We present a theoretical study of the Kondo effect for a spin-Formula: see text magnetic impurity embedded in an unconventional Formula: see text-wave magnet, employing the variational method and Hirsch-Fye Quantum Monte Carlo simulations. Our work investigates how the host’s unique electronic structure, governed by the spin-dependent hopping (Formula: see text) and the s-d exchange interaction coefficient (Formula: see text), regulates Kondo screening and spatial correlations. We find that Formula: see text minimally impacts the host’s density of states (DOS). In contrast, the introduction of Formula: see text dramatically affects the host system: it splits the Van Hove singularity at the band center Formula: see text into two peaks, significantly reducing the DOS. This DOS reduction makes Kondo screening more difficult, leading to a rapid decrease in the Kondo binding energy. The p-wave structure imposes unique spatial fingerprints on the Kondo screening cloud. Crucially, the spatial decay law transitions from Formula: see text (observed when only Formula: see text is present) to a distinct Formula: see text law upon introducing Formula: see text. Furthermore, the Formula: see text term reflects the host’s broken SUFormula: see text symmetry by inducing off-diagonal spin correlations Formula: see text and Formula: see text, along with complex periodicity (beat phenomena) in the spin-spin correlation functions. These unique spatial features establish the Kondo screening cloud as a sensitive, non-local probe for detecting and identifying this novel unconventional magnetic state.
Lin et al. (Fri,) studied this question.