On the Class "A" Fission-Neutron Irradiation of Small Laboratory Animals

Zaránd, P

doi:10.2307/3574270

Cited by 5 publications

(5 citation statements)

References 6 publications

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“…Gd, Mn, Cr) [17,18]. Finally, our work motivates numerical renormalization group (NRG) studies, where quantum fluctuations can be accounted for, shedding light on the interplay between Kondo singlet formation and YSR-induced spin-spin interactions [40].…”

mentioning

confidence: 81%

Enhanced Antiferromagnetic Exchange between Magnetic Impurities in a Superconducting Host

Yao¹,

Glazman²,

Demler³

et al. 2014

Phys. Rev. Lett.

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It is generally believed that superconductivity only weakly affects the indirect exchange between magnetic impurities. If the distance r between impurities is smaller than the superconducting coherence length (r ≲ ξ), this exchange is thought to be dominated by Ruderman-Kittel-Kasuya-Yosida (RKKY) interactions, identical to the those in a normal metallic host. This perception is based on a perturbative treatment of the exchange interaction. Here, we provide a nonperturbative analysis and demonstrate that the presence of Yu-Shiba-Rusinov bound states induces a strong 1/r(2) antiferromagnetic interaction that can dominate over conventional RKKY even at distances significantly smaller than the coherence length (r ≪ ξ). Experimental signatures, implications, and applications are discussed.

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mentioning

confidence: 81%

Enhanced Antiferromagnetic Exchange between Magnetic Impurities in a Superconducting Host

Yao¹,

Glazman²,

Demler³

et al. 2014

Phys. Rev. Lett.

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“…Our experimental findings lead to the suggestion of a two-channel Kondo effect originating from interactions between the conduction electrons and TLS. We hope that our results will have a significant impact on this interesting field of research, given the fact that the existence, in real matter, of a twochannel Kondo regime due to tunneling particles is still a matter of strong current controversy [9,17].…”

mentioning

confidence: 94%

“…Moreover, recent theoretical studies have shown that not all of the possible internal structures of the defect have been explored [16]. Finally, a significant enhancement of the Kondo temperature is suggested if the conduction electrons are coupled to the tunneling impurity via resonant scattering [17].…”

mentioning

confidence: 99%

Two-Channel Kondo Effect in Glasslike ThAsSe

et al. 2005

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We present low-temperature heat and charge transport as well as caloric properties of a ThAsSe single crystal. An extra -AT(1/2) term in the electrical resistivity, independent of magnetic fields as high as 14 T, provides evidence for an unusual scattering of conduction electrons. Additionally, both the thermal conductivity and the specific heat show a glass-type temperature dependence which signifies the presence of tunneling states. These observations apparently point to an experimental realization of a two-channel Kondo effect derived from structural two-level systems.

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“…Recently a mechanism of a resonant scattering of the tunneling impurity was proposed in order to obtain rather high Kondo temperature. 24) In this paper, we consider the case D 0 $ 100 K $ V B . Note that V B is comparable to h " !…”

Section: Perturbative Renormalization Group Approachmentioning

confidence: 99%

Local Heavy Quasiparticle in Four-Level Kondo Model

2005

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An impurity four-level Kondo model, in which an ion is tunneling among 4-stable points and interacting with surrounding conduction electrons, is investigated using both perturbative and numerical renormalization group methods. The results of numerical renormalization group studies show that it is possible to construct the ground state wavefunction including the excited ion states if we take into account the interaction between the conduction electrons and the ion. The resultant effective mass of quasiparticles is moderately enhanced. This result offers a good explanation for the enhanced and magnetically robust Sommerfeld coefficient observed in SmOs 4 Sb 12 , some other filled-skutterudites, and clathrate compounds.

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On the Class "A" Fission-Neutron Irradiation of Small Laboratory Animals

Cited by 5 publications

References 6 publications

Enhanced Antiferromagnetic Exchange between Magnetic Impurities in a Superconducting Host

Enhanced Antiferromagnetic Exchange between Magnetic Impurities in a Superconducting Host

Two-Channel Kondo Effect in Glasslike ThAsSe

Local Heavy Quasiparticle in Four-Level Kondo Model

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