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Frangou L, Oyarzún S, Auffret S, et al. Enhanced Spin Pumping Efficiency in Antiferromagnetic IrMn Thin Films around the Magnetic Phase Transition. Phys Rev Lett. 2016;116(7):077203doi: 10.1103/PhysRevLett.116.077203.
Frangou, L., Oyarzún, S., Auffret, S., Vila, L., Gambarelli, S., & Baltz, V. (2016). Enhanced Spin Pumping Efficiency in Antiferromagnetic IrMn Thin Films around the Magnetic Phase Transition. Physical review letters, 116(7), 077203. https://doi.org/10.1103/PhysRevLett.116.077203
Frangou, L, et al. "Enhanced Spin Pumping Efficiency in Antiferromagnetic IrMn Thin Films around the Magnetic Phase Transition." Physical review letters vol. 116,7 (2016): 077203. doi: https://doi.org/10.1103/PhysRevLett.116.077203
Frangou L, Oyarzún S, Auffret S, Vila L, Gambarelli S, Baltz V. Enhanced Spin Pumping Efficiency in Antiferromagnetic IrMn Thin Films around the Magnetic Phase Transition. Phys Rev Lett. 2016 Feb 19;116(7):077203. doi: 10.1103/PhysRevLett.116.077203. Epub 2016 Feb 17. PMID: 26943556.
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Phys Rev Lett. 2016 Feb 19;116(7):077203. doi: 10.1103/PhysRevLett.116.077203. Epub 2016 Feb 17.

Enhanced Spin Pumping Efficiency in Antiferromagnetic IrMn Thin Films around the Magnetic Phase Transition.

Physical review letters

L Frangou, S Oyarzún, S Auffret, L Vila, S Gambarelli, V Baltz

Affiliations

  1. Univ. Grenoble Alpes, SPINTEC, F-38000 Grenoble, France.
  2. CNRS, SPINTEC, F-38000 Grenoble, France.
  3. CEA, INAC-SPINTEC, F-38000 Grenoble, France.
  4. Univ. Grenoble Alpes, NM, F-38000 Grenoble, France.
  5. CEA, INAC-NM, F-38000 Grenoble, France.
  6. Univ. Grenoble Alpes, SCIB, F-38000 Grenoble, France.
  7. CEA, INAC-SCIB, F-38000 Grenoble, France.

PMID: 26943556 DOI: 10.1103/PhysRevLett.116.077203

Abstract

We report the measurement of a spin pumping effect due to fluctuations of the magnetic order of IrMn thin films. A precessing NiFe ferromagnet injected spins into IrMn spin sinks, and enhanced damping was observed around the IrMn magnetic phase transition. Our data were compared to a recently developed theory and converted into interfacial spin mixing conductance enhancements. By spotting the spin pumping peak, the thickness dependence of the IrMn critical temperature could be determined and the characteristic length for the spin-spin interactions was deduced.

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