A. D. Hillier

Superconducting ground state study of Cr-based equiatomic high-entropy alloy through $μ SR$

Sonika Jangid, Rhea Stewart, Adrian D. Hillier +1

High-entropy alloy superconductors, characterized by extreme chemical disorder and complex electronic environments, have attracted significant attention as model systems for explor…

Discovery of Quasi One Dimensional Superconductivity in PtPb3Bi

Shashank Srivastava, Yash Vardhan, Anshu Kataria +11

Quasi one dimensional materials provide a compelling platform where reduced dimensionality stabilizes intertwined topological and superconducting phases. Here we report superconduc…

Hourglass Dirac chains enable intrinsic topological superconductivity in nonsymmorphic silicides

Shashank Srivastava, Dibyendu Samanta, Pavan Kumar Meena +8

Nonsymmorphic crystalline symmetries provide a robust route to symmetry-protected electronic topology, yet their role in stabilizing intrinsic topological superconductivity remains…

Observation of Time-Reversal Symmetry Breaking in the Type-I Superconductor YbSb $_{2}$

Anshu Kataria, Shashank Srivastava, Dibyendu Samanta +9

The spontaneous breaking of time-reversal symmetry is a hallmark of unconventional superconductivity, typically observed in type-II superconductors. Here, we report evidence of tim…

Probing the intermediate state of type-I superconductor SnAs using Muon Spin Spectroscopy

Shashank Srivastava, Omkar Kulkarni, Arushi +8

Superconductivity with non-trivial band topology provides a novel platform for exploring topological superconductivity and its quantum applications. A detailed microscopic understa…

nucl-ex2025

Measurement of production branching ratio after muon nuclear capture reaction of Al and Si isotopes

R. Mizuno, M. Niikura, T. Y. Saito +18

Background: Muon nuclear capture is a reaction between a muon and a proton inside a nucleus through weak interactions. This reaction results in the formation of an excited nucleus,…

Unconventional superconductivity in a non-centrosymmetric $α$ -Mn alloy NbTaOs $_{2}$

R. K. Kushwaha, Arushi, S. Jangid +4

Non-centrosymmetric superconductors have emerged as a fascinating avenue for exploring unconventional superconductivity. Their broken inversion and time-reversal symmetries make th…

Unveiling superconducting properties of an equiatomic hexagonal high entropy alloy via muon spin relaxation and rotation measurement

Sonika Jangid, Pavan Kumar Meena, Niraj P. Atale +3

Superconducting high-entropy alloys (HEAs) present a unique platform for studying the effect of disorder, composition, and crystal structure on superconducting pairing. In this stu…

Topological superconductivity in hourglass Dirac chain metals (Ti, Hf)IrGe

Pavan Kumar Meena, Dibyendu Samanta, Sonika Jangid +5

Realizing topological superconductivity in stoichiometric materials is a key challenge in condensed matter physics. Here, we report the discovery of ternary germanide superconducto…

Observation of superconductivity in a nontrivial $Z_{2}$ approximant quasicrystal

Pavan Kumar Meena, Rahul Verma, Arushi +6

Superconductivity and nontrivial topology are highly sought-after phenomena in quantum materials. While many topological crystalline materials have been found to exhibit supercondu…

$μ$ SR study on noncentrosymmetric superconductor NbGe $_{2}$

J. C. Jiao, K. W. Chen, A. D. Hillier +6

We report a muon spin relaxation ( $μ$ SR) study on polycrystalline noncentrosymmetric superconductor NbGe $_{2}$ ~with the superconducting transition temperature $T_{c} = 2.0 \sim 2.1$ ~K. Zer…

Time-Reversal Symmetry Breaking in Re-Based Kagome Lattice Superconductor

Manasi Mandal, A. Kataria, P. K. Meena +6

We investigated the Re-based kagome superconductor Re $_{2}$ Zr through various measurements, including resistivity, magnetization, specific heat, and muon spin rotation and relaxation…