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To examine the electronic phase diagram of superconducting CuO double chains, we report the effect of external pressure on the magneto-transport properties in superconducting and non-superconducting polycrystalline samples of…

Superconductivity · Physics 2016-11-23 Masayoshi Kuwabara , Michiaki Matsukawa , Keisuke Sugawara , Haruka Taniguchi

Superparamagnetism in nanoscale magnetic layers is a critical property for a wide range of spintronic-based sensor and computing applications. While conventional magnetization measurements can detect superparamagnetic signatures, they often…

Mesoscale and Nanoscale Physics · Physics 2026-02-17 Shoaib Mahmud , Wei Zhang , Pronoy Das , Angshuman Deka , Wenbo Sun , Zubin Jacob

We model the charge, spin, and heat currents in ferromagnetic metal$|$normal metal$|$normal metal trilayer structures in the two current model, taking into account bulk and interface thermoelectric properties as well as Joule heating.…

In a recent letter [Phys. Rev. Lett. 80, 5782 (1998)], Bruder and Imry address the reentrance effect in proximity coupled normal-metal coated superconducting cylinders discovered by Mota et al. and challenging theoretical understanding to…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 A. Fauchere , V. Geshkenbein , G. Blatter

We have studied the anomalous Nernst effect (ANE) in [Fe3O4/Pt]-based heterostructures, by measuring the ANE-induced electric field with a magnetic field applied normal to the sample surface, in the perpendicular magnetized configuration,…

The Fermi surfaces of Fe-pnictide superconductors are fairly two-dimensional (2D), and it has thus come as a surprise that recent penetration depth and thermal conductivity measurements on systems of the 122 type have reported c-axis…

Superconductivity · Physics 2015-03-18 V. Mishra , S. Graser , P. J. Hirschfeld

Studies of ferromagnet-superconductor hybrid systems have uncovered magnetic interactions between the competing electronic orderings. The electromagnetic (EM) proximity effect predicts the formation of a spontaneous vector potential inside…

Superconductivity · Physics 2023-04-12 Nathan Satchell , P. Quarterman , J. A. Borchers , Gavin Burnell , Norman O. Birge

Measurements of the perpendicular upper critical magnetic field H_{c2 \perp}(T) are reported for several Nb/CuMn multilayers. It is found that, despite the magnetic nature of the samples, the data for samples with low Mn percentage in the…

Superconductivity · Physics 2007-05-23 A. Angrisani Armenio , L. V. Mercaldo , S. L. Prischepa , M. Salvato , C. Attanasio , L. Maritato

We developed a parabolic effective mass model with the aim to describe the in-plane constricted superconductivity in few-monolayer MgB$_2$. The model was employed to study a constricted quasi-$1$D superlattice with the simplest version of…

Superconductivity · Physics 2022-12-23 Wojciech Julian Pasek , Marcos H. Degani , Marcio C. de Andrade , Marcelo Z. Maialle

The effect of the thickness of ion exchange membranes has been investigated for electrodialysis (ED) and reverse electrodialysis (RED), both experimentally and through theoretical modeling. By developing a two-dimensional model based on…

Chemical Physics · Physics 2020-03-18 M. Tedesco , H. V. M. Hamelers , P. M. Biesheuvel

BaFe2Se3 is a potential superconductor material exhibiting transition at 11 K and ambient pressure. Here we extended the structural and performed electrical resistivity measurements on this compound up to 51 GPa and 20 GPa, respectively, in…

We consider quasi-two-dimensional gas of electrons in a typical Si-MOSFET, assuming repulsive contact interaction between electrons. Magnetisation and susceptibility are evaluated within the mean-field approach. Finite thickness of the…

Mesoscale and Nanoscale Physics · Physics 2017-06-28 D. I. Golosov

The coherent phenomena in mesoscopic cylindrical normal metal (N) - superconductor (S) structures have been investigated theoretically. The magnetic moment (persistent current) of such a structure has been calculated numerically and…

Superconductivity · Physics 2010-01-05 G. A. Gogadze , S. N. Dolya

With copper-substituted lead apatite below room temperature, we observe diamagnetic dc magnetization under magnetic field of 25 Oe with remarkable bifurcation between zero-field-cooling and field-cooling measurements, and under 200 Oe it…

Superconductivity · Physics 2024-01-03 Hongyang Wang , Yao Yao , Ke Shi , Yijing Zhao , Hao Wu , Zhixing Wu , Zhihui Geng , Shufeng Ye , Ning Chen

Resistivity and ac magnetic susceptibility measurements on Ba2Sn3Sb6 and SrSn3Sb4 indicate that these Zintl compounds display a transition to a superconducting phase at Tc = 3.9 K. The Meissner effect was observed for Ba2Sn3Sb6 under an…

Superconductivity · Physics 2007-05-23 Laura Deakin , Robert Lam , Frank Marsiglio , Arthur Mar

The in-plane diamagnetism around the Meissner transition was measured in a Tl$_2$Ba$_2$Ca$_2$Cu$_3$O$_{10}$ single crystal of high chemical and structural quality, which minimizes the inhomogeneity and disorder rounding effects on the…

Superconductivity · Physics 2009-11-13 J. Mosqueira , L. Cabo , F. Vidal

The chain-like organic compounds with conjugated structure have the potential to become high temperature superconductors. We examine this idea by choosing p-quinquephenyl with five phenyl rings connected in para position. The dc magnetic…

Superconductivity · Physics 2018-01-25 Ge Huang , Ren-Shu Wang , Xiao-Jia Chen

We propose that mass-imbalanced superconductivity is realized in an effective two-channel Kondo lattice, and its characteristic property appears in electromagnetic responses such as the Meissner effect. Starting from an effective…

Strongly Correlated Electrons · Physics 2016-11-03 Hiroaki Kusunose

We present X-ray diffraction (XRD), M\"ossbauer spectroscopy (MS) and d.c. magnetization measurements performed on ball-milled CuFe2O4 samples. The average particle size <d> was found to decrease to the nanometer range after t=15 min of…

Materials Science · Physics 2013-02-26 G. F. Goya , H. R. Rechenberg

Single-domain, epitaxially-grown Nb(110)/Au(111)/Nb(110) trilayers are studied in order to elucidate the superconducting proximity effect in the Au(111) layer. The critical current density, superconducting coherence length, and…

Superconductivity · Physics 2016-02-19 Hiroki Yamazaki , Nic Shannon , Hidenori Takagi