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Now showing items 1501-1510 of 2111
Orbital Mott transition in two dimensional pyrochlore lattice
(2020)
We study orbital Mott transition in two dimensional pyrochlore lattice, using a two orbital Hubbard model with only inter-orbital electronic hopping. We use a real space Monte Carlo based approach to study the model at ...
Magnetoresistance of chromium dioxide powder compacts
(American Physical Society, 1998)
Cold-pressed powders of the half-metallic ferromagnet CrO2 are dielectric granular metals. Hysteretic
magnetoresistance with maxima at the coercive field arises from interparticle contacts. Dilution with
insulating ...
Temperature dependent coercivity crossover in pseudo-spin-valve magnetic tunnel junctions with perpendicular anisotropy
(2011)
We report the temperature dependent collapse of tunnel magnetoresistance (TMR) in perpendicular anisotropy magnetic tunnel junctions (pMTJs) with AlO(x) barriers and (Co/Pt)(3) multilayer electrodes, due to the coercivity ...
Magnetism and Antiferroelectricity in MgB6
(2012)
We report on a density functional theory study demonstrating the coexistence of weak ferromagnetism and antiferroelectricity in boron-deficient MgB 6. A boron vacancy produces an almost one dimensional extended molecular ...
Superlubric Sliding of Graphene Auto-Kirigami with Interfaces Containing Self-Assembled Stripe-Pattern Adsorbates
(2024)
Van der Waals heterostructures formed by stacked 2D materials show exceptional electronic, mechanical, and optical properties. Superlubricity, a condition where atomically flat, incommensurate planes of atoms results in ...
Critical supercurrents and self organization in quantum Hall bilayers
(2010)
We present a theory of interlayer tunneling in a disordered quantum Hall bilayer at total filling factor
one, allowing for the effect of static vortices. In agreement with recent experiments [Phys. Rev. B 80,
165120 ...
Epitaxial growth and magnetic properties of Fe nanowedge islands on Mo(110)
(2005)
Fe films with a nominal thickness greater than or equal to 2 Angstrom grown on Mo(1 10) at 500 less than or equal to Tless than or equal to 750 K self-assemble into nanowedge islands supported on a pseudomorphic Fe wetting ...
Bi-substitution-induced magnetic moment distribution in spinel BixCo2-xMnO4 multiferroic
(2009)
We report the near-edge x-ray absorption spectroscopy (NEXAFS) at the Co/Mn L3,2 edge and oxygen K edge of the well-characterized Bi-substituted Co2MnO4 multiferroic samples. The evolution of peak features in NEXAFS spectra ...
Infrared spectroscopy of high-redshift quasars
(1994)
We present H and K spectra (showing redshifted H?, H? and [O III] emission lines) of three radio-loud and three radio-quiet quasars with redshifts z >~ 2, which were obtained using CGS4 on UKIRT The [O III] ?? 4959 + 5007 ...