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Related papers: Superconductivity in La1.85Sr0.15CuO4 Ceramic Samp…

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We present new x-ray and neutron scattering measurements of stripe order in La(1.875)Ba(0.125)CuO(4), along with low-field susceptibility, thermal conductivity, and specific heat data. We compare these with previously reported results for…

It is shown that the application of sufficiently strong magnetic field to the odd-frequency paired Pair Density Wave state described in Phys. Rev. B 94, 165114 (2016) leads to formation of a low temperature metallic state with zero Hall…

Superconductivity · Physics 2019-09-04 A. M. Tsvelik

Samples of Y0.4Pr0.6Ba2-xSrxCu3O7 have been synthesized by a solid- state reaction route. The samples with x = 0.60 crystallize in an orthorhombic structure (with orthorhombic distortion decreasing with increasing x), while the samples with…

Superconductivity in the pseudo-binary pnictides Ru0.55Rh0.45P and Ru0.75Rh0.25As is probed by muon spin relaxation and rotation (muSR) measurements in conjuction with magnetic susceptibility, heat capacity and electrical resistivity…

Superconductivity · Physics 2019-01-30 V. K. Anand , D. T. Adroja , M. R. Lees , P. K. Biswas , A. D. Hillier , B. Lake

The interplay between superconducting fluctuations and inhomogeneities presents a renewed interest due to recent works supporting an anomalous [beyond the conventional Gaussian-Ginzburg-Landau (GGL) scenario] diamagnetism above Tc in…

Superconductivity · Physics 2015-06-03 Jesús Mosqueira , Javier D. Dancausa , Félix Vidal

We report the superconductivity in layered oxychalcogenide La2O2Bi3AgS6 compound. The La2O2Bi3AgS6 compound has been reported recently by our group, which has a tetragonal structure with the space group P4/nmm. The crystal structure of…

Superconductivity · Physics 2018-07-30 Rajveer Jha , Yosuke Goto , Ryuji Higashinaka , Tatsuma D. Matsuda , Yuji Aoki , Yoshikazu Mizuguchi

We demonstrated the lattice structures and the superconducting phases of metallic double-chain based cuprate Pr2Ba4Cu7O15-delta exhibiting higher Tc. After the oxygen heat treatment on citrate pyrolysis precursors, their reduction treatment…

The samples of composition RuSr2(Ln3/4Ce1/4)2Cu2O10 with Ln = Ho, Y and Dy. being synthesized by high pressure high temperature (6Gpa, 1200 0C) solid state synthesis route do crystallize in space group I4/mmm. These samples exhibit magnetic…

Superconductivity · Physics 2009-11-07 V. P. S. Awana , E. Takayama-Muromachi

Members of the CaK(Fe$_{1-x}$Mn$_{x}$)$_{4}$As$_{4}$ series have been synthesized in single crystalline form and characterized by elemental analysis, thermodynamic and transport measurements. These measurements show that the superconducting…

Superconductivity · Physics 2023-02-10 M. Xu , J. Schmidt , E. Gati , L. Xiang , W. R. Meier , V. G. Kogan , S. L. Bud'ko , P. C. Canfield

The compound HgBa$_2$CuO$_{4+\Delta}$ (Hg1201) exhibits a simple tetragonal crystal structure and the highest superconducting transition temperature (T$_c$) among all single Cu-O layer cuprates, with T$_c$ = 97 K (onset) at optimal doping.…

Here we report a structural phase transition and its possible competition with superconductivity in the suboxide La$_5$Pb$_3$O. Upon cooling through $T_t$ = 225 K, La$_5$Pb$_3$O transforms from a high-temperature I4/mcm to a low-temperature…

La3Co4Sn13 is a superconducting material with transition temperature at Tc = 2.70 K, which presents a superlattice structural transition at T* ~ 150 K, a common feature for this class of compounds. However, for this material, it is not…

We have performed muon spin relaxation and low field ac-susceptibility measurements in a series of high quality samples of La_{2-x}Sr_xCuO_4 (x=0.08-0.24) as a function of temperature. Superconductivity is found to coexist with low…

Superconductivity · Physics 2015-06-24 C. Panagopoulos , B. D. Rainford , J. R. Cooper , C. A. Scott

We report the resistivity, magnetization and 19^F NMR results in polycrystalline sample of SmFeAsO_(0.86)F_(0.14). The resistivity and the magnetization data show a sharp drop at 48 K indicating the superconducting transition. The nuclear…

Superconductivity · Physics 2012-11-20 M. Majumder , K. Ghoshray , C. Mazumdar , A. Poddar , A. Ghoshray , D. Berardan , N. Dragoe

Bulk samples of MgB2 have been formed by hot isostatic pressing (HIPping) of commercial powder at 100MPa and 950=B0C. The resulting material is 100% dense with a sharp superconducting transition at 37.5K. Microstructural studies have…

Superconductivity · Physics 2009-11-07 T C Shields , K Kawano , D Holdom , J S Abell

In this manuscript, we report room temperature structural, microstructural, optical, dielectric, and magnetic properties of CuO and Cu0.995La0.005 ceramics, synthesized by solid-state reaction method. La doping in CuO leads to the evolution…

Materials Science · Physics 2022-01-03 Kumar Brajesh , Sudhir Ranjan , Rajeev Gupta , Ambesh Dixit , Ashish Garg

Muon spin relaxation ($\mu$SR) measurements on the new layered cobalt oxide superconductor Na$_{0.35}$CoO$_{2}\cdot$1.3H$_{2}$O and its parent, non-superconducting compounds, have revealed unconventional nature of superconductivity through:…

We use spatially-resolved transport techniques to investigate the superconducting properties of single crystals La$_{2-x}$Ba$_x$CuO$_4$. We find a new superconducting transition temperature $T_{cs}$ associated with the ab-plane surface…

Superconductivity · Physics 2017-03-01 X. Y. Tee , T. Ito , T. Ushiyama , Y. Tomioka , I. Martin , C. Panagopoulos

Magnetic nanomaterials (23-43 nm) of Cu$_x$Co$_{1-x}$Fe$_2$O$_4$\ (x = 0.0, 0.5 and 1.0) were synthesized by auto combustion method. The crystallite sizes of these materials were calculated from X-ray diffraction peaks. The band observed in…

Materials Science · Physics 2011-11-22 S. Muthurani , M. Balaji , Sanjeev Gautam , Keun Hwa Chae , J. H. Song , D. Pathinettam Padiyan , K. Asokan

Studying superconductivity in Dirac semimetals is an important step in understanding quantum matter with topologically non-trivial order parameters. We report on the properties of the superconducting phase in single crystals of the Dirac…