Electronic Transport in Single-Molecule Magnets on Metallic Surfaces

Gwang-Hee Kim and Tae-Suk Kim
Phys. Rev. Lett. 92, 137203 – Published 2 April 2004

Abstract

An electron transport is studied in the system that consists of a scanning tunneling microscopy, single-molecule magnet metal. Because of quantum tunneling of magnetization in a single-molecule magnet, linear response conductance exhibits stepwise behavior with increasing longitudinal field, and each step is maximized at a certain value of field sweeping speed. The conductance at each step oscillates as a function of the additional transverse magnetic field along the hard axis. A rigorous theory is presented that combines the exchange model with the Landau-Zener model.

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  • Received 14 November 2003

DOI:https://doi.org/10.1103/PhysRevLett.92.137203

©2004 American Physical Society

Authors & Affiliations

Gwang-Hee Kim1,* and Tae-Suk Kim2,†

  • 1Department of Physics, Sejong University, Seoul 143-747, Republic of Korea
  • 2School of Physics, Seoul National University, Seoul 151-742, Republic of Korea

  • *Electronic address: gkim@sejong.ac.kr
  • Electronic address: tskim@phya.snu.ac.kr

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Issue

Vol. 92, Iss. 13 — 2 April 2004

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