skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Three-dimensional Pentagon Carbon with a genesis of emergent fermions

Abstract

Carbon, the basic building block of our universe, enjoys a vast number of allotropic structures. Owing to its bonding characteristic, most carbon allotropes possess the motif of hexagonal rings. Here, with first-principles calculations, we discover a new metastable three-dimensional carbon allotrope entirely composed of pentagon rings. The unique structure of this Pentagon Carbon leads to extraordinary electronic properties, making it a cornucopia of emergent topological fermions. Under lattice strain, Pentagon Carbon exhibits topological phase transitions, generating a series of novel quasiparticles, from isospin-1 triplet fermions to triply degenerate fermions and further to Hopf-link Weyl-loop fermions. Its Landau level spectrum also exhibits distinct features, including a huge number of almost degenerate chiral Landau bands, implying pronounced magneto-transport signals. In conclusion, our work not only discovers a remarkable carbon allotrope with highly rare structural motifs, it also reveals a fascinating hierarchical particle genesis with novel topological fermions beyond the Dirac and Weyl paradigm.

Authors:
ORCiD logo [1];  [1];  [2];  [1]; ORCiD logo [3]; ORCiD logo [1];  [3]
  1. Xiangtan Univ., Hunan (China). School of Physics and Optoelectronics
  2. Singapore Univ. of Technology and Design (Singapore). Research Lab. for Quantum Materials
  3. Rensselaer Polytechnic Inst., Troy, NY (United States). Dept. of Physics, Applied Physics, and Astronomy
Publication Date:
Research Org.:
Rensselaer Polytechnic Inst., Troy, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC); National Natural Science Foundation (NNSF)
OSTI Identifier:
1463888
Grant/Contract Number:  
SC0002623
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Nature Communications
Additional Journal Information:
Journal Volume: 8; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Zhong, Chengyong, Chen, Yuanping, Yu, Zhi-Ming, Xie, Yuee, Wang, Han, Yang, Shengyuan A., and Zhang, Shengbai. Three-dimensional Pentagon Carbon with a genesis of emergent fermions. United States: N. p., 2017. Web. doi:10.1038/ncomms15641.
Zhong, Chengyong, Chen, Yuanping, Yu, Zhi-Ming, Xie, Yuee, Wang, Han, Yang, Shengyuan A., & Zhang, Shengbai. Three-dimensional Pentagon Carbon with a genesis of emergent fermions. United States. doi:10.1038/ncomms15641.
Zhong, Chengyong, Chen, Yuanping, Yu, Zhi-Ming, Xie, Yuee, Wang, Han, Yang, Shengyuan A., and Zhang, Shengbai. Mon . "Three-dimensional Pentagon Carbon with a genesis of emergent fermions". United States. doi:10.1038/ncomms15641. https://www.osti.gov/servlets/purl/1463888.
@article{osti_1463888,
title = {Three-dimensional Pentagon Carbon with a genesis of emergent fermions},
author = {Zhong, Chengyong and Chen, Yuanping and Yu, Zhi-Ming and Xie, Yuee and Wang, Han and Yang, Shengyuan A. and Zhang, Shengbai},
abstractNote = {Carbon, the basic building block of our universe, enjoys a vast number of allotropic structures. Owing to its bonding characteristic, most carbon allotropes possess the motif of hexagonal rings. Here, with first-principles calculations, we discover a new metastable three-dimensional carbon allotrope entirely composed of pentagon rings. The unique structure of this Pentagon Carbon leads to extraordinary electronic properties, making it a cornucopia of emergent topological fermions. Under lattice strain, Pentagon Carbon exhibits topological phase transitions, generating a series of novel quasiparticles, from isospin-1 triplet fermions to triply degenerate fermions and further to Hopf-link Weyl-loop fermions. Its Landau level spectrum also exhibits distinct features, including a huge number of almost degenerate chiral Landau bands, implying pronounced magneto-transport signals. In conclusion, our work not only discovers a remarkable carbon allotrope with highly rare structural motifs, it also reveals a fascinating hierarchical particle genesis with novel topological fermions beyond the Dirac and Weyl paradigm.},
doi = {10.1038/ncomms15641},
journal = {Nature Communications},
number = ,
volume = 8,
place = {United States},
year = {Mon Jun 05 00:00:00 EDT 2017},
month = {Mon Jun 05 00:00:00 EDT 2017}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 13 works
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

Projector augmented-wave method
journal, December 1994


Efficiency of ab-initio total energy calculations for metals and semiconductors using a plane-wave basis set
journal, July 1996


Ab initiomolecular dynamics for liquid metals
journal, January 1993


The rise of graphene
journal, March 2007

  • Geim, A. K.; Novoselov, K. S.
  • Nature Materials, Vol. 6, Issue 3, p. 183-191
  • DOI: 10.1038/nmat1849

Two-dimensional gas of massless Dirac fermions in graphene
journal, November 2005

  • Novoselov, K. S.; Geim, A. K.; Morozov, S. V.
  • Nature, Vol. 438, Issue 7065, p. 197-200
  • DOI: 10.1038/nature04233