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Magnetic anisotropy of van der Waals absorbed iron(II) phthalocyanine layer on Bi2Te3

Y. R. Song, Y. Y. Zhang, F. Yang, K. F. Zhang, Canhua Liu, Dong Qian, C. L. Gao, S. B. Zhang, and Jin-Feng Jia
Phys. Rev. B 90, 180408(R) – Published 25 November 2014

Abstract

A self-assembled iron(II) phthalocyanine single layer adsorbed on the topological insulator Bi2Te3 was investigated by spin-polarized scanning tunneling microscopy and density functional theory calculations. Although the molecule-substrate interaction is dominated by a relatively weak van der Waals force, the local density of states of Fe was found to strongly depend on the adsorption sites, resulting in a supermolecular lattice. Spin-polarized measurements show that the magnetic moment of iron(II) phthalocyanine persists with an in-plane magnetic easy axis, which was further confirmed by density functional calculations.

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  • Received 3 August 2014
  • Revised 19 October 2014

DOI:https://doi.org/10.1103/PhysRevB.90.180408

©2014 American Physical Society

Authors & Affiliations

Y. R. Song1, Y. Y. Zhang2, F. Yang1, K. F. Zhang1, Canhua Liu1,3, Dong Qian1,3, C. L. Gao1,3,*, S. B. Zhang2, and Jin-Feng Jia1,3

  • 1Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education), Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
  • 2Department of Physics, Applied Physics and Astronomy, Rensselaer Polytechnic Institute, Troy, New York 12180, USA
  • 3Collaborative Innovation Center of Advanced Microstructures, Nanjing 210093, People's Republic of China

  • *Corresponding author: clgao@sjtu.edu.cn

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Issue

Vol. 90, Iss. 18 — 1 November 2014

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