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Showing 2004 · cond-mat.supr-conShow all

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cond-mat.supr-con2004★ 25 cited

Superconductivity in MgB_2 doped with Ti and C

R. H. T. Wilke, S. L. Bud'ko, P. C. Canfield +6

Measurements of the superconducting upper critical field, H_{c2}, and critical current density, J_c, have been carried out for MgB_2 doped with Ti and/or C in order to explore the…

cond-mat.supr-con2004★ 59 cited

Irreversibility Field and Flux Pinning in MgB2 with and Without SiC Additions

M. D. Sumption, M. Bhatia, E. W. Collings +4

Critical current density was measured at 4.2 K for MgB2 strands with and without SiC additions. In some cases measurements were performed on longer (1 m) samples wound on barrels,…

cond-mat.supr-con2004★ 94 cited

Possible field-tuned SIT in high-Tc superconductors: implications for pairing at high magnetic fields

M. A. Steiner, G. Boebinger, A. Kapitulnik

The behavior of some high temperature superconductors (HTSC) such as and , at very high magnetic field, is similar to t…

cond-mat.supr-con2004★ 13 cited

Fluctuation-Driven First-Order Transition in Pauli-limited d-wave Superconductors

Denis Dalidovich, Kun Yang

We study the phase transition between the normal and non-uniform (Fulde-Ferrell-Larkin-Ovchinnikov) superconducting state in quasi two-dimensional d-wave superconductors at finite…

cond-mat.supr-con2004★ 32 cited

Vortex Lattice Structure of Fulde-Ferrell-Larkin-Ovchinnikov Superconductors

Kun Yang, A. H. MacDonald

In superconductors with singlet pairing, the inhomogeneous Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state is expected to be stabilized by a large Zeeman splitting. We develop an eff…

cond-mat.supr-con2004★ 5 cited

Numerical study of spin quantum Hall transitions in superconductors with broken time-reversal symmetry

Qinghong Cui, Xin Wan, Kun Yang

We present results of numerical studies of spin quantum Hall transitions in disordered superconductors, in which the pairing order parameter breaks time-reversal symmetry. We focus…

cond-mat.supr-con2004★ 126 cited

Experimental evidence for a collective insulating state in two-dimensional superconductors

G. Sambandamurthy, L. W. Engel, A. Johansson +2

We present the results of an experimental study of the current-voltage characteristics in strong magnetic field () of disordered, superconducting, thin-films of amorphous Indium…

cond-mat.supr-con2004★ 94 cited

Superconducting Puddles and "Colossal'' Effects in Underdoped Cuprates

G. Alvarez, M. Mayr, A. Moreo +1

Phenomenological models for the antiferromagnetic (AF) vs. d-wave superconductivity competition in cuprates are studied using conventional Monte Carlo techniques. The analysis sugg…