Orbital two-channel Kondo effect in epitaxial ferromagnetic L10-MnAl films

Abstract

We report the first experimental realization of orbital two-channel Kondo (2CK) effect from two-level systems (TLSs) in epitaxial L10-MnAl films with giant perpendicular magnetic anisotropy. The resistivity exhibits a low-temperature (T) upturn with a clear transition from a lnT-dependence to T1/2-dependence and deviation from it in three distinct T regimes, which are independent of applied magnetic fields. The magnitudes of Kondo temperature and energy splitting of the TLSs are greatly enhanced in comparison to those in other systems exhibiting orbital 2CK, suggesting strong coupling between the tunneling centers with conduction electrons via resonant scattering. These results point to a considerable robustness of the orbital 2CK effect even in the presence of ferromagnetic ordering and significant spin polarization of the conduction electrons.

References in corpus (8)

• Orbital Kondo effect in carbon nanotubes
• Observation of the two-channel Kondo effect
• Topological Kondo effect with Majorana fermions
• Multifunctional L10-Mn1.5Ga films with ultrahigh coercivity, giant perpendicular magnetocrystalline anisotropy and large magnetic energy product
• Recent progress in perpendicularly magnetized Mn-based binary alloy films
• Anomalous Hall Effect in Chemically Disordered L10-Mn1.5Ga
• Interaction-Induced Renormalization of Tunneling into Multiple Majorana End States of a Topological Superconducting Wire
• Two-Channel Kondo Effects in Al/AlO${}_x$/Sc Planar Tunnel Junctions

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