[Wannier] Hopping parameters from wannier90

[Houlong Zhuang]

Dear all,

There are positive and negative hopping parameters in a *hr.dat file. I was
wondering whether there is any convention in wannier90 that, for example,
positive means anti bonding while negative means bonding between two
orbitals. Or, they have completely different meanings from what I thought.

Thank you.

Best wishes,

Houlong Zhuang
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