Willers, T., Cezar, J. C., Brookes, N. B., Hu, Z., Strigari, F., Koerner, P., Hollmann, N., Schmitz, D., Bianchi, A., Fisk, Z., Tanaka, A., Tjeng, L. H. and Severing, A. (2011). Magnetic Field Induced Orbital Polarization in Cubic YbInNi4: Determining the Quartet Ground State Using X-Ray Linear Dichroism. Phys. Rev. Lett., 107 (23). COLLEGE PK: AMER PHYSICAL SOC. ISSN 1079-7114

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Abstract

We have been able to induce a linear dichroic signal in the Yb M-5 x-ray absorption white line of cubic YbInNi4 by the application of a magnetic field. The nonzero integrated intensity of the magnetic field induced dichroic spectrum indicates a net noncubic 4f orbital polarization. A quantitative analysis of the temperature and field strength dependence establishes that the crystal-field ground state is a Gamma(8) quartet. The results demonstrate the potential of magnetic field induced linear dichroism as a new powerful approach for the investigation of the degeneracy and orbital degrees of freedom of cubic heavy-fermion and Kondo systems.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Willers, T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Cezar, J. C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Brookes, N. B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hu, Z.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Strigari, F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Koerner, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hollmann, N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Schmitz, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bianchi, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Fisk, Z.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Tanaka, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Tjeng, L. H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Severing, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-485105
DOI: 10.1103/PhysRevLett.107.236402
Journal or Publication Title: Phys. Rev. Lett.
Volume: 107
Number: 23
Date: 2011
Publisher: AMER PHYSICAL SOC
Place of Publication: COLLEGE PK
ISSN: 1079-7114
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
CEB6; TEMPERATURE; EXCITATIONS; DEPENDENCE; TRANSITION; SCATTERINGMultiple languages
Physics, MultidisciplinaryMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/48510

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