Crystal field ground state of the orthorhombic Kondo semiconductors CeOs${}_{2}$Al${}_{10}$ and CeFe${}_{2}$Al${}_{10}$

Crystal field ground state of the orthorhombic Kondo semiconductors CeOs $_{2}$ Al $_{10}$ and CeFe $_{2}$ Al $_{10}$

F. Strigari, T. Willers, Y. Muro, K. Yutani, T. Takabatake, Z. Hu, S. Agrestini, C.-Y. Kuo, Y.-Y. Chin, H.-J. Lin, T. W. Pi, C. T. Chen, E. Weschke, E. Schierle, A. Tanaka, M. W. Haverkort, L. H. Tjeng, and A. Severing

Phys. Rev. B 87, 125119 – Published 14 March 2013

Abstract

Here we present linear-polarization-dependent soft x-ray absorption spectroscopy data at the Ce $M_{4, 5}$ edges of CeOs $_{2}$ Al $_{10}$ and CeFe $_{2}$ Al $_{10}$ . Despite the strong hybridization between $4 f$ and conduction electrons and the existence of spin gaps as seen in inelastic neutron scattering, we were able to determine the crystal field ground state wave functions by combining our spectroscopy data with magnetization measurements. The results quantitatively explain the small ordered moment along $c$ and the measured magnetic moment along the easy $a$ axis in CeOs $_{2}$ Al $_{10}$ .

Received 22 October 2012
Corrected 20 March 2013

DOI:https://doi.org/10.1103/PhysRevB.87.125119

Corrections

20 March 2013

Erratum

Publisher's Note: Crystal field ground state of the orthorhombic Kondo semiconductors CeOs $_{2}$ Al $_{10}$ and CeFe $_{2}$ Al $_{10}$ [Phys. Rev. B 87, 125119 (2013)]

F. Strigari, T. Willers, Y. Muro, K. Yutani, T. Takabatake, Z. Hu, S. Agrestini, C.-Y. Kuo, Y.-Y. Chin, H.-J. Lin, T. W. Pi, C. T. Chen, E. Weschke, E. Schierle, A. Tanaka, M. W. Haverkort, L. H. Tjeng, and A. Severing

Phys. Rev. B 87, 119906 (2013)

Authors & Affiliations

F. Strigari¹, T. Willers¹, Y. Muro², K. Yutani², T. Takabatake^2,3, Z. Hu⁴, S. Agrestini⁴, C.-Y. Kuo⁴, Y.-Y. Chin⁵, H.-J. Lin⁵, T. W. Pi⁵, C. T. Chen⁵, E. Weschke⁶, E. Schierle⁶, A. Tanaka², M. W. Haverkort^7,8, L. H. Tjeng⁴, and A. Severing¹

¹Institute of Physics II, University of Cologne, Zülpicher Straße 77, 50937 Cologne, Germany
²Department of Quantum Matter, AdSM, Hiroshima University, Higashi-Hiroshima 739-8530, Japan
³Institute for Advanced Materials Research, Hiroshima University, Higashi-Hiroshima 739-8530, Japan
⁴Max Planck Institute for Chemical Physics of Solids, Nöthnizer Straße 40, 01187 Dresden, Germany
⁵National Synchrotron Radiation Research Center (NSRRC), 101 Hsin-Ann Road, Hsinchu 30077, Taiwan
⁶Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Straße 15, 12489 Berlin, Germany
⁷Max Planck Institute for Solid State Research, 70569 Stuttgart, Germany
⁸Department of Physics and Astronomy, University of British Columbia, Vancouver, Canada V6T1Z1

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Vol. 87, Iss. 12 — 15 March 2013

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