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Related papers: In-plane magnetic penetration depth in NbS$_{2}$

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The superfluid density and superconducting gaps of superconducting RbFe_{2}As_{2} have been determined as a function of temperature, magnetic field and hydrostatic pressure by susceptibility and muon-spin spectroscopy measurements. From the…

Superconductivity · Physics 2012-11-26 Z. Shermadini , H. Luetkens , A. Maisuradze , R. Khasanov , Z. Bukowski , H. -H. Klauss , A. Amato

We report the out-of-plane resistivity in the systematically oxygen-controlled single crystals Bi$_{1.74}$Pb$_{0.38}$Sr$_{1.88}$CuO$_{6+\delta}$ in magnetic fields parallel to the c-axis. Two characteristic temperatures $T^*$ and $T^{**}$…

Superconductivity · Physics 2007-05-23 K. Kudo , Y. Miyoshi , T. Sasaki , N. Kobayashi

Experimental determination of the structure of the superconducting order parameter in the kagome lattice compound CsV$_3$Sb$_5$ is an essential step towards understanding the nature of the superconducting pairing in this material. Here we…

Superconductivity · Physics 2024-11-11 Morgan J Grant , Yi Liu , Guang-Han Cao , Joseph A Wilcox , Yanfeng Guo , Xiaofeng Xu , Antony Carrington

Temperature dependence of the London penetration depth $\lambda$ measured in single crystals of CeCoIn$_5$ is interpreted as caused by a strong pair-breaking scattering that makes the superconductivity in this compound gapless. For a…

Superconductivity · Physics 2007-12-12 V. G. Kogan , R. Prozorov , C. Petrovic

The ab-plane thermal conductivity $\kappa$ of single-crystalline hexagonal MgB_2 has been measured as a function of magnetic field H with orientations both parallel and perpendicular to the c-axis and at temperatures between 0.5 and 300 K.…

Superconductivity · Physics 2009-11-07 A. V. Sologubenko , J. Jun , S. M. Kazakov , J. Karpinski , H. R. Ott

In-plane microwave penetration depth $\lambda_{ab}$ and quaiparticle conductivity at 28 GHz are measured in underdoped single crystals of the Fe-based superconductor PrFeAsO$_{1-y}$ ($T_c\approx 35$ K) by using a sensitive superconducting…

Using both muon spin rotation and muon spin relaxation, the superconducting ground state of the Heusler superconductor {ZrNi$_2$Ga} has been studied. The temperature dependence of the magnetic penetration depth of {ZrNi$_2$Ga} is consistent…

Superconductivity · Physics 2012-06-07 A. D. Hillier , N. Parzyk , D. Mck Paul

The half-Heusler compounds YPdBi and TbPdBi, while having similar band structure, exhibit different magnetic properties. YPdBi is a diamagnet, while TbPdBi shows antiferromagnetic order below 5.5 K. Both are superconductors with…

Superconductivity · Physics 2019-01-02 S. M. A. Radmanesh , C. Martin , Yanglin Zhu , X. Yin , H. Xiao , Z. Q. Mao , L. Spinu

We report a characterization of surfaces of the dichalcogenide TaSe$_2$ using scanning tunneling microscopy and spectroscopy (STM/S) at 150 mK. When the top layer has the 2H structure and the layer immediately below the 1T structure, we…

We calculate the penetration depth $\lambda$ in the $a$, $b$ and $c$ directions for a simple model of YBa$_2$Cu$_3$O$_7$. In this model there are two layers---representing a CuO$_2$ plane and a CuO chain---per unit cell. There is a…

Condensed Matter · Physics 2009-10-28 W. A. Atkinson , J. P. Carbotte

We report results of microwave surface impedance measurements of LiFeAs single crystals. The in-plane penetration depth depends on temperature exponentially at low temperatures, which strongly suggests that this material has the nodeless…

Low-temperature thermal conductivity measurements were performed on single crystals of TlNi$_2$Se$_2$, a nickel-chalcogenide heavy-electron superconductor with $T_c$ $\simeq$ 3.7 K. In zero field, the residual electronic contribution at $T$…

Superconductivity · Physics 2015-06-22 X. C. Hong , Z. Zhang , S. Y. Zhou , J. Pan , Y. Xu , Hangdong Wang , Qianhui Mao , Minghu Fang , J. K. Dong , S. Y. Li

At T_c-T<<T_c(i.e., near T_c), in order to demonstrate the condudction mechanism and temperature dependencies of the diamagnetic-shielding susceptibility and the penetration depth, we fabricated Ba_1_xBiO_3(BKBO) thin films and measured the…

Superconductivity · Physics 2018-07-04 Hyun-Tak Kim , Kwang-Yong Kang , Seok-Kil Han

Experimental support is found for the multiband model of the superconductivity in the recently discovered system MgB2 with the transition temperature Tc = 39 K. By means of Andreev reflection evidence is obtained for two distinct…

Superconductivity · Physics 2009-02-12 P. Szabo , P. Samuely , J. Kacmarcik , Th. Klein , J. Marcus , D. Fruchart , S. Miraglia , C. Marcenat , A. G. M. Jansen

The temperature dependence of the London penetration depth ($\lambda$) and coherence length ($\xi$) has been deduced from Hall probe magnetization measurements in high quality MgB$_2$ single crystals in the two main crystallographic…

Superconductivity · Physics 2009-11-10 L. Lyard , P. Szabo , T. Klein , J. Marcus , C. Marcenat , B. W. Kang , K. H. Kim , H. S. Lee , S. I. Lee

Many atomically thin exfoliated 2D materials degrade when exposed to ambient conditions. They can be protected and investigated by means of transport and optical measurements if they are encapsulated between chemically inert single layers…

Single crystals of superconducting OsB_2 [T_c = 2.10(5) K] have been grown using a Cu-B eutectic flux. We confirm that OsB_2 crystallizes in the reported orthorhombic structure (space group Pmmn) at room temperature. Both the normal and…

Superconductivity · Physics 2010-11-17 Yogesh Singh , C. Martin , S. L. Bud'ko , A. Ellern , R. Prozorov , D. C. johnston

We show a hard induced superconducting gap in a Ge-Si nanowire Josephson transistor up to in-plane magnetic fields of $250$ mT, an important step towards creating and detecting Majorana zero modes in this system. A hard induced gap requires…

London, $\lambda_L (T)$, and Campbell, $\lambda_{C} (T)$, penetration depths were measured in single crystals of a topological superconductor candidate $\text{AuSn}_4$. At low temperatures, $\lambda_L (T)$ is exponentially attenuated and,…

We present extensive Scanning Tunneling Spectroscopy (STM/S) measurements at low temperatures in the multiband superconductor MgB$_2$. We find a similar behavior in single crystalline samples and in single grains, which clearly shows the…

Superconductivity · Physics 2009-11-07 P. Martinez-Samper , J. G. Rodrigo , G. Rubio-Bollinger , H. Suderow , S. Vieira , S. Lee , S. Tajima