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Magnetic memory based on La 0.7 Ca 0.3 MnO 3 / YBa 2 Cu 3 O 7 / La 0.7 Ca 0.3 MnO 3 ferromagnet/superconductor hybrid structures Appl. Phys. Lett. 97, 032501 (2010); 10.1063/1.3464960 Spin wave scattering and interface magnetism in superconducting-ferromagnet-superconducting hybrid structures

Enhancement of current for solutions, containing Ni+2, Fe+2, and H+ ions, has been observed by linear sweep voltammetry and chronoamperometry when a magnetic field of 0.1 T was applied parallel to the cathode. The current enhancement in a magnetic field was attributed to the convection near the electrode surface induced by the Lorentz force. There is a decrease of the Fe content in NiFe films by approximately 4% obtained with applied magnetic field. It was also demonstrated that the applied magnetic field affects the magnetic properties, crystalline structure and/or texture, stress, and surface roughness of NiFe films. © 2003 The Electrochemical Society. All rights reserved.

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Multilayers consisting of the perovskite metallic oxides, ferromagnetic La2/3Ba1/3MnO3 (LBMO) and paramagnetic LaNiO3 (LNO) have been grown by ozone-assisted molecular beam epitaxy. Structural characterization using in situ reflection high-energy electron diffraction and high-resolution x-ray diffraction reveal a very high degree of crystalline order. Magnetization and hysteresis measurements show evidence of antiferromagnetic coupling between LBMO layers when the LNO spacer is 15 Å or less in thickness.

We report the growth and characterization of ultra-smooth, highly ordered, strained La2/3Ca1/3MnO3±d thin films (approximately 600 Å in thickness). The thin films were deposited by ozone-assisted, block-by-block, molecular beam epitaxy on SrTiO3 (001) substrates without any post-deposition annealing. Scanning tunneling microscopy images showed oriented, unit-cell-high terraces characteristic of a step-flow growth mechanism. The root-mean-square roughness of the surface of an imaged film was determined to be 2 Å. This same film showed negative magnetoresistance values, [R(H=0)−R(Happlied)]/R(H=0), at 150 K of 93% and 5% in applied magnetic fields of 5.12 and 4×10−2 T, respectively.

The effect of an external in-plane magnetic field (B=0.1T) on the electrodeposition of NiCu films from a citrate bath solution was studied. The application of the magnetic field showed the following effects: (i) an increase of limiting current for Cu2+ reduction, (ii) an increase of plating rate of NiCu by ∼17% , (iii) an increase of Cu content in NiCu deposit of 4.9%, (iv) a decrease of tensile stress on NiCu films, (v) a strong influence on the texture, and (vi) a strong influence on surface morphology resulting in three-dimensional (3D) growth without applied magnetic field and 2D growth with applied magnetic field.

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