Materials Literature
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The molecular field effect from Gd on the 3d electronic states of Cu was studied from both a macro-scopic magnetization measurement and a micro-scopic way of magnetic Compton profile MCP in the rich content of Gd where the molecular field from Gd was increased as high as possible. From magnetization measurement, the m…
Single crystalline tin oxide (SnO2) nanowires have been synthesized by carbothermal reduction of SnO2nanopowder followed by thermal evaporation of the reduced precursor and growth via the vapor-liquid-solid (VLS) growth mechanism. The nanowires are deposited on single crystalline TiO2substrates of orientations of (100…
The thermal stability of low dose Ga + ion irradiated spin valves has been investigated and compared with that of the as-prepared ones. The dependences of exchange field, measured using vibrating sample magnetometer at room temperature, on magnetic field sweep rate and time spent at negative saturation of the pinned f…
Boron fibers have a significant potential to be utilized as structural components for flight / space applications. The key technical issue was to develop a cost effective method to produce continuous boron fibers. MER has accomplished success in that area by utilizing spread, low-cost PANEX 48 K carbon fibers. Subsequ…
Solid solutions in the (Mn1 − x Fe x )1.68Sn system (x ≤ 0.5) with a Ni2In-type structure are synthesized by the solid-phase reaction method in a stepwise temperature regime. The unit cell parameters a and c decrease with an increase in the iron concentration in the alloys and become equal to a = 0.430 nm and c = 0.53…
We consider the edge-type Josephson junctions in thin films, for which the stray fields significantly affect the screening and tunneling currents. It is demonstrated that the spatial distribution of the phase difference ϕ across thin-film Josephson junctions is nonlocal. We find that in the limit of weak tunneling and…
Optical resonant filters represent an important alternative to achieve optical notch filtering. Enhancing the filtering properties by new designs for these filters is an essential aspect because they can be a key component in important systems, such as optical communications, bio-photonics applications, and optical se…
We examine a triplet Josephson junction where time-reversal symmetry is broken by the misalignment of the d -vectors of the triplet superconductors on either side of the junction. We demonstrate that a spontaneous magnetization of the tunneling barrier can be stabilized, with moment aligned along the direction mutuall…
A new kind of metallic oxide film consisted of nanodisks with porous structure has been prepared, which is different from that of targetlike multirings previously reported by our group. Herein, the SnO 2 film has been prepared by using tin(IV) tert-butoxide as precursor, sodium dodecyl sulfonate (SDS) as template and…
This paper deals with a high-powered, low-loss and digital current disturbance generator. It can produce harmonic current, active current, inductive reactive current and capacitive reactive current, so it is able to simulate kinds of actual industrial situations. By using energy feedback technology, the generator feed…
We study a phase dynamics induced by a spin dynamics in a ferromagnetic Josephson junction, in which two superconductors (SC's) are separated by a ferromagnetic layer. A new phenomenological model for the phase variable is proposed by including the spin dynamics excited by the ferromagnetic resonance (FMR) in the gaug…
The method given in many publications for calculating the solubility product of potassium bitartrate is wrong in principle. A way of modifying the experimental approach and calculations to overcome the problem are presented.
Calculations of the optical conductivity σ(ω) for hole doped La 0.7 Ca o.3 MnO 3 manganites have been made within the two-component scheme: one is the coherent Drude free carrier excitation. The other is incoherent motion of carriers from one site to other leading to a polaron formation, originated from inter-band tra…
With density functional theory, the globe geometry optimization for both bare Aln(n = 3, 6) clusters and their corresponding clusters with Li atom at different adsorption sites have been performed. The calculated relative energies indicate that in both Al3and Al6, hollow sites for Li adsorption are slightly more prefe…
Characteristics of Russian fluorrubbers and lattices are reported.
The highest critical temperature reported for the superconducting system Ba-Ca-Cu-O is Tc=117K. We have investigated the fabrication of systems consisting of Ba-Ca-Cu-O mid-layers sandwiched by YBa 2 Cu 3 O 7-δ (Y-123) films. These trilayered structures were fabricated using pulsed laser deposition under 13.3Pa O 2 pr…
We present a detailed study on the memory effect results in Na 0.5§ 5CoO 2 single crystals. We analyze the temperature dependence of the nonvolatile current-pulse-induced resistance memory state. These results allow us to have more insight in the mobility of Na + ions induced by current and their effect on the memory…
The peculiarities of contact-induced deformation in nano-, micro- and macroscopic scale of silicon nitride ceramic composites have been studied by using quasistatic macro- and microindentation techniques, dynamic nanoindentation technique and microstructure investigations. The addition of multiwall carbon nanotubes (M…
Recently, the surface mounting devices (SMD) have been rapidly developed for miniaturisation of electronic applications such as cellular phones, cameras, computers, etc. Low temperature sintering NiCuZn and MnCuZn ferrite was employed at most cases due to its co-firability with Ag (below 960OC).The purpose of this stu…
The magnetic susceptibility of the quasi-one-dimensional system with the periodic potential such as slow cooled (TMTSF) 2 ClO 4 is studied numerically. The magnitude of the periodic potential is given by V . The imperfect nesting on the Fermi surface originates from higher harmonics ( t' b t 3 , t 4 ) of the tight-bin…