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We use local and global magnetometry measurements to study the influence of magnetic domain width w on the domain-induced vortex pinning in superconducting/ferromagnetic bilayers, built of a Nb film and a ferromagnetic Co/Pt multilayer with…

Superconductivity · Physics 2015-05-28 Marta Z. Cieplak , L. Y. Zhu , Z. Adamus , M. Konczykowski , C. L. Chien

Electronic charge order is a symmetry breaking state in high-$T_\mathrm{c}$ cuprate superconductors. In scanning tunneling microscopy, the detected charge-order-induced modulation is an electronic response of the charge order. For an…

Superconductivity · Physics 2019-10-18 Ying Fei , Yuan Zheng , Kunliang Bu , Wenhao Zhang , Ying Ding , Xingjiang Zhou , Yi Yin

Scaling behaviour of dynamically driven vortex avalanches in superconducting YBa$_{2}$Cu$_{3}$O$_{7-\delta}$ films deposited on tilted crystalline substrates has been observed using quantitative magneto-optical imaging. Two films with…

The disordered flux line lattice in single crystals of the slightly overdoped aFe_{2-x}Co_xAs_2 (x = 0.19, Tc = 23 K) superconductor is studied by magnetization measurements, small-angle neutron scattering (SANS), and magnetic force…

In this paper, we present a tailored lens and a tailored reflector in order to reduce the large beam divergence inherent to Orbital Angular Momentum waves (OAM waves-Vortex waves) that are generated by an Uniform Circular Patch Antenna…

The electromagnetic response to microwaves in the mixed state of YBa2Cu3Oy(YBCO) was measured in order to investigate the electronic state inside and outside the vortex core. The magnetic-field dependence of the complex surface impedance at…

Bitter decoration and magneto-optical studies reveal that in heavy-ion irradiated superconductors, a 'porous' vortex matter is formed when vortices outnumber columnar defects (CDs). In this state ordered vortex crystallites are embedded in…

High-temperature superconductors (high-Tc SCs) host a rich landscape of electronic phases encompassing the pseudogap, strange metal, superconducting, antiferromagnetic insulating, and Fermi-liquid regimes. The superconducting phase is…

Using high sensitivity magneto-optical imaging we find evidence for a jump in local vortex density associated with a vortex liquid to solid phase transition just above the lower critical field in a single crystal of Bi2Sr2CaCu2O8. We find…

Superconductivity · Physics 2012-10-12 Gorky Shaw , Pabitra Mandal , S. S. Banerjee , T. Tamegai

Experiments on potential differences in the low-temperature vortex solid phase of monocrystalline platelets of superconducting Bi(2)Sr(2)CaCu(2)O(8) (BSCCO) subjected to currents driven either through an "ab" surface or from one such…

Superconductivity · Physics 2009-11-07 I. Pethes , A. Pomar , B. Sas , G. Kriza , K. Vad , A. Pallinger , F. Portier , F. I. B. Williams

Square arrays of sub-micrometer columnar defects in thin YBa$_{2}$Cu$_{3}$O$_{7-\delta}$ (YBCO) films with spacings down to 300 nm have been fabricated by a He ion beam projection technique. Pronounced peaks in the critical current and…

Superconductivity · Physics 2017-07-25 G. Zechner , F. Jausner , L. T. Haag , W. Lang , M. Dosmailov , M. A. Bodea , J. D. Pedarnig

In the mixed state of type II superconductors, vortices penetrate the sample and form a correlated system due to the screening of supercurrents around them. Interestingly, we can study this correlated system as a function of density and…

Superconductivity · Physics 2009-11-10 M. Hilke , S. Reid , R. Gagnon , Z. Altounian

We report measurements of the field and angular dependences of Jc of truly epitaxial Co-doped BaFe2As2 thin films grown on SrTiO3/(La,Sr)(Al,Ta)O3 with different SrTiO3 template thicknesses. The films show Jc comparable to Jc of single…

By utilizing the AdS/CFT correspondence, we explore the dynamics of strongly coupled superfluid vortices in a disk with constant angular velocity. Each vortex in the vortex lattice is quantized with vorticity one from the direct inspection…

High Energy Physics - Theory · Physics 2019-09-18 Chuan-Yin Xia , Hua-Bi Zeng , Hai-Qing Zhang , Zhang-Yu Nie , Yu Tian , Xin Li

One important factor affecting the critical current density in type-II superconductors is the formation of artificial pinning centers. Hence, the engineering of pinning centers in superconducting systems has garnered considerable attention.…

Superconductivity · Physics 2024-06-06 Zahra Owjifard , Ali Tavana , Mehdi Hosseini

For a type-II superconductor, when the applied magnetic field is higher than the lower critical value Hc1, the magnetic flux will penetrate into the superconductor and form quantized vortices, which usually are arranged in an Abrikosov…

Superconductivity · Physics 2011-02-16 Lei Shan , Yong-Lei Wang , Bing Shen , Bin Zeng , Yan Huang , Ang Li , Da Wang , Huan Yang , Cong Ren , Qiang-Hua Wang , Shuheng Pan , Hai-Hu Wen

The three dimensional XY model with quenched random disorder and finite screening is studied. We argue that the system scales to model with $\lambda\simeq 0\simeq T$ and the resulting effective model is studied numerically by defect energy…

Statistical Mechanics · Physics 2007-05-23 C. Giardina' , N. V. Priezjev , J. M. Kosterlitz

Quantum vortices play a crucial role in both equilibrium and dynamical phenomena in two-dimensional (2D) superfluid systems. Experimental detection of these excitations in 2D ultracold atomic gases typically involves examining density…

Quantum Gases · Physics 2025-05-20 Magnus Sesodia , Shinichi Sunami , En Chang , Erik Rydow , Christopher J. Foot , Abel Beregi

The ability of high-temperature superconductors (HTSs) to carry very large currents with almost no dissipation makes them irreplaceable for high-power applications. The development and further improvement of HTS-based cables requires an…

Superconductivity · Physics 2016-04-14 I. A. Sadovskyy , A. E. Koshelev , A. Glatz , V. Ortalan , M. W. Rupich , M. Leroux

Superconducting films in perpendicular magnetic field are found to rectify alternating currents. The effect has been observed both in plain and nanostructured superconducting films (niobium and lead). The rectified voltage appears both…

Superconductivity · Physics 2007-05-23 F. G. Aliev , A. P. Levanyuk , R. Villar , E. M. Gonzalez , V. V. Moshchalkov