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We investigate the superconducting properties of Sc$_{5}$Co$_{4}$Si$_{10}$ using low-temperature resistivity, magnetization, heat capacity, and muon-spin rotation and relaxation ($\mu$SR) measurements. We find that Sc$_{5}$Co$_{4}$Si$_{10}$…

${\rm CaPd_2Ge_2}$ which crystallizes in ${\rm ThCr_2Si_2}$-type body-centered tetragonal structure exhibits superconductivity below the critical temperature $T_{\rm c} = 1.69$~K\@. We have investigated the superconducting gap structure and…

Superconductivity · Physics 2025-06-13 V. K. Anand , A. Bhattacharyya , D. T. Adroja , K. Panda , P. K. Biswas , A. D. Hillier , B. Lake

The ${\mathbb{Z}}_{2}$ topological metals $R$V$_3$Sb$_5$ ($R$ = K, Rb, Cs) with a layered kagome structure provide a unique opportunity to investigate the interplay between charge order, superconductivity and topology. Here, we report…

We report the results of muon spin rotation and relaxation ($\rm \mu$SR) measurements on the recently discovered layered Cu-based superconducting material La$_{2}($Cu$_{1-x}$Ni$_{x}$)$_{5}$As$_{3}$O$_{2}$ ($x =$ 0.40, 0.45).…

Superconductivity · Physics 2023-10-02 Qiong Wu , Kaiwen Chen , Zihao Zhu , Cheng Tan , Yanxing Yang , Xin Li , Toni Shiroka , Xu Chen , Jiangang Guo , Xiaolong Chen , Lei Shu

The recent discovery of the topologically protected surface states in the beta-phase of PdBi2 has reignited the research interest in this class of superconductors. Here, we show results of our muon spin relaxation and rotation (muSR)…

We report zero-field muon spin rotation and relaxation measurements on the superconducting ferromagnet UCoGe. Weak itinerant ferromagnetic order is detected by a spontaneous muon spin precession frequency below the Curie temperature $T_C =…

Superconductivity · Physics 2015-05-13 A. de Visser , N. T. Huy , A. Gasparini , D. E. de Nijs , D. Andreica , C. Baines , A. Amato

The recently discovered (Ba,Sr)Ni$_2$As$_2$ family provides an ideal platform for investigating the interaction between electronic nematicity and superconductivity. Here we report the muon spin relaxation ($\mu$SR) measurements on…

Superconductivity · Physics 2024-01-10 Kaiwen Chen , Zihao Zhu , Yaofeng Xie , Adrian D. Hillier , James S. Lord , Pengcheng Dai , Lei Shu

The superconducting state of the caged type compound Lu$_5$Rh$_6$Sn$_{18}$ has been investigated by using magnetization, heat capacity, and muon-spin relaxation or rotation ($\mu$SR) measurements and the results interpreted on the basis of…

Superconductivity · Physics 2015-06-23 A. Bhattacharyya , D. T. Adroja , J. Quintanilla , A. D. Hillier , N. Kase , A. M. Strydom , J. Akimitsu

We present a comprehensive study on superconducting properties of Re$_7$B$_3$ and Re$_3$B through specific heat, magnetic susceptibility, resistivity, and transverse and zero-field muon spin rotation/relaxation ($\mu$SR) experiments on…

Superconductivity · Physics 2021-08-19 S. Sharma , Arushi , K. Motla , J. Beare , M. Nugent , M. Pula , T. J. Munsie , A. D. Hillier , R. P. Singh , G. M. Luke

We report muon spin relaxation measurements on the superconductor Sr2RuO4 that reveal the spontaneous appearance of an internal magnetic field below the transition temperature: the appearance of such a field indicates that the…

Superconductivity with non-trivial band topology provides a novel platform for exploring topological superconductivity and its quantum applications. A detailed microscopic understanding of the superconducting ground state in such materials…

CaSb$_2$ is a bulk superconductor and a topological semimetal, making it a great platform for realizing topological superconductivity. In this work, we investigate the superconducting upper and lower critical field anisotropy using magnetic…

Superconductivity · Physics 2024-05-31 M. Oudah , Y. Cai , M. V. De Toro Sanchez , J. Bannies , M. C. Aronson , K. M. Kojima , D. A. Bonn

Superconductivity in materials whose crystal structure lacks inversion symmetry is a prime candidate for unconventional superconductivity. A new noncentrosymmetric compound Zr$_{3}$Ir crystallizes in a tetragonal $ \alpha $-V$_{3} $S…

Superconductivity · Physics 2019-10-08 Sajilesh. K. P. , D. Singh , P. K. Biswas , Gavin B. G. Stenning , A. D. Hillier , R. P. Singh

The valence-skipped superconductors are natural candidates for unconventional superconductivity, as they can exhibit a negative effective, attractive interaction for electron-pairing. This work reports comprehensive XRD, magnetization,…

Superconductivity · Physics 2023-05-31 A. Kataria , Arushi , S. Sharma , T. Agarwal , M. Pula , J. Beare , S. Yoon , Y. Cai , K. M. Kojima , G. M. Luke , R. P. Singh

Noncentrosymmetric superconductors can lead to a variety of exotic properties in the superconducting state such as line nodes, multigap behavior, and time-reversal symmetry breaking. In this paper, we report the properties of the new…

Superconductivity · Physics 2020-01-08 D. Singh , Sajilesh K. P , Sourav Marik , P. K. Biswas , A. D. Hillier , R. P. Singh

We investigated the superconducting state of the noncentrosymmetric superconductors Li$_2$Pd$_x$Pt$_{3-x}$B with superconducting transition temperature $T_c$= 5.16(8) K ($x$=2.25), 3.56(8) K ($x=1.5$) and 2.60 K ($x=0$) by means of…

We report low-temperature muon spin relaxation/rotation (muSR) measurements on single crystals of the actinide superconductor UTe2. Below 5 K we observe a continuous slowing down of magnetic fluctuations that persists through the…

Single crystals of NbGe$_{2}$ which crystallize in a noncentrosymmetric hexagonal structure with chirality are synthesized and their superconductivity is investigated. Type-I superconductivity is confirmed by dc magnetization, field-induced…

Superconductivity · Physics 2020-08-26 Baijiang Lv , Miaocong Li , Jia Chen , Yusen Yang , Siqi Wu , Lei Qiao , Feihong Guan , Hui Xing , Qian Tao , Guang-Han Cao , Zhu-An Xu

Muon spin rotation/relaxation ($\mu$SR) and polar Kerr effect measurements provide evidence for a time-reversal symmetry breaking (TRSB) superconducting state in Sr$_2$RuO$_4$. However, the absence of a cusp in the superconducting…

The recently discovered superconductivity with critical temperature $T_c$ up to 80 K in the double-layer Nickelate La$_3$Ni$_2$O$_{7-\delta}$ under pressure has drawn great attention. Here we report the positive muon spin relaxation…

Strongly Correlated Electrons · Physics 2024-05-14 Kaiwen Chen , Xiangqi Liu , Jiachen Jiao , Muyuan Zou , Yixuan Luo , Qiong Wu , Ningyuan Zhang , Yanfeng Guo , Lei Shu