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Title: Investigation of a Spin Transition in a LaCoO 3 Single Crystal by the Method of X-Ray Magnetic Circular Dichroism at the Cobalt K- and L 2,3-Edges

Abstract

Here, the spin transitions of cobalt ions in LaCoO 3 single crystals have been studied by the method of X-ray magnetic circular dichroism (XMCD) at the K- and L 2,3-edges of Co 3+ 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 L 2,3)-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.

Authors:
 [1];  [2];  [2];  [3];  [3];  [4];  [5];  [6];  [6];  [6];  [6]
  1. Joint Institute for Nuclear Research, Moscow oblast (Russia); Immanuel Kant Baltic Federal Univ., Kaliningrad (Russia)
  2. National Academy of Sciences of Belarus, Minsk (Belarus)
  3. European Synchrotron Radiation Facility (ESRF), Grenoble Cedex (France)
  4. Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
  5. Univ. of Oxford, Oxford (United Kingdom)
  6. Joint Institute for Nuclear Research, Moscow oblast (Russia)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
Russian Foundation for Basic Research; Joint Institute for Nuclear Research (JINR); USDOE
OSTI Identifier:
1477189
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
Physics of the Solid State
Additional Journal Information:
Journal Volume: 60; Journal Issue: 2; Journal ID: ISSN 1063-7834
Publisher:
Springer Nature
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS

Citation Formats

Sikolenko, Vadim V., Troyanchuk, I. O., Karpinsky, D. V., Rogalev, A., Wilhelm, F., Rosenberg, R., Prabhakaran, D., Efimova, E. A., Efimov, V. V., Tiutiunnikov, S. I., and Bobrikov, I. A. 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. United States: N. p., 2018. Web. doi:10.1134/S1063783418020270.
Sikolenko, Vadim V., Troyanchuk, I. O., Karpinsky, D. V., Rogalev, A., Wilhelm, F., Rosenberg, R., Prabhakaran, D., Efimova, E. A., Efimov, V. V., Tiutiunnikov, S. I., & Bobrikov, I. A. 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. United States. doi:10.1134/S1063783418020270.
Sikolenko, Vadim V., Troyanchuk, I. O., Karpinsky, D. V., Rogalev, A., Wilhelm, F., Rosenberg, R., Prabhakaran, D., Efimova, E. A., Efimov, V. V., Tiutiunnikov, S. I., and Bobrikov, I. A. Thu . "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". United States. doi:10.1134/S1063783418020270. https://www.osti.gov/servlets/purl/1477189.
@article{osti_1477189,
title = {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},
author = {Sikolenko, Vadim V. and Troyanchuk, I. O. and Karpinsky, D. V. and Rogalev, A. and Wilhelm, F. and Rosenberg, R. and Prabhakaran, D. and Efimova, E. A. and Efimov, V. V. and Tiutiunnikov, S. I. and Bobrikov, I. A.},
abstractNote = {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.},
doi = {10.1134/S1063783418020270},
journal = {Physics of the Solid State},
number = 2,
volume = 60,
place = {United States},
year = {2018},
month = {3}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Figures / Tables:

Fig. 1 Fig. 1: PPMS magnetization curves vs. temperature (a) and vs. magnetic field (b) for LaCoO3

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Works referenced in this record:

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    Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.