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相关论文: Superconducting behavior of the solid solution, Y2…

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The study of interaction between different degrees of freedom in solids is of fundamental importance to understand the functionalities of materials. One striking example of such interaction is the intertwined coupling or competition between…

Chemical doping of topological materials may provide a possible route for realizing topological superconductivity. However, all such cases known so far are based on chalcogenides. Here we report the discovery of superconductivity induced by…

超导电性 · 物理学 2020-11-02 Jifeng Wu , Chenqiang Hua , Bin Liu , Yanwei Cui , Qinqing Zhu , Guorui Xiao , Siqi Wu , Guanghan Cao , Yunhao Lu , Zhi Ren

We present new measurements of the thermal conductivity of UPt3 down to very low temperatures (16mK) and under magnetic fields (up to 4 T) which cover all the superconducting phases of UPt3. The measurements in zero field are compared with…

强关联电子 · 物理学 2009-10-30 H. Suderow , J. P. Brison , A. Huxley , J. Flouquet

The abundant chemical compositions in ternary hydrides bring much more possibility to explore high temperature superconductors under lower pressure. Here we constructed 115 ternary hydrides on the basis of the elements substitution using 16…

超导电性 · 物理学 2024-11-19 Bangshuai Zhu , Dexi Shao , Cuiying Pei , Qi Wang , Juefei Wu , Yanpeng Qi

We report temperature (T) dependence of dc magnetization, electrical resistivity (rho(T)), and heat-capacity of rare-earth (R) compounds, Gd3RuSn6 and Tb3RuSn6, which are found to crystallize in the Yb3CoSn6-type orthorhombic structure…

强关联电子 · 物理学 2017-06-28 Sanjay K Upadhyay , Kartik K Iyer , E. V. Sampathkumaran

We report an investigation of the London penetration depth $\Delta\lambda(T)$ on single crystals of the layered superconductor Ta$_4$Pd$_3$Te$_{16}$, where the crystal structure has quasi-one-dimensional characteristics. A linear…

超导电性 · 物理学 2018-01-15 G. M. Pang , M. Smidman , W. H. Jiao , L. Jiao , Z. F. Weng , W. B. Jiang , C. Y. Guo , Y. Chen , G. H. Cao , H. Q. Yuan

Hydrogenation of MgB_2 powder has lead to an increase in the superconducting temperature, as determined by ac susceptibility. Applied dc fields reduce the transition temperature in the same ratio as for the pure powder.

超导电性 · 物理学 2007-05-23 V. V. Flambaum , G. A. Stewart , G. J. Russell , J. Horvat , S. X. Dou

The influence of positive and negative chemical pressure on the magnetic behavior of the compound, Ce2RhSi3, crystallizing in a AlB2-derived hexagonal structure and ordering antiferromagnetically around (TN = 7 K), is investigated by…

材料科学 · 物理学 2007-05-23 Kausik Sengupta , S. Rayaprol , E. V. Sampathkumaran

We study the magnetic field vs temperature ($H$--$T$) and pressure vs temperature ($P$--$T$) phase diagram of the $T_c \approx 5.5$~K superconducting phase in Pd$_x$Bi$_2$Te$_3$ ($x \approx 1$) using electrical resistivity versus…

超导电性 · 物理学 2016-03-29 Amit , Yogesh Singh

Superconductivity in topological quantum materials is much sought after as it represents the key avenue to searching for topological superconductors, which host a full pairing gap in the bulk but Majorana bound states at the surface. To…

超导电性 · 物理学 2021-09-23 C. Q. Xu , B. Li , L. Zhang , J. Pollanen , X. L. Yi , X. Z. Xing , Y. Liu , J. H. Wang , Zengwei Zhu , Z. X. Shi , Xiaofeng Xu , X. Ke

We have synthesized polycrystalline samples of Pt-substituted SrFe2As2 and measured the temperature dependence of magnetization and electrical resistivity. We have observed the superconducting transition at Tc = 17 K with the maximum…

超导电性 · 物理学 2015-05-19 Yoshihiro Nishikubo , Satomi Kakiya , Masataka Danura , Kazutaka Kudo , Minoru Nohara

We investigated the low-temperature properties of polycrystalline HoNi_2^11B_2C by means of ac-susceptibility and neutron powder diffraction in the temperature range of 1.5 to 10 K and zero magnetic field. A sample with pronounced…

The influence of the hydrostatic pressure P up to 0.95 GPa on the excess conductivity and the pseudogap {\Delta}*(T) in optimally doped YBCO single crystals (T_c = 91.1K at ambient pressure) is investigated by electrical resistivity…

The effect of hydrostatic pressure on the superconducting transition temperature of Na{0.35}CoO{2}.yH{2}O was investigated by ac susceptibility measurements up to 1.6 GPa. The pressure coefficient of T{c} is negative and the dependence…

超导电性 · 物理学 2009-11-10 B. Lorenz , J. Cmaidalka , R. L. Meng , C. W. Chu

As a new type of topological materials, ZrTe5 shows many exotic properties under extreme conditions. Utilizing resistance and ac magnetic susceptibility measurements under high pressure, while the resistance anomaly near 128 K is completely…

The recently discovered Dirac and Weyl semimetals are new members of topological materials. Starting from them, topological superconductivity may be achieved, e.g. by carrier doping or applying pressure. Here we report high-pressure…

超导电性 · 物理学 2016-09-27 L. P. He , Y. T. Jia , S. J. Zhang , X. C. Hong , C. Q. Jin , S. Y. Li

Highly dense MgB2 policrystalline bulk materials, obtained by reactive liquid infiltration, have been characterized in their superconducting transport and magnetic properties in magnetic field and in a temperature range of interest for the…

超导电性 · 物理学 2007-05-23 G. Giunchi , S. Ceresara , L. Martini , V. Ottoboni , S. Chiarelli , M. Spadoni

Superconductivity in low-dimensional compounds has long attracted much interest. Here we report superconductivity in a low-dimensional ternary telluride Ta4Pd3Te16 in which the repeating layers contain edge-sharing octahedrally-coordinated…

超导电性 · 物理学 2014-11-26 Wen-He Jiao , Zhang-Tu Tang , Yun-Lei Sun , Yi Liu , Qian Tao , Chun-Mu Feng , Yue-Wu Zeng , Zhu-An Xu , Guang-Han Cao

The results of dc magnetization, electrical and magnetoresistance and heat capacity measurements (2-300 K) on Tb7Rh3, crystallizing in Th7Fe3-type hexagonal structure, are reported. In this compound, magnetic ordering sets in around 90 K…

强关联电子 · 物理学 2022-04-26 Kausik Sengupta , Kartik K Iyer , E. V. Sampathkumaran

The physical properties and structural evolution of the 122-type solid solution BaNi2(Ge1-xPx)2 are reported. The in-plane X-X (X = Ge1-xPx) dimer formation present in the end member BaNi2Ge2, which results in a structural transition to…

超导电性 · 物理学 2012-09-20 Daigorou Hirai , F. von Rohr , R. J. Cava