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Rev. Sci. Instrum. 80, 083903 (2009); http://dx.doi.org/10.1063/1.3190402 (7 pages)

A compact apparatus for studies of element and phase-resolved ferromagnetic resonance

D. A. Arena1, Y. Ding1, E. Vescovo1, S. Zohar2, Y. Guan2, and W. E. Bailey2

1National Synchrotron Light Source, Brookhaven National Laboratory, Upton, New York 11973, USA
2Department of Applied Physics, Material Science Program, Columbia University, New York, New York 10027, USA

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(Received 16 April 2009; accepted 8 July 2009; published online 11 August 2009)

We present a compact sample holder equipped with electromagnets and high frequency transmission lines; the sample holder is intended for combined x-ray magnetic circular dichroism (XMCD) and ferromagnetic resonance measurements (FMR). Time-resolved measurements of resonant x-ray detected FMR during forced precession are enabled by use of a rf excitation that is phase-locked to the storage ring bunch clock. Several applications of the combined XMCD+FMR technique are presented, demonstrating the flexibility of the experimental design.

© 2009 American Institute of Physics

Article Outline

  1. INTRODUCTION
  2. EXPERIMENTAL SETUP
    1. Hardware: Sample holder and vector magnet
    2. Microwave excitation and timing electronics
  3. APPLICATIONS
    1. Conventional XMCD spectroscopy and element-specific magnetometry
    2. In situ FMR spectroscopy
    3. Measurement of precession orbits
    4. Phase-resolved XMCD spectroscopy
    5. Element-resolved complex susceptibility (χ)
  4. OUTLOOK AND CONCLUSIONS

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KEYWORDS and PACS

PACS

  • 07.55.-w

    Magnetic instruments and components

  • 76.50.+g

    Ferromagnetic, antiferromagnetic, and ferrimagnetic resonances; spin-wave resonance

  • 78.20.Ls

    Magneto-optical effects

  • 07.85.-m

    X- and γ-ray instruments

ARTICLE DATA

PUBLICATION DATA

ISSN

0034-6748 (print)  
1089-7623 (online)

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