Synthesis and Superconducting Properties of a Hexagonal Phosphide ScRhP

Inohara, Takumi; Yamakawa, Youichi; Takenaka, Koshi

doi:10.7566/jpsj.85.094706

Cited by 16 publications

(24 citation statements)

References 31 publications

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“…The calculated values of u D for ScRhP and ScIrP are 459 and 389 K, respectively. The respective values estimated from the coefficient of the lattice heat capacity b are found to be 287 and 250 K. [10,11] Notably, the Debye temperature obtained from the elastic constants varies substantially from those extracted from the fit of lattice heat capacity. The fit to the heat capacity data with a singular Debye temperature always introduces error.…”

Section: Mechanical Propertiesmentioning

confidence: 98%

“…The overall band profiles for both the new silicide superconductors are almost similar to those found in literatures. [10,11] To further elucidate the nature of chemical bonding in ScRhP and ScIrP, we have calculated the total and partial electronic density of states (DOS) (refer to Figure 3a and b). The sharp peak of the DOS at the Fermi level E F is an indication of structural instability, whereas a deep valley of DOS at E F implies the structural stability.…”

Section: Electronic Propertiesmentioning

confidence: 99%

“…For the present case, the measured value of this parameter is found in previous studies. [10,11] So, we proceed with this method with the following equation [60] :…”

Section: Superconducting State Propertiesmentioning

confidence: 99%

“…In fact, the superconductivity in MM ′ X gained the interest of the scientific community. Very recently, Okamoto et al synthesized the ternary phosphide ScIrP and confirmed its superconducting transition temperature of 3.4 K. Following this study, Inohara et al reported the discovery of ScRhP, which shows superconductivity with T c ∼ of 2 K. They also discuss the distinct features of superconducting state in ScRhP by means of comparison with its isovalent and isostructural ScIrP. The comparison shows that T c of ScRhP is nearly half that of ScIrP, whereas the upper critical field H c2 (0) of ScRhP is found to be only ∼1/10 of that of ScIrP.…”

Section: Introductionmentioning

confidence: 96%

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First‐Principles Study of Superconducting ScRhP and ScIrP pnictides

Nasir

Hadi

Rayhan

et al. 2017

Physica Status Solidi (b)

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For the first time, we have reported in this study an ab initio investigation on elastic properties, Debye temperature, Mulliken population, Vickers hardness, and charge density of the two recently synthesized superconducting ScRhP and ScIrP pnictides. The optimized cell parameters show fair agreement with the experimental results. The mechanical stability of both ternary phosphides is confirmed via the calculated elastic constants. Both compounds are ductile in nature and damage tolerant. ScIrP is expected to be elastically more anisotropic than ScRhP. The estimated value of Debye temperature predicts that ScRhP is thermally more conductive than ScIrP and the phonon frequency in ScRhP is higher than that in ScIrP. Both pnictides are soft and easily machinable due to their low Vickers hardness. Moreover, the hardness of ScRhP is lower due to the presence of antibonding Rh–Rh in ScRhP. The metallic conductivity of ScRhP reduces significantly when Rh is replaced with Ir. The main contribution to the total density of states (TDOS) at Fermi‐level (EF) comes from d‐electrons of Sc and Rh/Ir in both pnictides. These two ternary compounds are characterized mainly by metallic and covalent bonding with little ionic contribution. The calculated superconducting transition temperatures fairly coincide with the reported measured values.

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Section: Mechanical Propertiesmentioning

confidence: 98%

Section: Electronic Propertiesmentioning

confidence: 99%

“…For the present case, the measured value of this parameter is found in previous studies. [10,11] So, we proceed with this method with the following equation [60] :…”

Section: Superconducting State Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 96%

See 2 more Smart Citations

First‐Principles Study of Superconducting ScRhP and ScIrP pnictides

Nasir

Hadi

Rayhan

et al. 2017

Physica Status Solidi (b)

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“…Actually, superconductivity has already been discovered in the Fe 2 P-type ScIrP and ScRhP very recently [20,21].…”

Section: Introductionmentioning

confidence: 99%

Superconductivity at 3.1 K in the orthorhombic ternary silicide ScRuSi

Ruan

Wang

Jia

et al. 2016

Supercond. Sci. Technol.

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Abstract:We report the synthesis, crystal structure, superconductivity and physical property characterizations of the ternary equiatomic compound ScRuSi. Polycrystalline samples of ScRuSi were prepared by an arc-melting method. The as-prepared samples were identified as the orthorhombic Co 2 P-type o-ScRuSi by the powder X-ray diffraction analysis. Electrical resistivity measurement shows o-ScRuSi to be a metal which superconducts below a T c of 3.1 K, and the upper critical field μ 0 H c2 (0) is estimated to be 0.87 T. The magnetization and specific heat measurements confirm the bulk type-II superconductivity in o-ScRuSi, with the specific heat jump within the BCS weak coupling limit. o-ScRuSi is the first Co 2 P-type superconductor containing scandium.After annealing at 1273 K for a week, o-ScRuSi transforms into the hexagonal Fe 2 P-type h-ScRuSi, and the latter is a Pauli-paramagnetic metal with no superconductivity observed above 1.8 K.2

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The Solid Solution Eu₁_–_xSr_xAuIn

Klenner

Bönnighausen

Pöttgen

2020

Zeitschrift anorg allge chemie

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EuAuIn and SrAuIn (TiNiSi type structure, space group Pnma) form a complete solid solution Eu1–xSrxAuIn. Samples with x = 0.2, 0.4, 0.5, 0.6 and 0.8 were prepared by melting of the elements in sealed tantalum ampoules followed by slow cooling. The samples were characterized through Guinier powder patterns. The X‐ray data confirm Vegard type behavior. The crystal structures of Eu0.8Sr0.2AuIn and Eu0.5Sr0.5Au1.02In0.98 were refined from single‐crystal X‐ray diffraction data in order to confirm the Eu/Sr site occupancies. Temperature‐dependent magnetic susceptibility data confirm divalent europium. The Néel temperature linearly drops from 21.0 K for EuAuIn and long‐range magnetic ordering is still present in the x = 0.8 sample with TN = 4.1 K. Low‐field measurements indicate two successive magnetic ordering temperatures for all samples, resulting from a complex interplay of antiferromagnetic and ferromagnetic interactions, similar to the tetrelides EuMgX (X = Si, Ge, Sn). 151Eu Mössbauer spectra confirm the divalent ground state and show complex magnetic hyperfine field splitting at 6 K.

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Synthesis and Superconducting Properties of a Hexagonal Phosphide ScRhP

Cited by 16 publications

References 31 publications

First‐Principles Study of Superconducting ScRhP and ScIrP pnictides

First‐Principles Study of Superconducting ScRhP and ScIrP pnictides

Superconductivity at 3.1 K in the orthorhombic ternary silicide ScRuSi

The Solid Solution Eu₁_–_xSr_xAuIn

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Synthesis and Superconducting Properties of a Hexagonal Phosphide ScRhP

Cited by 16 publications

References 31 publications

First‐Principles Study of Superconducting ScRhP and ScIrP pnictides

First‐Principles Study of Superconducting ScRhP and ScIrP pnictides

Superconductivity at 3.1 K in the orthorhombic ternary silicide ScRuSi

The Solid Solution Eu1–xSrxAuIn

Contact Info

Product

Resources

About

The Solid Solution Eu₁_–_xSr_xAuIn