Studies of the magnetization of Fe2O3@Pt nanoparticles at room temperature showed that there is superparamagnetic contribution with high saturation magnetization about 12.35(emu/g), and soft ferromagnetic contribution with narrow coercive field about 58(Oe). In this paper we fitted the hystersis loop of sample with Brillouin function that demonstrating existence of superparamagnetic phase. Tota...

We study the soft mode along the critical line in the phase diagram with the tricritical point, using the Nambu–Jona-Lasinio model. At the critical point with finite quark mass, the ordering density becomes a linear combination of the scalar, quark number and energy densities, and their susceptibilities diverge with the same exponent. Based on the conservation law, it is argued that the diverge...

All of them have a maximum at the same value of T , for a given mq, which defines the line in Fig. 1. For mq > 3 GeV, the maxima of χL diverge proportionally to the volume V , indicating a first order transition. At mq = 0 there are theoretical reasons and numerical indications that the transition is second order [3,1,2]. At intermediate values of mq (tiny part of the line in Fig. 1) the suscep...

Longitudinal data enables detecting the effect of aging/time, and as a repeated measures design is statistically more efficient compared to cross-sectional data if the correlations between repeated measurements are not large. In particular, when genotyping cost is more expensive than phenotyping cost, the collection of longitudinal data can be an efficient strategy for genetic association analy...

We determine the curvature of the phase transition line in the µ − T plane through an analysis of various observables, including the Polyakov loop, the quark number susceptibilities and the susceptibility of the chiral condensate. The second derivative of these quantities with respect to µ was calculated. The measurements were carried out on N T = 4, 6, 8 and 10 lattices generated with a Symanz...