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Neacsa, Daniela; Gruener, G.; Hébert, S.; Soret, J. C.

doi:10.1016/j.jmmm.2017.01.086

Cited by 3 publications

(3 citation statements)

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“…The critical exponents for x = 0.08 exhibits β = 1.5 and γ = 3.4, which is close to that of three-dimensional weakly anisotropic Heisenberg spin glass [34,35]. With increasing the Fe concentration, our results may suggest a crossover from the three-dimensional Heisenberg spin glass to the weakly anisotropic Heisenberg spin glass.…”

Section: Resultssupporting

confidence: 71%

“…The static critical exponents for x = 0.01, 0.02, and 0.04 are comparable to β = 1.0 ± 0.1 and γ = 2.2 ± 0.1 of three-dimensional Heisenberg-like spin glass [31][32][33]. The critical exponents for x = 0.08 exhibits β = 1.5 and γ = 3.4, which is close to that of three-dimensional weakly anisotropic Heisenberg spin glass [34,35]. With increasing the Fe concentration, our results may suggest a crossover from the threedimensional Heisenberg spin glass to the weakly anisotropic Heisenberg spin glass.…”

Section: Resultsmentioning

confidence: 51%

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Coexistence of the Kondo effect and spin glass physics in Fe-doped NbS₂

Nobukane

Tabata²,

Kurosawa³

et al. 2020

J. Phys.: Condens. Matter

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We report the coexistence of the Kondo effect and spin glass behavior in Fe-doped NbS 2 single crystals. The Fe x NbS 2 shows the resistance minimum and negative magnetoresistance due to the Kondo effect, and exhibits no superconducting behavior at low temperatures. The resistance curve follows a numerical renormalization-group theory using the Kondo temperature T K = 12.3 K for x = 0.01 as evidence of Kondo effect. Scanning tunneling microscope/spectroscopy (STM/STS) revealed the presence of Fe atoms near sulfur atoms and asymmetric spectra. The magnetic susceptibility exhibits a feature of spin glass. The static critical exponents determined by the universal scaling of the nonlinear part of the susceptibility suggest a three-dimensional Heisenberg spin glass. The doped-Fe atoms in the intra-and inter-layers revealed by the X-ray result can realize the coexistence of the Kondo effect and spin glass.

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Section: Resultssupporting

confidence: 71%

Section: Resultsmentioning

confidence: 51%

Coexistence of the Kondo effect and spin glass physics in Fe-doped NbS₂

Nobukane

Tabata²,

Kurosawa³

et al. 2020

J. Phys.: Condens. Matter

View full text Add to dashboard Cite

show abstract

“…For the cluster glass system (weak interaction regime), the value of δ Th must range between 0.3–0.6, while for spin-glass (SG) system (the medium to strong interaction regime), it's within 0.07–0.3. 56 The δ Th values obtained at different frequencies (see Table 2 ), characterize a weak interaction mechanism between the magnetic entities. This implies the existence of cluster glass state in the Cu 1.5 Mn 1.5 O 4 sample.…”

Section: Resultsmentioning

confidence: 99%