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Orbital two-channel Kondo effect in epitaxial ferromagnetic L1(0)-MnAl films

Title: Orbital two-channel Kondo effect in epitaxial ferromagnetic L1(0)-MnAl films.
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Name(s): Zhu, L. J., author
Nie, S. H., author
Xiong, P., author
Schlottmann, P., author
Zhao, J. H., author
Type of Resource: text
Genre: Text
Date Issued: 2016-02
Physical Form: computer
online resource
Extent: 1 online resource
Language(s): English
Abstract/Description: The orbital two-channel Kondo effect displaying exotic non-Fermi liquid behaviour arises in the intricate scenario of two conduction electrons compensating a pseudo-spin-1/2 impurity of two-level system. Despite extensive efforts for several decades, no material system has been clearly identified to exhibit all three transport regimes characteristic of the two-channel Kondo effect in the same sample, leaving the interpretation of the experimental results a subject of debate. Here we present a transport study suggestive of a robust orbital two-channel Kondo effect in epitaxial ferromagnetic L1(0)-MnAl films, as evidenced by a magnetic field-independent resistivity upturn with a clear transition from logarithmic- to square-root temperature dependence and deviation from it in three distinct temperature regimes. Our results also provide an experimental indication of the presence of two-channel Kondo physics in a ferromagnet, pointing to considerable robustness of the orbital two-channel Kondo effect even in the presence of spin polarization of the conduction electrons.
Identifier: FSU_libsubv1_wos_000371042300002 (IID), 10.1038/ncomms10817 (DOI)
Keywords: 2-level tunneling systems, anisotropy, Behavior, centers, energy, field, impurities, metals, Scattering, temperature
Publication Note: The publisher’s version of record is available at http://www.dx.doi.org/10.1038/ncomms10817
Persistent Link to This Record: http://purl.flvc.org/fsu/fd/FSU_libsubv1_wos_000371042300002
Owner Institution: FSU
Is Part Of: Nature Communications.
2041-1723
Issue: vol. 7

Choose the citation style.
Zhu, L. J., Nie, S. H., Xiong, P., Schlottmann, P., & Zhao, J. H. (2016). Orbital two-channel Kondo effect in epitaxial ferromagnetic L1(0)-MnAl films. Nature Communications. Retrieved from http://purl.flvc.org/fsu/fd/FSU_libsubv1_wos_000371042300002