Graphene's Hubbard U and nanotube's U

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Thread starter ShaHan
Start date Oct 6, 2019
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ShaHan

Thread starter
Oct 6, 2019

TL;DR: Are graphene and nanotube Hubbard U system and if yes, what's the value

PhysRevLett.106,236805 (2011) seems to state that Graphene has U=9.3eV and PRB 55-R11973 (1997) states that nanotube has U=u/N. However, it's not unusual for them to be hubbard U systems

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ShaHan

Oct 8, 2019

Well, graphene do have 4.6eV U and SWCNT have about 7eV U. However, these U are smaller than W. So they are not Hubbard U system

Graphene's Hubbard U and nanotube's U

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Graphene's Hubbard U and nanotube's U

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