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Organic and polymer-based resistive memory cell sandwiched between two vertically aligned electrodes constitute crossbar memory arrays in which the building blocks, referred to as bit cells, possess two or multiple stable resistance states.1 They are promising circuit elements due to their good scalability and processability, high possibility of molecular design through chemical synthesis, high storage...
Ferromagnetic electrodes with perpendicular magnetic anisotropy (PMA) have been extensively studied because of the outstanding performance in applications. [1] To obtain high tunneling magnetoresistance (TMR), researchers have put efforts to realize PMA with Co-based full-Heusler alloy films with MgO barrier. However, the lattice mismatch between MgO and full-Heusler alloy leads to a rapid TMR reduction...
Electric-Field-Control of magnetism using BiFeO3-based heterostructures is attracting a great amount of research interest. BiFeO3 (BFO) has outstanding ferroelectric properties and G-type antiferromagnetic ordering in the bulk. BFO has also a relatively high ferroelectric Curie temperature (TC∼1100K), high antiferromagnetic Neel temperature (TN∼640K), high remnant polarization (2Pr∼110μC/cm2), and...
We propose a novel infrared nanofilter of localized enhanced field with multiband resonant frequencies. Compared to the resonant wavelength, the structure size is very subwavelength. We establish the effective medium theory to illustrate the light field distribution of the fractals. The loss factor is used to retrieve relative permittivity which is utilized to reproduce of reflection and transmission...
Densely packed carbon nanotube (CNT) forest on silicon wafer has been fabricated by combining the process of mechanical press and liquid densification. Advantages from the densely packed CNT forest prototype devices include: (1) 16-fold volume reduction with the same amount of CNT forest as compared to the as-grown CNT forest; (2) preservations of aligned CNT organization and natural contacts to the...
Zn0.92Co0.08O thin films annealed in hydrogen atmosphere have been prepared on Si (100) and quartz glass substrates by pulsed laser deposition using a ZnCoO ceramic target. The structural and magnetic properties of the films were investigated. X-ray diffraction, X-ray photoemission spectroscopy, high resolution transmission electron microscope and room-temperature UV-visible transmission spectrum...
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