<div dir="ltr">Dear all,<div><br></div><div>I understand that you one obtain tight binding parameters from wannier90 by inspecting the elements of the Hamiltonian in the wannier basis. I am getting positive and negative values for these elements.</div>
<div><br></div><div>Is there a physical interpretation for positive and negative values for the hopping parameters?</div><div><br></div><div>Thanks,</div><div>Lexa</div></div>