Fully epitaxial magnetic tunnel junctions (MTJs) with Co-based Heusler alloy Co(2)MnSi electrodes and a MgO tunnel barrier were fabricated with various values of Mn composition α for Co(2)Mn(α)Si in Co(2)Mn(α)Si/MgO/Co(2)Mn(α)Si MTJs. The tunnel magnetoresistance (TMR) ratios at both 4.2 K and room temperature (RT) increased systematically with increasing α in Co(2)Mn(α)Si electrodes from Mn-de...

OBJECTIVE Inflammatory processes have been implicated in the pathogenesis of diabetic distal sensorimotor polyneuropathy (DSPN), but their possible relationship has not been assessed at the population level. RESEARCH DESIGN AND METHODS We determined serum concentrations of mediators of subclinical inflammation among 1,047 participants 61-82 years of age from the population-based Cooperative H...

Strong electron localization into a bound state has been found in both paramagnetic and ferromagnetic states of the transition metal compound MnSi by muon spin-rotation spectroscopy in magnetic fields up to 7 T and from 2 K to room temperature. This bound state, with a characteristic radius R≈0.4 nm and net spin S=24±2, is consistent with confinement of the electron’s wave function within rough...

Distal symmetrical polyneuropathy (DSP) is the most common type of diabetic neuropathy, but often difficult to diagnose reliably. We evaluated the cross-sectional association between three point-of-care devices, Vibratron II, NC-stat(®), and Neurometer(®), and two clinical protocols, MNSI and monofilament, in identifying those with DSP, and/or amputation/ulcer/neuropathic pain (AUP), the two ou...

Some full-Heusler alloys, such as Co(2)MnSi and Co(2)MnGe, are expected to be half-metallic ferromagnetic material, which has complete spin polarization. They are the most promising materials for realizing half-metallicity at room temperature owing to their high Curie temperature. We demonstrate a huge tunnel magnetoresistance effect in a magnetic tunnel junction using a Co(2)MnSi Heusler alloy...

Magnetotransport properties have been investigated for epitaxial thin films of B20-type MnSi grown on Si(111) substrates. Lorentz transmission electron microscopy images clearly point to the robust formation of Skyrmions over a wide temperature-magnetic field region. New features distinct from those reported previously for MnSi are observed for epitaxial films: a shorter (nearly half) period of...

The electronic structures of MnGe were studied by density functional theory. B20 crystal structure plays an important role to make properties this compound. electromagnetic characteristics compared with those MnSi due same structure. value magnetic moment between two compounds has a large difference, which comes from the states. shows half-metal characteristics. It $2.0_{\mu B}$ is 5 times that...

Methodology Ninety consecutive patients at a university hospital in Manaus, Amazonas were included in this study. Eighty-six (95.6%) had type 2 diabetes, 66.7% were female, mean age was 56.2±12.8 yrs.-old and mean time of diabetes diagnosis was 11.5±9.5 yrs. They were evaluated using Michigan Neuropathy Screening Instrument (MNSI) and the clinical component of the Michigan Diabetic Neuropathy S...

The positron annihilation lifetimes were measured using a 48V source in noncentrosymmetric cubic single crystals of CoSi, FeSi and MnSi. following determined from the time spectra: 168(1) ps for 114(1) 111(1) For single-crystal lifetime was also with 22Na source. obtained different sources are consistent. differences MnSi FeSi, on one hand, Weyl semimetal other possibly caused by formation + el...

MnSi is a weak itinerant helimagnet with a relatively low order magnetic moment. Temperature dependance of resistivity shows that it enters non-Fermi liquid state above a critical pressure pc which remains to be understood. The observed partial magnetic order above pc indicates novel metallic state. Here, Fermi liquid and non-Fermi liquid theories are discussed with the main focus on the temper...