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The superconductor PdTe$_2$ was recently classified as a Type II Dirac semimetal, and advocated to be an improved platform for topological superconductivity. Here we report magnetic and transport measurements conducted to determine the…

超导电性 · 物理学 2017-12-27 H. Leng , C. Paulsen , Y. K. Huang , A. de Visser

We report on the microscopic superconducting properties of the Dirac semimetal PdTe2. In this study, we have focused on mosaic crystals of PdTe2, and used detailed zero field and transverse field muon spin relaxation/rotation ($\mu$SR),…

超导电性 · 物理学 2026-04-14 Ritu Gupta , Catherine Witteveen , Debarchan Das , Fabian O. von Rohr , Rustem Khasanov

Two-dimensional transition metal dichalcogenide PdTe$_2$ recently attracts much attention due to its phase coexistence of type-II Dirac semimetal and type-I superconductivity. Here we report a 67 % enhancement of superconducting transition…

超导电性 · 物理学 2021-03-02 Wenhao Liu , Sheng Li , hanlin Wu , Nikhil Dhale , Pawan Koirala , Bing Lv

The type II Dirac semimetal PdTe$_2$ is unique in the family of topological parent materials because it displays a superconducting ground state below 1.7 K. Despite wide speculations on the possibility of an unconventional topological…

The type-II Dirac semimetal PdTe2 was recently reported to be a type-I superconductor with a superconducting transition temperature Tc = 1.65 K. However, the recent results from tunneling and point contact spectroscopy suggested the unusual…

The transition metal dichalcogenide PdTe$_2$ was recently shown to be a unique system where a type II Dirac semimetallic phase and a superconducting phase co-exist. This observation has led to wide speculation on the possibility of the…

超导电性 · 物理学 2018-01-31 Shekhar Das , Amit , Anshu Sirohi , Lalit Yadav , Sirshendu Gayen , Yogesh Singh , Goutam Sheet

Transition metal dichalcogenides (TMDs) usually show simple structures, however, with interesting properties. Recently some TMDs have been pointed out as type-II Dirac semimetals. In the present work, we investigate the physical properties…

By substituting Fe with the 5d-transition metal Pt in BaFe2As2, we have successfully synthesized the superconductors BaFe2-xPtxAs2. The systematic evolution of the lattice constants indicates that the Fe ions were successfully replaced by…

超导电性 · 物理学 2015-05-18 Xiyu Zhu , Fei Han , Gang Mu , Jun Tang , Jing Ju , Katsumi Tanigaki , Hai-Hu Wen

The transition metal dichalcogenide PdTe$_2$ has attractive features based on its classification as a type-II Dirac semimetal and the occurrence of type-I superconductivity, providing a platform for discussion of a topological…

We report that the isovalent Rh doping of IrTe2 suppresses the structural/electronic phase transition and induces superconductivity at 2.6 K. The doping level of Rh that is necessary for suppressing the transition is three times higher than…

超导电性 · 物理学 2013-07-17 Kazutaka Kudo , Masakazu Kobayashi , Sunseng Pyon , Minoru Nohara

By using solid state reaction method, we have synthesized the Pd-doped superconductor SrFe2-xPdxAs2. The systematic evolution of the lattice constants indicated that the Fe ions were successfully replaced by the Pd. By increasing the doping…

超导电性 · 物理学 2016-06-28 Xiyu Zhu , Fei Han Peng Cheng , Bing Shen , Hai-Hu Wen

We report an unusual evolution of superconductivity (SC) in the three-dimensional Dirac semimetal PdTe with increasing pressure up to $\sim$50 GPa. The compressed PdTe exhibits a sudden reversal in the superconducting transition temperature…

We use electrical transport, magnetoresistance, and heat capacity measurements on high quality single crystals of the recently discovered superconducting Type-II Dirac semi-metal PdTe$_2$, to probe the nature of it's superconducting phase.…

超导电性 · 物理学 2018-01-11 Amit , Yogesh Singh

Superconductivity in the topological non-trivial Dirac semimetal PdTe$_2$ was recently shown to be type-I. We here report measurements of the relative magnetic penetration depth, $ \Delta \lambda$, on several single crystals using a high…

超导电性 · 物理学 2018-12-05 M. V. Salis , P. Rodière , H. Leng , Y. K. Huang , A. de Visser

We report our point-contact spectroscopy (PCS) study on the superconducting state of the type-II Dirac semimetal PdTe$_2$ with a superconducting transition temperature $T\rm_c \sim$ 1.65 K. Both mechanical- and soft- PCS differential…

超导电性 · 物理学 2019-06-04 Tian Le , Lichang Yin , Zili Feng , Qi Huang , Liqiang Che , Jie Li , Youguo Shi , Xin Lu

Though the superconducting phase of the type-II Dirac semimetal PdTe$_2$ was shown to be conventional in nature, the phase continued to be interesting in terms of its magnetic properties. While certain experiments indicated an unexpected…

超导电性 · 物理学 2020-01-29 Aastha Vasdev , Anshu Sirohi , M. K. Hooda , C. S Yadav , Goutam Sheet

We report the impact of Ni doping on superconductivity of PdTe superconductor. The superconducting parameters like critical temperature (Tc), upper critical field (Hc2) and normalized specific-heat jump are reported for Ni doped Pd1-xNixTe.…

超导电性 · 物理学 2015-09-04 Rajveer Jha , Reena Goyal , Brajesh Tiwari , V. P. S. Awana

The Dirac semimetal PdTe$_2$ was recently reported to be a type-I superconductor with $T_c = 1.64$ K and a critical field $\mu_0H_c = 13.6$ mT. Since type-I superconductivity is unexpected for binary compounds, we have conducted muon spin…

强关联电子 · 物理学 2019-12-11 Huaqian Leng , Jean-Christophe Orain , Alex Amato , Yingkai Huang , Anne de Visser

We report superconductivity in single crystals of the new iron-pnictide system BaFe1.9Pt0.1As2 grown by a self-flux solution method and characterized via x-ray, transport, magnetic and thermodynamic measurements. The magnetic ordering…

超导电性 · 物理学 2010-02-04 S. R. Saha , T. Drye , K. Kirshenbaum , N. P. Butch , P. Y. Zavalij , Johnpierre Paglione

Varying the superconducting transition temperature over a large scale of a cuprate superconductor is a necessary step for identifying the unsettled mechanism of superconductivity. Chemical doping or element substitution has been proven to…

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