Quantum Dynamics of Spin Wave Propagation through Domain Walls

S. Yuan*, H. De Raedt, S. Miyashita

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

5 Citations (Scopus)
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Abstract

Through numerical solution of the time-dependent Schrödinger equation, we demonstrate that magnetic chains with uniaxial anisotropy support stable structures, separating ferromagnetic domains of opposite magnetization. These structures, domain walls in a quantum system, are shown to remain stable if they interact with a spin wave. We find that a domain wall transmits the longitudinal component of the spin excitations only. Our results suggests that continuous, classical spin models described by LLG equation cannot be used to describe spin wave-domain wall interaction in microscopic magnetic systems.
Original languageEnglish
Article number084703
Pages (from-to)art. - 084703
Number of pages4
JournalJournal of the Physics Society Japan
Volume75
Issue number8
DOIs
Publication statusPublished - Aug-2006

Keywords

  • quantum spin model
  • nanomagnetic
  • domain wall
  • Schrodinger equation
  • DEPENDENT SCHRODINGER-EQUATION
  • MAGNETIC-ANISOTROPY
  • FERROMAGNETS
  • CA3CO2O6
  • CHAINS

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