When you run an electric current (say, to the right), is that current made from positive charges (moving right) or negative charges (moving left)? In some materials, that depends on which direction the current flows. My new article in Nature News:https://www.nature.com/articles/s41563-019-0373-9 …
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That’s a fun effect. Wish I had some avenue to dabble in such things. When you get your CAREER grant hire me to do a summer of donkeywork in your lab or something.
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