Strong correlation between anomalous quasiparticle scattering and unconventional superconductivity in the hidden-order phase of URu<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mrow /><mml:mn>2</mml:mn></mml:msub></mml:math>Si<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mrow /><mml:mn>2</mml:mn></mml:msub></mml:math>

Tateiwa, Naoyuki; Matsuda, Tatsuma D.; Ōnuki, Yoshichika; Haga, Yoshinori; Fisk, Z.

doi:10.1103/physrevb.85.054516

Cited by 10 publications

(4 citation statements)

References 27 publications

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“…Detailed calculations were performed with the underscreened Anderson Model [15], using two degenerate 5f bands. The proposed mechanism should also be operative for transition metal compounds which is in accord with the hypothesis of Tateiwa et al [16], who suggested that ''Hidden Order'' of the type found in URu 2 Si 2 could also be responsible for the mysterious pseudo-gap phase seen in the high-temperature iron-pnictide superconductors.…”

supporting

confidence: 68%

Can there be “Hidden Order” in transition metals?

Riseborough

Magalhães

2013

Physica Status Solidi (b)

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We examine the conditions required to produce a combined spin and orbital density wave state such as that which has been proposed to describe the “Hidden Order” phase of URu2Si2. By using an idealized tight‐binding model with only nearest‐neighbor hopping processes, we search for factors that could stabilize “Hidden Order” phases in transition metals. It is found that strong anisotropy or reduced dimensionality may stabilize “Hidden Order” over spin‐density wave phases. This suggests the possibility that the enigmatic pseudogap phases reported for the high‐temperature ironpnictide superconductors may also be described by the Hund's rule “Hidden Order” mechanism.

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supporting

confidence: 68%

Can there be “Hidden Order” in transition metals?

Riseborough

Magalhães

2013

Physica Status Solidi (b)

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“…Figures 5(a) and 5(b) represent the A vs. γ 2 and |S /T | vs. γ plots, respectively, for various materials . Note that we refer the literature data, but the analysis for the Fermi-liquid behavior is a remaining issue [89,90]. Here, although the Kadowaki-Woods plot can be corrected by involving the degeneracies [91][92][93], both plots well explain the universal relations among those quantities for the correlated materials with a metallic carrier density.…”

Section: Relation In the Transport Coefficientsmentioning

confidence: 83%

Correlation in transport coefficients of hole-doped CuRhO2 single crystals

2019

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To clarify the origin of the nontrivial thermoelectric properties observed in the delafossite oxide CuRhO 2 polycrystals, we have performed the systematic transport measurements on the single-crystalline CuRhO 2 samples. In the parent compound, we find a pronounced peak structure due to a phonon-drag effect in the temperature dependence of the Seebeck coefficient, which is also confirmed by the size effect experiments. In the Mg-substituted crystals, in contrast to the results of the polycrystals, both the resistivity and the Seebeck coefficient decrease with increasing Mg content y. In particular, the coefficient A for the T 2 term of the resistivity and the T -linear coefficient for the Seebeck coefficient at low temperatures are well described within a simple relationship expected for metals, which is also applicable to the correlated materials with low carrier densities.

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“…It is also known that the electrical resistivity of Sr 2 RuO 4 is well described within the FL scheme [72], in which the resistivity is given as ρ(T ) = ρ 0 + AT ν with the exponent ν = 2. On the other hand, the determination of ν is delicate [80], and as seen in other correlated materials, ν apparently depends on the residual resistivity even in high-purity level [81]. It may be useful to examine the exponent in high-purity crystals [82].…”

Section: Resultsmentioning

confidence: 99%

Enhanced Seebeck coefficient through the magnetic fluctuations in Sr$_2$Ru$_{1-x}M_x$O$_4$ ($M = $ Co, Mn)

Yamanaka,

Okazaki,

Yaguchi

2022

Preprint

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The layered perovskite Sr 2 RuO 4 is a most intensively studied superconductor, but its pairing mechanism, which is often coupled intimately with magnetic fluctuations in correlated materials, is still an open question.Here we present a systematic evolution of the Seebeck coefficient in Co-and Mn-substituted Sr 2 RuO 4 single crystals, in which ferromagnetic and antiferromagnetic glassy states respectively emerge in proximity to the superconducting phase of the parent compound. We find that the Seebeck coefficient S divided by temperature T , S /T , shows a maximum near characteristic temperatures seen in the irreversible magnetization M ir in both of the Co-and Mn-substituted crystals, demonstrating both of the ferromagnetic and antiferromagnetic fluctuations to enhance the Seebeck coefficient. Interestingly, S /T increases with lowering temperature in the parent compound, reminiscent of non-Fermi-liquid behavior, indicating an essential role of coexisting ferromagnetic and antiferromagnetic fluctuations for the itinerant electrons in Sr 2 RuO 4 .

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Strong correlation between anomalous quasiparticle scattering and unconventional superconductivity in the hidden-order phase of URu2Si2

Cited by 10 publications

References 27 publications

Can there be “Hidden Order” in transition metals?

Can there be “Hidden Order” in transition metals?

Correlation in transport coefficients of hole-doped CuRhO2 single crystals

Enhanced Seebeck coefficient through the magnetic fluctuations in Sr$_2$Ru$_{1-x}M_x$O$_4$ ($M = $ Co, Mn)

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