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Showing 2014 · cond-mat.str-elShow all
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cond-mat.str-el2014★ 47 cited
Strain induced edge magnetism at zigzag edge in graphene quantum dot
Shuai Cheng, Jinming Yu, Tianxing Ma +1
We study the temperature dependent magnetic susceptibility of a strained graphene quantum dot by using the determinant quantum Monte Carlo method. Within the Hubbard model on a hon…
cond-mat.str-el2014★ 3 cited
Vanishing spin stiffness in the spin-1/2 Heisenberg chain for any nonzero temperature
J. M. P. Carmelo, T. Prosen, D. K. Campbell
Whether at zero spin density and finite temperatures the spin stiffness of the spin- chain is finite or vanishes remains an unsolved and controversial issue,…