Posted by n on April 9, 2014, 7:53 pm
I am very confused about a question in problemset 4c, where we had to sketch the density of states g(E) for a two dimensional material. So we know there is sth between 2 and 0 and 2 and 10. So my question is whether g(E) diverges at these boundaries or in the middle. So is it a valley or a hill? If I calculate it I get a valley. But somehow is it supposed to be a hill? Or is there a reason for being allowed to shift the curves? Thank you. 
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