Nematic superconductivity in the topological semimetal 
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H., Siddiquee,; Munir, Riffat; Dissanayake, Charuni; Vaidya, Priyanka; Nickle, Cameron; Barco, Enrique del; Lamura, G.; Baines, C.; Cahen, Sébastien; Hérold, Claire; Gentile, Paola; Shiroka, T.; Nakajima, Yasuyuki

doi:10.1103/physrevb.105.094508

Cited by 10 publications

(5 citation statements)

References 51 publications

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“…The superconducting volume fraction is found to be around 55% at 10 Oe, showing the presence of bulk superconductivity in the synthesized Sn 4 Au single crystal. The observed value of superconducting volume fraction is comparable to some of the other superconducting topological materials [23,31,32]. The inset of fig.…”

Section: (A)supporting

confidence: 76%

“…The superconducting state of candidates of topological superconductivity is often characterized by two-fold anisotropic properties [20][21][22][23][24]. Here, angle-dependent magnetotransport measurements have been carried out to check the same.…”

Section: (A)mentioning

confidence: 99%

“…Sn 4 Au lacks theoretical and experimental reports that could explain the observed two-fold anisotropic superconducting properties in the same. Topological superconducting materials are reported to show both in and out-of-plane anisotropic superconducting state due to breaking crystalline symmetry in the same [3,[20][21][22][23][24]33,34]. The other layered superconductors [35] are also found to show a similar feature as well.…”

Section: (A)mentioning

confidence: 99%

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Two-fold anisotropic superconducting state in topological superconductor Sn₄Au

Sharma

Gurjar

Patnaik

et al. 2023

EPL

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Here we report the anisotropic magnetotransport properties in the superconducting state of Sn4Au single crystal. Sn4Au single crystal is synthesized through an easy melt growth method. Superconducting properties are evidenced from resistivity vs. temperature (-T) and DC magnetization measurements. Isothermal magnetization measurements (M-H) hint toward type-II superconductivity in Sn4Au. In-plane and out-of-plane -H measurements show anisotropic behavior of the upper critical field at temperatures below superconducting transition (Tc = 2.3 K). The observed anisotropy is more elucidated in -H measurements performed below Tc at different tilt angles. The anisotropy parameter () is found to be 1.26. The observed results show the presence two-fold anisotropic superconducting state in Sn4Au single crystal, which may be induced due to the layered structure of synthesized Sn4Au single crystal.

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Section: (A)supporting

confidence: 76%

Section: (A)mentioning

confidence: 99%

Section: (A)mentioning

confidence: 99%

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Two-fold anisotropic superconducting state in topological superconductor Sn₄Au

Sharma

Gurjar

Patnaik

et al. 2023

EPL

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“…A recent demonstration of the Ca 7 Sn 6 function as an anode material with a high working voltage of 4.45 V, excellent cyclability with 95% retention after 350 cycles, and good capacity of 85 mA h g −1 for Ca-ion batteries [38] spurred computational studies of the binary compounds' electrochemical, stability, and elastic properties [107,108] and further experimental investigations of the Ca-Sn materials' energy storage potential [109]. CaSn 3 with the Cu 3 Au-type (L1 2 ) structure has been shown to have nontrivial topological and superconducting properties [110][111][112][113][114], while CaSn has been found to be a nodal-line semimetal with potential for topological superconductivity [115]. Figs.…”

Section: B the Ca-sn Binarymentioning

confidence: 99%

Machine learning search for stable binary Sn alloys with Na, Ca, Cu, Pd, and Ag

Thorn,

Gochitashvili,

Kharabadze

et al. 2023

Phys. Chem. Chem. Phys.

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“…PtSn 4 [36] and PdSn 4 [37]. Topological semimetals provide greater opportunity to explore superconductivity along with topological character [38,39]. Topological properties of superconducting AuSn 4 have not been extensively studied to date.…”

Section: Introductionmentioning

confidence: 99%

Non-trivial band topology in the superconductor AuSn₄: a first principle study

Karn

Sharma

Awana

2022

Supercond. Sci. Technol.

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Topological semimetals such as Weyl or Dirac semimetal with superconductivity have emerged as a new class of topological materials to realize and study Majorana Fermion in its intrinsic form. This article reports the Density Functional Theory (DFT) calculated bulk electronic band structure of recently discovered topological superconductor candidate Sn4Au. This study is further extended to the calculation of Z2 invariants. The Fermi surfaces corresponding to the bands which are responsible for non-trivial band topology along with the surface states are also mapped. The complete study suggests that Sn4Au is a topological semimetal. On Sn4Au, it is the first report in the literature showing the non-trivial band topology based on first-principle calculations.

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Nematic superconductivity in the topological semimetal CaSn3

Cited by 10 publications

References 51 publications

Two-fold anisotropic superconducting state in topological superconductor Sn₄Au

Two-fold anisotropic superconducting state in topological superconductor Sn₄Au

Machine learning search for stable binary Sn alloys with Na, Ca, Cu, Pd, and Ag

Non-trivial band topology in the superconductor AuSn₄: a first principle study

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Nematic superconductivity in the topological semimetal CaSn3

Cited by 10 publications

References 51 publications

Two-fold anisotropic superconducting state in topological superconductor Sn4Au

Two-fold anisotropic superconducting state in topological superconductor Sn4Au

Machine learning search for stable binary Sn alloys with Na, Ca, Cu, Pd, and Ag

Non-trivial band topology in the superconductor AuSn4: a first principle study

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Two-fold anisotropic superconducting state in topological superconductor Sn₄Au

Two-fold anisotropic superconducting state in topological superconductor Sn₄Au

Non-trivial band topology in the superconductor AuSn₄: a first principle study