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Quantum dynamics of atomic magnets: Cotunneling and dipolar-biased tunneling

Physical Review Letters, ISSN: 1079-7114, Vol: 91, Issue: 25, Page: 257204
2003
  • 54
    Citations
  • 0
    Usage
  • 40
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    54
    • Citation Indexes
      53
    • Patent Family Citations
      1
      • Patent Families
        1
  • Captures
    40

Article Description

Multispin tunneling cross relaxations in an ensemble of weakly coupled [Formula presented] ions, mediated by weak anisotropic dipolar interactions, can be evidenced by ac-susceptibility measurements in a high temperature regime. Based on a four-body representation, including the rare-earth nuclear spin, two-ion tunneling mechanisms can be attributed to both dipolar-biased tunneling and cotunneling processes. The coreversal involving entangled pairs of magnetic moments is discussed with a particular emphasis, giving new evidence to elucidate the many-body quantum dynamics in dipolar spin glasses. © 2003 The American Physical Society.

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