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Stability and magnetism of fcc single-crystal nickel nanowires by first principles calculations

Cheng Zhi-Da Zhu Jing Sun Tie-Yu

Stability and magnetism of fcc single-crystal nickel nanowires by first principles calculations

Cheng Zhi-Da, Zhu Jing, Sun Tie-Yu
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Publishing process
  • Received Date:  22 June 2010
  • Accepted Date:  01 July 2010
  • Published Online:  15 March 2011

Stability and magnetism of fcc single-crystal nickel nanowires by first principles calculations

  • 1. Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China

Abstract: The stability and magnetism in fcc single-crystal nickel nanowires with low-index axial direction are studied by first principles methods in this work. For fcc nickel nanowires, it is found that [110] is the most stable direction, while [111] is less stable and [001] the least stable. Nickel nanowires can be described by a simple core-shell model. The core atoms of nanowires have almost the same magnetic moment as in bulk metal. Surface atoms of nickel nanowires have larger atomic magnetic moments in varying degrees related to axial direction. In our calculated nanowires with low-index axial directions, surface atoms in [110] nanowires have lowest magnetic moments while those in [100] nanowires have the largest.

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