Dual Nature of Magnetism Driven by Momentum Dependent f-d Kondo Hybridization

التفاصيل البيبلوغرافية
العنوان: Dual Nature of Magnetism Driven by Momentum Dependent f-d Kondo Hybridization
المؤلفون: Kang, Byungkyun, Lee, Yongbin, Ke, Liqin, Kim, Hyunsoo, Kim, Myoung-Hwan
سنة النشر: 2023
المجموعة: Condensed Matter
مصطلحات موضوعية: Condensed Matter - Strongly Correlated Electrons
الوصف: Intricate nature of magnetism in uranium-based Kondo lattices is a consequence of correlations between U-5$f$ and conduction electrons. Using linearized quasiparticle self-consistent GW plus dynamical mean-field theory, we demonstrate a crossover from incoherent to coherent $f$-$d$ Kondo cloud in the paramagnetic phase of UTe$_2$ with reduced volumes, USbTe and USbSe. As the transition occurs, we observe an augmented $f$-$d$ coherence and Pauli-like magnetic susceptibility, with a substantial frozen magnetic moment of U-5$f$ persisting. We show that momentum dependent $f$-$d$ hybridization is responsible for the magnetic moments arising from the renormalized $f$ electrons' van Hove singularity. Our findings provide a unique perspective to explain the dual nature of magnetism and the long-range magnetic ordering induced by pressure in UTe$_2$.
نوع الوثيقة: Working Paper
URL الوصول: http://arxiv.org/abs/2305.08003
رقم الأكسشن: edsarx.2305.08003
قاعدة البيانات: arXiv