Charge-density wave in Ca-intercalated bilayer graphene induced by commensurate lattice matching

Ryota Shimizu, Katsuaki Sugawara, Kohei Kanetani, Katsuya Iwaya, Takafumi Sato, Takashi Takahashi, Taro Hitosugi

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

We report the emergence of a charge-density wave (CDW) in Ca-intercalated bilayer graphene (C6CaC6), the thinnest limit of superconducting C6Ca, observed by low-temperature, high-magnetic-field scanning tunneling microscopy or spectroscopy, and angle-resolved photoemission spectroscopy. While the possible superconductivity was not observed in epitaxially grown C6CaC6 on a SiC substrate, a CDW order different from that observed on the surface of bulk C6Ca was observed. It is inferred that the CDW state is induced by the potential modulation due to the commensurate lattice matching between the C6CaC6 film and the SiC substrate.

Original languageEnglish
Article number146103
JournalPhysical Review Letters
Volume114
Issue number14
DOIs
Publication statusPublished - 2015 Apr 7

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Charge-density wave in Ca-intercalated bilayer graphene induced by commensurate lattice matching'. Together they form a unique fingerprint.

  • Cite this