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28 Current news of Tohoku University

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Supercomputer simulation reveals 2-D glass can go infinitely soft

16-Dec-2016

Scientists in Japan have revealed that if a glassy solid possesses a planar (sheet-like) structure, it can exhibit enhanced thermal vibration motion due to the same mechanism known for the planar crystals (two-dimensional crystals), by using large-scale simulations on supercomputers. "Imagine if ...

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Radiation that knocks electrons out and down, one after another

12-Dec-2016

Researchers at Japan's Tohoku University are investigating novel ways by which electrons are knocked out of matter. Their research could have implications for radiation therapy. Exposing a small cluster of neon atoms to a very short and intense burst of extreme ultraviolet light initiates a novel ...

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New lightweight shape-shifting alloy shows potential for a variety of applications

27-Jul-2016

A team of researchers at Tohoku University has discovered that the Mg-Sc alloy shows shape memory properties. This finding raises the potential for development and application of lightweight SMAs across a number of industries, including the aerospace industry. Shape memory alloys (SMAs) show ...

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Sub-nanosecond operation of nonvolatile memory demonstration

20-Jun-2016

The research group of Professor Hideo Ohno and Associate Professor Shunsuke Fukami of Tohoku University has demonstrated the sub-nanosecond operation of a nonvolatile magnetic memory device. Recently, the concept of "Internet of Things" (IoT) - a giant network of connected devices, people and ...

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A new-structure magnetic memory device developed

29-Mar-2016

The research group of Professor Hideo Ohno and Associate Professor Shunsuke Fukami of Tohoku University has developed a new-structure magnetic memory device utilizing spin-orbit- torque-induced magnetization switching. For these two decades, much effort has been devoted to the development of ...

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Controlling ultrafast electrons in motion

25-Feb-2016

An international team has used the light produced by the Free Electron Laser FERMI at the research Centre Elettra Sincrotrone Trieste in the AREA Science Park to control the ultrafast movement of electrons. The experiment opens the way to the study of more complex processes which occur in nature ...

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New physics and application of antiferromagnet uncovered

19-Feb-2016

The research group of Professor Hideo Ohno and Associate Professor Shunsuke Fukami of Tohoku University has studied the control of magnetization using a current applied to heterostructures comprising an antiferromagnet. They found that the current gives rise to a flow of electron spin in the ...

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Graphene becomes superconductive

Electrons with 'no mass' flow with 'no resistance'

18-Feb-2016

Graphene is a single-atomic carbon sheet with a hexagonal honeycomb network. Electrons in graphene take a special electronic state called Dirac-cone where they behave as if they have no mass. This allows them to flow at very high speed, giving graphene a very high level of electrical ...

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Unveiling distribution of defects in proton conductors

21-Oct-2015

Solid oxide fuel cells (SOFC), recently used as a power source for households in Japan, have several drawbacks such as high-cost, material degradation and long start-up time derived from high operating temperatures up to 750°C. Lowering the operating temperature to an "intermediate" range of ...

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Patterning oxide nanopillars at the atomic scale by phase transformation

19-Oct-2015

Researchers at Tohoku University's Advanced Institute for Materials Research (AIMR) have carried out a collaborative study aimed at precisely controlling phase transformations with high spatial precision, which represents a significant step forward in realizing new functionalities in confined ...

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