Investigation of a Spin Transition in a LaCoO3 Single Crystal by the Method of X-Ray Magnetic Circular Dichroism at the Cobalt K- and L2,3-Edges
- Joint Institute for Nuclear Research, Moscow oblast (Russia); Immanuel Kant Baltic Federal Univ., Kaliningrad (Russia)
- National Academy of Sciences of Belarus, Minsk (Belarus)
- European Synchrotron Radiation Facility (ESRF), Grenoble Cedex (France)
- Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
- Univ. of Oxford, Oxford (United Kingdom)
- Joint Institute for Nuclear Research, Moscow oblast (Russia)
Here, the spin transitions of cobalt ions in LaCoO3 single crystals have been studied by the method of X-ray magnetic circular dichroism (XMCD) at the K- and L2,3-edges of Co3+ ions. The orbital momentum of cobalt ions obtained for the K-edge at the 3d level in the region of the spin transition in the temperature range from 25 to 120 K increases by a factor of approximately 1.6, whereas the slope of the magnetization curve value in the same temperature range and magnetic field increases by a factor of more than 10. XMCD experiments at the cobalt L2,3)-edges demonstrate gradual growth of the ratio of the orbital momentum to the spin one L/S from 0.48 to 0.53 in the temperature range from 60 K to 120 K.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- Russian Foundation for Basic Research; Joint Institute for Nuclear Research (JINR); USDOE
- Grant/Contract Number:
- AC02-06CH11357
- OSTI ID:
- 1477189
- Journal Information:
- Physics of the Solid State, Vol. 60, Issue 2; ISSN 1063-7834
- Publisher:
- Springer NatureCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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