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Related papers: Puzzling behavior of hydrated YBCO

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We carry out local three dimensional (3D) hydrodynamic simulations of planet-disk interaction in stratified disks with varied thermodynamic properties. We find that whenever the Brunt-Vaisala frequency (N) in the disk is nonzero, the planet…

Earth and Planetary Astrophysics · Physics 2015-06-11 Zhaohuan Zhu , James M. Stone , Roman R. Rafikov

We report neutron scattering experiments performed to investigate the dynamic magnetic properties of the Kondo-lattice compound YbNi2B2C. The spectrum of magnetic excitations is found to be broad, extending up to at least 150 meV, and…

Strongly Correlated Electrons · Physics 2009-11-07 A. T. Boothroyd , J. P. Barratt , P. Bonville , P. C. Canfield , A. Murani , A. R. Wildes , R. I. Bewley

We directly measured the interactions between a hydrophobic solid and a hydrophobic liquid separated by water using force spectroscopy, where colloidal probes were coated with graphene oxide (GO) to interact with immobilized heptane…

Soft Condensed Matter · Physics 2023-12-27 Avishi Abeywickrama , Douglas H. Adamson , Hannes C. Schniepp

Inelastic neutron scattering has been used to determine the dynamic spin fluctuations in an underdoped high temperature superconductor YBCO_{6.8} single crystal. The magnetic resonance, that occurs around 40 meV in overdoped samples, is…

Superconductivity · Physics 2016-08-31 Ph. Bourges , L. P. Regnault , Y. Sidis , J. Bossy , P. Burlet , C. Vettier , J. Y. Henry , M. Couach

In this paper, we present a detailed investigation of the self-field transport properties of an ionic liquid gated ultra-thin YBa$_2$Cu$_3$O$_{7-x}$ film. From the high temperature dynamic of the resistivity ($> 220 \textrm{ K}$) different…

Superconductivity · Physics 2016-11-17 A. Fête , L. Rossi , A. Augieri , C. Senatore

A discussion on the interaction between skyrmions in a bi-layer system connected by a non-magnetic metal is presented. From considering a free charge carrier model, we have shown that the Ruderman-Kittel-Kasuya-Yosida (RKKY ) inter- action…

Mesoscale and Nanoscale Physics · Physics 2018-12-05 R. Cacilhas , S. Vojkovic , V. L. Carvalho-Santos , E. B. Carvalho , A. R. Pereira , D. Altbir , Á. S. Núñez

We report a comprehensive investigation of the structural and magnetic properties of Na$_5$Yb(MoO$_4$)$_4$, a member of the stretched diamond magnetic lattice family. Neutron powder diffraction at 3.3~K confirms that the compound…

We have studied the frustrated system YBaCo4O7 generally described as an alternating stacking of Kagome and triangular layers of magnetic ions on a trigonal lattice, by single crystal neutron diffraction experiments above the Neel ordering…

Materials Science · Physics 2011-06-30 P. Manuel , L. C. Chapon , P. G. Radaelli , H. Zheng , J. F. Mitchell

We present a magnetization study of low density YBCO ceramics carried out in magnetic fields 0.5 Oe < H < 50 kOe. It was demonstrated that superconducting links between grains may be completely suppressed either by a magnetic field of the…

Superconductivity · Physics 2008-02-19 I. L. Landau , J. B. Willems , J. Hulliger

We present the 1.9--4.2um spectra of the five bright (L<11.2) young stars associated with silhouette disks with moderate to high inclination angle of 39--80deg in the M42 and M43 regions. The water ice absorption is seen toward d121-1925…

Earth and Planetary Astrophysics · Physics 2015-06-04 Hiroshi Terada , Alan T. Tokunaga

X-ray photoemission spectroscopy has been used to investigate the depth dependent crystal structures and chemical compositions of sequentially chemical-etched YBa2Cu3O7-d (YBCO) ultrathin film superconductors. In the near-interface region…

Materials Science · Physics 2007-05-23 H. W. Seo , Q. Y. Chen , Paul van der Heide , Wei-Kan Chu

Superconducting thick films (200$\mu$m-300$\mu$m) of YBCO have been fabricated successfully on MgO substrates by a new approach. The precursor powders (YBa2Cu3O7-$\delta$(Y123)+0.1molY2BaCuO5(Y211)) are placed between two MgO (10mm x 10mm)…

Superconductivity · Physics 2007-05-23 Y. B. Zhu , J. W. Xiong , S. F. Wang , Y. L. Zhou , Q. Zhang , S. Y. Dai , Z. H. Chen , H. B. Lu , G. Z. Yang

The flow of a liquid crystal around a particle does not only depend on its shape and the viscosity coefficients but also on the direction of the molecules. We studied the resulting drag force on a sphere moving in a nematic liquid crystal…

Condensed Matter · Physics 2009-10-28 R. W. Ruhwandl , E. M. Terentjev

Y$_2$Co$_3$ is a newly discovered antiferromagnetic (AFM) compound with distorted kagome layers. Previous investigations via bulk magnetization measurements suggested a complex noncollinear magnetic behavior, with magnetic moments primarily…

We investigate the response of an accretion disk to the presence of a perturbing protoplanet embedded in the disk through time dependent hydrodynamical simulations. The disk is treated as a two-dimensional viscous fluid and the planet is…

Astrophysics · Physics 2009-11-11 Wilhelm Kley , Gerben Dirksen

The electronic band structures of the parent compound Na0.3CoO2 and the hydrated superconductor Na0.3CoO2.1.3H2O were evaluated using the local spin density approximation (LSDA). Systematic analysis on the bands near the Fermi surface (FS)…

Superconductivity · Physics 2009-11-11 R. J. Xiao , H. X. Yang , J. Q. Li

We calculate the ionisation fraction in protostellar disk models using two different gas-phase chemical networks, and examine the effect of turbulent mixing by modelling the diffusion of chemical species vertically through the disk. The aim…

Astrophysics · Physics 2009-11-11 Martin Ilgner , Richard P. Nelson

We report on the depression of the superconducting critical temperature of ultra thin YBa2Cu3O7 (YBCO) layers, when their thickness is reduced in presence of La0.7Ca0.3MnO3 (LCMO) magnetic layers in [LCMO (15 u.c.)/ YBCO(N u.c.)]…

Single crystals of NaxCoO2 with beta-phase (x=0.55, 0.60 and 0.65), alpha'-phase (x=0.75) and alpha-phase (x=0.9, 1.0) have been grown by the floating zone technique. The Na-extraction and hydration were carried out for the alpha'-sample to…

Strongly Correlated Electrons · Physics 2022-05-31 C. T. Lin , D. P. Chen , P. Lemmens , X. N. Zhang , A. Maljuk , P. X. Zhang

We present a molecular dynamics study of the contact between a rigid solid with a randomly rough surface and an elastic block with a flat surface. The numerical calculations mainly focus on the contact area and the interfacial separation…

Soft Condensed Matter · Physics 2008-05-08 C. Yang , B. N. J. Persson