Probing strongly correlated 4f-orbital symmetry of the ground state in yb compounds by linear dichroism in core-level photoemission

Takeo Mori, Satoshi Kitayama, Yuina Kanai, Sho Naimen, Hidenori Fujiwara, Atsushi Higashiya, Kenji Tamasaku, Arata Tanaka, Kensei Terashima, Shin Imada, Akira Yasui, Yuji Saitoh, Kohei Yamagami, Kohei Yano, Taiki Matsumoto, Takayuki Kiss, Makina Yabashi, Tetsuya Ishikawa, Shigemasa Suga, Yoshichika OnukiTakao Ebihara, Akira Sekiyama

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14 Citations (Scopus)

Abstract

We show that the strongly correlated 4 f-orbital symmetry of the ground state is revealed by linear dichroism in corelevel photoemission spectra, as we have discovered for YbRh2Si2 and YbCu2Si2. Theoretical analysis shows us that the linear dichroism reflects the anisotropic charge distributions resulting from a crystalline electric field. We have successfully determined the ground-state 4 f symmetry for both compounds from the polarization-dependent angleresolved core-level spectra at a temperature well below the first excitation energy. The excited-state symmetry is also probed by temperature dependence of the linear dichroism where the high measurement temperatures are on the order of the crystal-field-splitting energies.

Original languageEnglish
Article number123702
Journaljournal of the physical society of japan
Volume83
Issue number12
DOIs
Publication statusPublished - Dec 15 2014

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Mori, T., Kitayama, S., Kanai, Y., Naimen, S., Fujiwara, H., Higashiya, A., Tamasaku, K., Tanaka, A., Terashima, K., Imada, S., Yasui, A., Saitoh, Y., Yamagami, K., Yano, K., Matsumoto, T., Kiss, T., Yabashi, M., Ishikawa, T., Suga, S., ... Sekiyama, A. (2014). Probing strongly correlated 4f-orbital symmetry of the ground state in yb compounds by linear dichroism in core-level photoemission. journal of the physical society of japan, 83(12), [123702]. https://doi.org/10.7566/JPSJ.83.123702