Protected 0-pi states in SIsFS junctions for Josephson memory and logic

We study the peculiarities in current-phase relations (CPR) of the SIsFS junction in the region of $0$ to $\pi$ transition. These CPR consist of two independent branches corresponding to $0-$ and $\pi-$ states of the contact. We have found that depending on the transparency of the SIs tunnel barrier the decrease of the s-layer thickness leads to transformation of the CPR shape going in the two possible ways: either one of the branches exists only in discrete intervals of the phase difference $\varphi$ or both branches are sinusoidal but differ in the magnitude of their critical currents. We demonstrate that the difference can be as large as $10\%$ under maintaining superconductivity in the s layer. An applicability of these phenomena for memory and logic application is discussed.Comment: 5 pages, 5 figure

The association of serum osteocalcin level with lipid metabolism indices of infant with rickets amid obesity

Department of Pediatrics No 1, N. I. Pirogov National Medical University of Vinnitsa, UkraineBackground: Osteocalcin is considered the specific marker of osteogenesis. However recently more and more researcher’s attention is drawn to osteocalcin as a possible regulator of adipose tissue. Material and methods: 56 children aged from 3 to 12 months with clinical signs of vitamin D-deficient rickets were under the supervision. The main group was formed of 28 children with physical development that exceeded the age limit. The comparison group consisted of 28 children with the normal physical development. The control group was formed of 20 apparently healthy children of similar age. According to the aim of the research we determined serum concentrations of osteocalcin and lipids for all of them. Results: Statistically lower levels of osteocalcin were recorded in children of the main group (p < 0.05). There was a positive correlation between the concentration of serum osteocalcin with HDL (r = 0.86, p < 0.001) for children of the first year of life. A strong inverse correlation was found between the bone marker data and SC (r = -0.93, p < 0.001). A significant difference in the mean values of serum osteocalcin relative to the comparison group was observed in children with obesity and overweight. Conclusions: The results of our research suggest a causal relationship between obesity and impaired bone metabolism in children during the first year of life

The effect of normal and insulating layers on 0-π transitions in Josephson junctions with a ferromagnetic barrier

Using the Usadel approach, we provide a formalism that allows us to calculate the critical current density of 21 different types of Josephson junctions (JJs) with a ferromagnetic (F) barrier and additional insulating (I) or/and normal (N) layers inserted between the F layer and superconducting (S) electrodes. In particular, we obtain that in SFS JJs, even a thin additional N layer between the S layer and F layer may noticeably change the thickness dF of the F layer at which the 0-π transitions occur. For certain values of dF, a 0-π transition can even be achieved by changing only the N layer thickness. We use our model to fit experimental data of SIFS and SINFS tunnel junctions

Frame "Social Activities to Achieve the Goal": Formation and Specifics of Its Representation at Language Level

The proposed article is devoted to describing the specifics of the frame formation "social activity to achieve the goal" represented by the verbal tokens (achieve, accomplish, attain, gain, succeed in, obtain, manage, strive, etc.) with the corresponding meaning and revealing the dependence of the modification of their meaning on the intrasystem and extra system restructuring of the proper frame

Method for reliable realization of a varphi Josephson junction

We propose a method to realize a $\phi$ Josephson junction by combining alternating 0 and $\pi$ parts (sub junctions) with an intrinsically non-sinusoidal current-phase relation (CPR). Conditions for the realization of the $\phi$ ground state are analyzed. It is shown that taking into account the non-sinusoidal CPR for a "clean junction with a ferromagnetic (F) barrier, one can significantly enlarge the domain (regime of suitable F-layer thicknesses) of the $\phi$ ground state and make the practical realization of $\phi$ Josephson junctions feasible. Such junctions may also have two different stable solutions, such as 0 and $\pi$, 0 and $\phi$, or $\phi$ and $\pi$

The effect of normal and insulating layers on 0-πtransitions in Josephson junctions with a ferromagnetic barrier

Using the Usadel approach, we provide a formalism that allows us to calculate the critical current density of 21 different types of Josephson junctions (JJs) with a ferromagnetic (F) barrier and additional insulating (I) or/and normal (N) layers inserted between the F layer and superconducting (S) electrodes. In particular, we obtain that in SFS JJs, even a thin additional N layer between the S layer and F layer may noticeably change the thickness ${d}_{{\rm{F}}}$ of the F layer at which the 0-π transitions occur. For certain values of ${d}_{{\rm{F}}},$ a 0-π transition can even be achieved by changing only the N layer thickness. We use our model to fit experimental data of SIFS and SINFS tunnel junctions

Semantic features of the phraseological units with the component light within the artistic discourse

Conduct lexical and semantic analysis on the concept light in the artistic discourse of postmodern fictio