Demonstrating Multi-bit Magnetic Memory in the Fe8 High Spin Molecule by Muon Spin Rotation

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Shafir, Oren ; Keren, Amit ; Maegawa, Satoru ; Ueda, Miki ; Amato, Alex ; Baines, Chris (2005)
  • Related identifiers: doi: 10.1103/PhysRevB.72.092410
  • Subject: Condensed Matter - Mesoscale and Nanoscale Physics | Condensed Matter - Other Condensed Matter
    arxiv: Computer Science::Databases

We developed a method to detect the quantum nature of high spin molecules using muon spin rotation, and a three-step field cycle ending always with the same field. We use this method to demonstrate that the Fe8 molecule can remember 6 (possibly 8) different histories (bits). A wide range of fields can be used to write a particular bit, and the information is stored in discrete states. Therefore, Fe8 can be used as a model compound for Multi-bit Magnetic Memory. Our experiment also paves the way for magnetic quantum tunneling detection in films.
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