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The simplest negatively curved (schwartzene) surface allotrope of carbon, C 32 -trousers, is introduced and modeled. Restricted Hartree-Fock calculations show that C 32 -trousers is a stable unit and also demonstrate the viability of several related schwartzenes. In contrast to many schwartzene structures proposed earlier, C 32 -trousers is a reasonable target...
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