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This content will become publicly available on August 2, 2018

Title: Hole doping, hybridization gaps, and electronic correlation in graphene on a platinum substrate

The interaction between graphene and substrates provides a viable route to enhance the functionality of both materials. Depending on the nature of electronic interaction at the interface, the electron band structure of graphene is strongly influenced, allowing us to make use of the intrinsic properties of graphene or to design additional functionalities in graphene. In this paper, we present an angle-resolved photoemission study on the interaction between graphene and a platinum substrate. The formation of an interface between graphene and platinum leads to a strong deviation in the electronic structure of graphene not only from its freestanding form but also from the behavior observed on typical metals. Finally, the combined study on the experimental and theoretical electron band structure unveils the unique electronic properties of graphene on a platinum substrate, which singles out graphene/platinum as a model system investigating graphene on a metallic substrate with strong interaction.
Authors:
 [1] ;  [1] ;  [1] ;  [2] ;  [1] ; ORCiD logo [3] ; ORCiD logo [4] ; ORCiD logo [1] ;  [5] ; ORCiD logo [1]
  1. Pusan National Univ., Busan (Korea, Republic of). Dept. of Physics
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source; Max Plank POSTECH/Korea Research Initiative (MPK), Gyeongbuk (Korea, Republic of). Max Planck-POSTECH/Hsinchu Center for Complex Phase Materials
  3. Univ. of Nebraska, Lincoln, NE (United States). Mechanical and Materials Engineering
  4. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source
  5. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Materials Sciences Division; Univ. of California, Berkeley, CA (United States). Dept. of Physics
Publication Date:
Grant/Contract Number:
AC02-05CH11231; 2015R1C1A1A01053065; 2017 K1A3A7A09016384; 2016 K1A4A4A01922028; NRF-2015R1C1A1A01053810
Type:
Accepted Manuscript
Journal Name:
Nanoscale
Additional Journal Information:
Journal Volume: 9; Journal Issue: 32; Journal ID: ISSN 2040-3364
Publisher:
Royal Society of Chemistry
Research Org:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Pusan National Univ., Busan (Korea, Republic of)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); National Research Foundation of Korea (NRF); Ministry of Science, ICT and Future Planning (MSIP) of Korea
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE
OSTI Identifier:
1436638