Three-dimensional Pentagon Carbon with a genesis of emergent fermions

Chengyong Zhong, Yuanping Chen (), Zhi-Ming Yu, Yuee Xie, Han Wang, Shengyuan A. Yang () and Shengbai Zhang
Additional contact information
Chengyong Zhong: School of Physics and Optoelectronics, Xiangtan University
Yuanping Chen: School of Physics and Optoelectronics, Xiangtan University
Zhi-Ming Yu: Research Laboratory for Quantum Materials, Singapore University of Technology and Design
Yuee Xie: School of Physics and Optoelectronics, Xiangtan University
Han Wang: Applied Physics, and Astronomy, Rensselaer Polytechnic Institute
Shengyuan A. Yang: Research Laboratory for Quantum Materials, Singapore University of Technology and Design
Shengbai Zhang: Applied Physics, and Astronomy, Rensselaer Polytechnic Institute

Nature Communications, 2017, vol. 8, issue 1, 1-7

Abstract: 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. 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.

Date: 2017
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/ncomms15641 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_ncomms15641

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/ncomms15641

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().