustration is relieved by forming a magnetic order on a sublattice and leaving the rest in the Kondo screening with spin-singlet formation. The role of quantum fluctuations and spin-charge interplay is elucidated.

5 pages, 4 figures, accepted for the publication in Phys. Rev. Lett.; (v2) minor corrections

References in corpus (2)

• Variational Monte Carlo Method Combined with Quantum-Number Projection and Multi-Variable Optimization
• The Kondo Lattice Model in Infinite Dimensions II. Static Susceptibilities and Phase Diagram

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