Publications by authors named "Yu Shiratsuchi"

Prokaryotes organize intracellular compartments with protein-based organelles called encapsulins. Encapsulins with icosahedral symmetry can encapsulate specific cargo proteins mediated by targeting peptides or encapsulation-mediating domains. Encapsulins have been used in eukaryotic cells for bioengineering, vaccine development, and nanoparticle alignment.

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We systematically investigate the long- and short-range chemical order, lattice volume, and spontaneous magnetization in single-crystalline FeAlcompound thin films. The vapor-quenching method based on a molecular beam epitaxy technique is utilized to fabricate the single-crystalline FeAlcompound with the different2 long-range order parameterwas varied by the deposition temperatureand it increases with increasing. The lattice volumedecreased with increasing, while the tetragonal distortion, ∼4%, due to epitaxial strain were observed.

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Magnetoelectric (ME) effect is a type of cross-coupling between unconjugated physical quantities, such as the interplay between magnetization and electric field. The ME effect requires simultaneous breaking of spatial and time inversion symmetries, and it sometimes appears in specific antiferromagnetic (AFM) insulators. In recent years, there has been a growing interest for applying the ME effect to spintronic devices, where the effect is utilized as an input method for the digital information.

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For the purpose of imaging element- and shell-specific magnetic distributions under high magnetic fields, a scanning soft X-ray microscope has been developed at beamline BL25SU, SPring-8, Japan. The scanning X-ray microscope utilizes total electron yield detection of absorbed circularly polarized soft X-rays in order to observe magnetic domains through the X-ray magnetic circular dichroism effect. Crucially, this system is equipped with an 8 T superconducting magnet.

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By using the perpendicular-exchange-biased Pt/Co/α-Cr(2)O(3) system, we provide experimental evidence that the unreversed uncompensated Cr spins exist at the Co/α-Cr(2)O(3) interface. The unreversed uncompensated Cr spin manifests itself in both the vertical shift of an element-specific magnetization curve and the relative peak intensity of soft-x-ray magnetic circular dichroism spectrum. We also demonstrate an in situ switching of the interfacial Cr spins and correspondingly a reversal of the exchange bias without interfacial atomic diffusion.

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