The screening effects in a chromodynamic vacuum which act as dual superconductor in the background of the magnetic condensation, have been studied. The colour charge and colour electric flux Screening mechani sm have been investigated and these screening effects are shown to be responsible for the colour confinement in dual QCD. It is also demonstrated that with the transition from the type-Il ...

T h e p e r f o r m a n c e o f s m a I I v o I u m e Magnetic Resonance Imaging ( M R I ) d e p e n d s on t h e s y s t e m n o i s e determined by noise of a probe and/or of a preamplifier (not by the body noise). Several demonstrations confirmed that, for selected applications, high-TC superconductor MRI receiver coils have superior properties to those of comparable copper coils. W e report...

The minimum energy of a local heat pulse Qo, initiating normal zone propagation is an important characteristic of the stability of a superconducting composite. There are many papers concerning, both experimentally and theoretically (usually numerically), the value of Qc for composite superconductors (see, e.g., References 1-3 and references therein). In particular, simple analytical formulae fo...

We numerically study the superconductor-insulator phase transition in a model disordered two-dimensional 2D superconductor as a function of applied magnetic field. The calculation involves quantum Monte Carlo calculations of the 2+1 D XY model in the presence of both disorder and magnetic field. The XY coupling is assumed to have the form −J cos i− j −Aij , where Aij has a mean of zero and a st...

Josephson junctions operated by short pulses make the synthesis of AC and arbitrary waveforms possible. Series arrays of intrinsically shunted SINIS and SNS Josephson junctions were developed and characterized for applications in this Josephson arbitrary waveform synthesizer (S: Superconductor, I: Insulator, N: Normal conductor). First measurements under pulse irradiation are presented.

We carry out simulations of a lattice London superconductor in a magnetic field B, with a finite magnetic penetration length λ. We find that superconducting coherence parallel to B persists into the vortex line liquid. We argue that the length scale relevant to this effect is Λ = φ0/8πTm. 74.60.Ge, 64.60-i, 74.40.+k Typeset using REVTEX

Formation of magnetic moments in the cuprate superconductor Hg0.8Cu0.2Ba2Ca2Cu3O8+δ below Tc seen by NQR H. Breitzke, I. Eremin, D. Manske, E.V. Antipov and K. Lüders Fachbereich Physik, Freie Universität Berlin, D-14195 Berlin, Germany Institut für Theoretische Physik, Freie Universität Berlin, D-14195 Berlin, Germany Physics Department, Kazan State University, 420008 Kazan, Russia Department ...

We propose a high mobility superconductor gate nMOSFET using undoped Si as the substrate. We have studied superconducting NbN gate nMOSFETs fabricated on p-type Si, undoped Si and n-type Si substrate, respectively. The nMOSFETs on undoped Si and n-type Si have operated properly at 4.2 K. The transconductance of nMOSFETs on undoped Si substrate is higher than that of nMOSFET on p-type Si. The di...

In this paper, we considered the half logistic model and derived a probability density function that generalized it. The cumulative distribution function, the $n^{th}$ moment, the median, the mode and the 100$k$-percentage points of the generalized distribution were established. Estimation of the parameters of the distribution through maximum likelihood method was accomplished with the aid of c...