Pressure dependence of superconductivity in alkali-Bi compounds KBi<sub>2</sub> and RbBi<sub>2</sub>

Li, Huan; Ikeda, Mikiko; Suzuki, Atsushi; Taguchi, Tomoya; Zhang, Yanting; Goto, Hidenori; Eguchi, Ritsuko; Liao, Yen-Fa; Ishii, Hirofumi; Kubozono, Yoshihiro

doi:10.1039/d2cp00679k

Cited by 7 publications

(3 citation statements)

References 48 publications

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“…The T c was almost constant in the pressure range of 0–13.7 GPa, suggesting a robustness of superconductivity against pressure that is similar to the superconducting properties of Bi-based compounds. − Moreover, no structural phase transitions were observed in Bi 2 Pd 3 Se 2 up to approximately 23 GPa, the behavior of which is similar to that of Bi 2 Rh 3 Se 2 . Moreover, a large-β-cell structure (i.e., β ∼ 134°) was successfully applied for the analysis of the crystal structure of Bi 2 Pd 3 Se 2 .…”

Section: Conclusion and Remarksmentioning

confidence: 84%

Pressure Dependence of the Structural and Superconducting Properties of the Bi-Based Superconductor Bi₂Pd₃Se₂

Zhang,

Ikeda,

Utsumi

et al. 2024

Inorg. Chem.

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The structural and superconducting properties of the Bi-based compound Bi 2 Pd 3 Se 2 were investigated over a wide pressure range. The prepared Bi 2 Pd 3 Se 2 sample was a superconductor with a superconducting transition temperature, T c , of approximately 3.0 K, which differed from a previous report (T c of less than 1.0 K). At ambient pressure, the powder X-ray diffraction (XRD) pattern of the Bi 2 Pd 3 Se 2 sample was consistent with that previously reported for Bi 2 Pd 3 Se 2 . The Rietveld method was used to refine the crystal structure, which had a space group of C2/m (No. 12), as reported previously. This compound showed no clear anomaly due to the chargedensity-wave (CDW) transition, as seen from the temperature dependence of magnetic susceptibility. However, the temperature dependence of electrical resistivity indicated a clear anomaly, presumably because of the CDW transition in the low-pressure range; the CDW transition temperature was approximately 230 K. The XRD patterns of the Bi 2 Pd 3 Se 2 sample were measured at 0.160−22.7 GPa, and the patterns were well analyzed by both the Le Bail and Rietveld refinement methods, showing no structural phase transitions in the above pressure range. The pressure dependence of T c of Bi 2 Pd 3 Se 2 was recorded based on the temperature dependence of the electrical resistance, which showed an almost constant T c at 0− 13.7 GPa, and the T c −pressure (p) behavior was fully discussed.

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Section: Conclusion and Remarksmentioning

confidence: 84%

Pressure Dependence of the Structural and Superconducting Properties of the Bi-Based Superconductor Bi₂Pd₃Se₂

Zhang,

Ikeda,

Utsumi

et al. 2024

Inorg. Chem.

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“…It can be utilized to shorten the interatomic distances, regulate the atomic spatial distribution, modulate the electron configuration and exchange interactions, and even induce the emergence of superconductivity or structural phase transitions. [19][20][21][22] Modern high-pressure techniques have become a powerful tool that provides a direct and effective route to study the properties of materials by tuning the structural parameters or the crystal structure without changing chemical compositions. Hence the QSL materials have captured increasing attention in the field of high pressure research.…”

Section: Introductionmentioning

confidence: 99%

Structural phase transformation of quantum spin liquid herbertsmithite via pressure induced enhancement of the cooperative Jahn–Teller effect and antisite disorder

Luo,

Zhang,

et al. 2023

Phys. Chem. Chem. Phys.

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“…A number of binary bismuth superconductors are known, including: Ca11Bi10-x 8 , CaBi2 9,10 , SrBi3 11,12 , BaBi3 13 , Ba2Bi3 14 , LiBi 4,15 , NaBi 3 , KBi2 [16][17][18] , RbBi2 18 , and CsBi2 19 . The latter three compounds are cubic Laves phases, crystallizing in a relatively simple MgCu2-type structure in which Bi atoms form a pyrochlore (vertex sharing tetrahedral) network (Fig.…”

Section: Introductionmentioning

confidence: 99%

Superconductivity in bismuth pyrochlore lattice compounds RbBi2 and CsBi2: the role of relativistic effects

Gutowska

Wiendlocha

Klimczuk

et al. 2022

Preprint

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Superconducting properties of two bismuthide intermetallic compounds, RbBi2 and CsBi2, were studied by means of experimental measurements and ab initio calculations. We show that in both compounds the superconductivity emerges from the pyrochlore Bi lattice and its formation is heavily influenced by relativistic effects. Based on our analysis of the effect of spin-orbit coupling on the electron-phonon coupling we suggest a possible criterion for finding new superconducting materials by looking for structures featuring relativistically-stabilized hypervalent networks of heavy p-block elements.

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Pressure dependence of superconductivity in alkali-Bi compounds KBi₂ and RbBi₂

Abstract: The structural and superconducting properties of alkali-Bi-based compounds, KBi2 and RbBi2, were investigated over a wide pressure range for the first time.

Cited by 7 publications

References 48 publications

Pressure Dependence of the Structural and Superconducting Properties of the Bi-Based Superconductor Bi₂Pd₃Se₂

Pressure Dependence of the Structural and Superconducting Properties of the Bi-Based Superconductor Bi₂Pd₃Se₂

Structural phase transformation of quantum spin liquid herbertsmithite via pressure induced enhancement of the cooperative Jahn–Teller effect and antisite disorder

Superconductivity in bismuth pyrochlore lattice compounds RbBi2 and CsBi2: the role of relativistic effects

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Pressure dependence of superconductivity in alkali-Bi compounds KBi2 and RbBi2

Abstract: The structural and superconducting properties of alkali-Bi-based compounds, KBi2 and RbBi2, were investigated over a wide pressure range for the first time.

Cited by 7 publications

References 48 publications

Pressure Dependence of the Structural and Superconducting Properties of the Bi-Based Superconductor Bi2Pd3Se2

Pressure Dependence of the Structural and Superconducting Properties of the Bi-Based Superconductor Bi2Pd3Se2

Structural phase transformation of quantum spin liquid herbertsmithite via pressure induced enhancement of the cooperative Jahn–Teller effect and antisite disorder

Superconductivity in bismuth pyrochlore lattice compounds RbBi2 and CsBi2: the role of relativistic effects

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Pressure dependence of superconductivity in alkali-Bi compounds KBi₂ and RbBi₂

Pressure Dependence of the Structural and Superconducting Properties of the Bi-Based Superconductor Bi₂Pd₃Se₂

Pressure Dependence of the Structural and Superconducting Properties of the Bi-Based Superconductor Bi₂Pd₃Se₂