Carbon foam: Spanning the phase space between graphite and diamond

Koichiro Umemoto, Susumu Saito, Savas Berber, and David Tománek
Phys. Rev. B 64, 193409 – Published 19 October 2001
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Abstract

We study an unusual class of carbon structures, based on rigidly interconnected segments of graphite. The resulting foamlike systems cover the structural phase space extending from hexagonal diamond to graphite. Related to the most stable phases of carbon, these hybrid systems show an unusually high structural stability at low mass densities. Our density-functional calculations indicate that carbon foam is metallic, stable, and structurally rigid.

  • Received 25 May 2001

DOI:https://doi.org/10.1103/PhysRevB.64.193409

©2001 American Physical Society

Authors & Affiliations

Koichiro Umemoto1, Susumu Saito1, Savas Berber2, and David Tománek1,2,*

  • 1Department of Physics, Tokyo Institute of Technology, 2-12-1 Oh-okayama, Meguro-ku, Tokyo 152-8551, Japan
  • 2Department of Physics and Astronomy, and Center for Fundamental Materials Research, Michigan State University, East Lansing, Michigan 48824-1116

  • *Corresponding author. Email address: tomanek@pa.msu.edu

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Issue

Vol. 64, Iss. 19 — 15 November 2001

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