Nuechterlein: The Keys to Our Future in Asia

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GoDanRiver.com—Failure of President Trump’s effort to persuade North Korea’s Kim Jong-un to give up his nuclear weapons is a diplomatic setback, but it’s not the end of the game. Kim needs an end to tough U.N. sanctions imposed two years

Topological defects could be key to future nano-electronics. The reason that a magnet sticks to the fridge is that electronic spins or magnetic moments in the magnetic material spontaneously align or order in one direction, which enables it to exert an attractive force to the steel door. Magnets are one type of material with such built-in order. A topological defect in such a material occurs as a discontinuity in this order, i.e., a boundary region where the order does not seamlessly transition from one area to another. These topological structures form...