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Title: Contact-induced spin polarization of monolayer hexagonal boron nitride on Ni(111)

Abstract

Hexagonal boron nitride (h-BN) is a promising barrier material for graphene spintronics. In this Letter, spin-polarized metastable de-excitation spectroscopy (SPMDS) is employed to study the spin-dependent electronic structure of monolayer h-BN/Ni(111). The extreme surface sensitivity of SPMDS enables us to elucidate a partial filling of the in-gap states of h-BN without any superposition of Ni 3d signals. The in-gap states are shown to have a considerable spin polarization parallel to the majority spin of Ni. The positive spin polarization is attributed to the π-d hybridization and the effective spin transfer to the nitrogen atoms at the h-BN/Ni(111) interface.

Authors:
; ; ; ;  [1];  [2]; ;  [3];  [1]
  1. Advanced Science Research Center, Japan Atomic Energy, Agency 2-4 Shirakata-Shirane, Tokai, Naka, Ibaraki 319-1195 (Japan)
  2. National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047 (Japan)
  3. L.V. Kirensky Institute of Physics SB RAS, Academgorodok, Krasnoyarsk 660036 (Russian Federation)
Publication Date:
OSTI Identifier:
22283299
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 104; Journal Issue: 5; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ABSORPTION SPECTROSCOPY; ATOMS; BORON NITRIDES; CRYSTAL STRUCTURE; DE-EXCITATION; ELECTRONIC STRUCTURE; GRAPHENE; INTERFACES; NICKEL; NITROGEN; SENSITIVITY; SPIN ORIENTATION; SURFACES

Citation Formats

Ohtomo, Manabu, Entani, Shiro, Matsumoto, Yoshihiro, Naramoto, Hiroshi, Sakai, Seiji, Yamauchi, Yasushi, Kuzubov, Alex A., Eliseeva, Natalya S., Siberian Federal University, 79 Svobodniy av., Krasnoyarsk 660041, Avramov, Pavel V., L.V. Kirensky Institute of Physics SB RAS, Academgorodok, Krasnoyarsk 660036, and Siberian Federal University, 79 Svobodniy av., Krasnoyarsk 660041. Contact-induced spin polarization of monolayer hexagonal boron nitride on Ni(111). United States: N. p., 2014. Web. doi:10.1063/1.4863324.
Ohtomo, Manabu, Entani, Shiro, Matsumoto, Yoshihiro, Naramoto, Hiroshi, Sakai, Seiji, Yamauchi, Yasushi, Kuzubov, Alex A., Eliseeva, Natalya S., Siberian Federal University, 79 Svobodniy av., Krasnoyarsk 660041, Avramov, Pavel V., L.V. Kirensky Institute of Physics SB RAS, Academgorodok, Krasnoyarsk 660036, & Siberian Federal University, 79 Svobodniy av., Krasnoyarsk 660041. Contact-induced spin polarization of monolayer hexagonal boron nitride on Ni(111). United States. https://doi.org/10.1063/1.4863324
Ohtomo, Manabu, Entani, Shiro, Matsumoto, Yoshihiro, Naramoto, Hiroshi, Sakai, Seiji, Yamauchi, Yasushi, Kuzubov, Alex A., Eliseeva, Natalya S., Siberian Federal University, 79 Svobodniy av., Krasnoyarsk 660041, Avramov, Pavel V., L.V. Kirensky Institute of Physics SB RAS, Academgorodok, Krasnoyarsk 660036, and Siberian Federal University, 79 Svobodniy av., Krasnoyarsk 660041. Mon . "Contact-induced spin polarization of monolayer hexagonal boron nitride on Ni(111)". United States. https://doi.org/10.1063/1.4863324.
@article{osti_22283299,
title = {Contact-induced spin polarization of monolayer hexagonal boron nitride on Ni(111)},
author = {Ohtomo, Manabu and Entani, Shiro and Matsumoto, Yoshihiro and Naramoto, Hiroshi and Sakai, Seiji and Yamauchi, Yasushi and Kuzubov, Alex A. and Eliseeva, Natalya S. and Siberian Federal University, 79 Svobodniy av., Krasnoyarsk 660041 and Avramov, Pavel V. and L.V. Kirensky Institute of Physics SB RAS, Academgorodok, Krasnoyarsk 660036 and Siberian Federal University, 79 Svobodniy av., Krasnoyarsk 660041},
abstractNote = {Hexagonal boron nitride (h-BN) is a promising barrier material for graphene spintronics. In this Letter, spin-polarized metastable de-excitation spectroscopy (SPMDS) is employed to study the spin-dependent electronic structure of monolayer h-BN/Ni(111). The extreme surface sensitivity of SPMDS enables us to elucidate a partial filling of the in-gap states of h-BN without any superposition of Ni 3d signals. The in-gap states are shown to have a considerable spin polarization parallel to the majority spin of Ni. The positive spin polarization is attributed to the π-d hybridization and the effective spin transfer to the nitrogen atoms at the h-BN/Ni(111) interface.},
doi = {10.1063/1.4863324},
url = {https://www.osti.gov/biblio/22283299}, journal = {Applied Physics Letters},
issn = {0003-6951},
number = 5,
volume = 104,
place = {United States},
year = {2014},
month = {2}
}