Quantitative study of the f occupation in CeMIn5 and other cerium compounds with hard X-rays

Sundermann, M.; Strigari, F.; Willers, T.; Weinen, J.; Liao, Y. F.; Tsuei, K. -D.; Hiraoka, N.; Ishii, H.; Yamaoka, H.; Mizuki, J.; Zekko, Y.; Bauer, E. D.; Sarrao, J. L.; Thompson, J. D.; Lejay, P.; Muro, Y.; Yutani, K.; Takabatake, T.; Tanaka, A.; Hollmann, N.; Tjeng, L. H.; Severing, A.

doi:10.1016/j.elspec.2016.02.002

Title: Quantitative study of the f occupation in CeMIn5 and other cerium compounds with hard X-rays

Abstract

We present bulk-sensitive hard X-ray photoelectron spectroscopy (HAXPES) data of the Ce3d core levels and lifetime-reduced L-edge X-ray absorption spectroscopy (XAS) in the partial fluorescence yield (PFY) mode of the CeMIn₅ family with M = Co, Rh, and Ir. The HAXPES data are analyzed quantitatively with a combination of full multiplet and configuration interaction model which allows correcting for the strong plasmons in the CeMIn₅ HAXPES data, and reliable weights w_n of the different fⁿ contributions in the ground state are determined. The CeMIn₅ results are compared to HAXPES data of other heavy fermion compounds and a systematic decrease of the hybridization strength V_eff from CePd₃ to CeRh₃B₂ to CeRu₂Si₂ is observed, while it is smallest for the three CeMIn₅ compounds. The f-occupation, however, increases in the same sequence and is close to one for the CeMIn₅ family. The PFY-XAS data confirm an identical f-occupation in the three CeMIn₅ compounds and a phenomenological fit to these PFY-XAS data combined with a configuration interaction model yields consistent results.

Publication Date:: Sun May 01 00:00:00 EDT 2016

Research Org.:: Univ. of Cologne (Germany); Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); National Synchrotron Radiation Research Center, Hsinchu (Taiwan)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES); German Research Foundation (DFG)

OSTI Identifier:: 1306682

Alternate Identifier(s):: OSTI ID: 1415393

Report Number(s):: LA-UR-17-24464
Journal ID: ISSN 0368-2048; S0368204816300123; PII: S0368204816300123

Grant/Contract Number:: AC52-06NA25396; 600575

Resource Type:: Published Article

Journal Name:: Journal of Electron Spectroscopy and Related Phenomena

Additional Journal Information:: Journal Name: Journal of Electron Spectroscopy and Related Phenomena Journal Volume: 209 Journal Issue: C; Journal ID: ISSN 0368-2048

Publisher:: Elsevier

Country of Publication:: Netherlands

Language:: English

Subject:: 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; heavy fermion; valence; hard x-ray photoelectron spectroscopy; L-edge x-ray absorption; full multiplet; single impurity Anderson model

Citation Formats


                    Sundermann, M., Strigari, F., Willers, T., Weinen, J., Liao, Y. F., Tsuei, K. -D., Hiraoka, N., Ishii, H., Yamaoka, H., Mizuki, J., Zekko, Y., Bauer, E. D., Sarrao, J. L., Thompson, J. D., Lejay, P., Muro, Y., Yutani, K., Takabatake, T., Tanaka, A., Hollmann, N., Tjeng, L. H., and Severing, A. Quantitative study of the f occupation in CeMIn5 and other cerium compounds with hard X-rays.  Netherlands: N. p., 2016. 
Web.  doi:10.1016/j.elspec.2016.02.002.

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                    Sundermann, M., Strigari, F., Willers, T., Weinen, J., Liao, Y. F., Tsuei, K. -D., Hiraoka, N., Ishii, H., Yamaoka, H., Mizuki, J., Zekko, Y., Bauer, E. D., Sarrao, J. L., Thompson, J. D., Lejay, P., Muro, Y., Yutani, K., Takabatake, T., Tanaka, A., Hollmann, N., Tjeng, L. H., & Severing, A. Quantitative study of the f occupation in CeMIn5 and other cerium compounds with hard X-rays.  Netherlands.  https://doi.org/10.1016/j.elspec.2016.02.002

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                    Sundermann, M., Strigari, F., Willers, T., Weinen, J., Liao, Y. F., Tsuei, K. -D., Hiraoka, N., Ishii, H., Yamaoka, H., Mizuki, J., Zekko, Y., Bauer, E. D., Sarrao, J. L., Thompson, J. D., Lejay, P., Muro, Y., Yutani, K., Takabatake, T., Tanaka, A., Hollmann, N., Tjeng, L. H., and Severing, A. Sun .  
"Quantitative study of the f occupation in CeMIn5 and other cerium compounds with hard X-rays".  Netherlands.  https://doi.org/10.1016/j.elspec.2016.02.002.

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@article{osti_1306682,

  title        = {Quantitative study of the f occupation in CeMIn5 and other cerium compounds with hard X-rays},

  author       = {Sundermann, M. and Strigari, F. and Willers, T. and Weinen, J. and Liao, Y. F. and Tsuei, K. -D. and Hiraoka, N. and Ishii, H. and Yamaoka, H. and Mizuki, J. and Zekko, Y. and Bauer, E. D. and Sarrao, J. L. and Thompson, J. D. and Lejay, P. and Muro, Y. and Yutani, K. and Takabatake, T. and Tanaka, A. and Hollmann, N. and Tjeng, L. H. and Severing, A.},

  abstractNote = {We present bulk-sensitive hard X-ray photoelectron spectroscopy (HAXPES) data of the Ce3d core levels and lifetime-reduced L-edge X-ray absorption spectroscopy (XAS) in the partial fluorescence yield (PFY) mode of the CeMIn5 family with M = Co, Rh, and Ir. The HAXPES data are analyzed quantitatively with a combination of full multiplet and configuration interaction model which allows correcting for the strong plasmons in the CeMIn5 HAXPES data, and reliable weights wn of the different fn contributions in the ground state are determined. The CeMIn5 results are compared to HAXPES data of other heavy fermion compounds and a systematic decrease of the hybridization strength Veff from CePd3 to CeRh3B2 to CeRu2Si2 is observed, while it is smallest for the three CeMIn5 compounds. The f-occupation, however, increases in the same sequence and is close to one for the CeMIn5 family. The PFY-XAS data confirm an identical f-occupation in the three CeMIn5 compounds and a phenomenological fit to these PFY-XAS data combined with a configuration interaction model yields consistent results.},

  doi          = {10.1016/j.elspec.2016.02.002},

  journal      = {Journal of Electron Spectroscopy and Related Phenomena},

  number       = C,

  volume       = 209,

  place        = {Netherlands},

  year         = {Sun May 01 00:00:00 EDT 2016},

  month        = {Sun May 01 00:00:00 EDT 2016}

}

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Role of antisite disorder, electron-electron correlations, and a surface valence transition in the electronic structure of ${CeMnNi}_{4}$
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Sadhukhan, Pampa; D′Souza, Sunil Wilfred; Singh, Vipin Kumar
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Role of antisite disorder, electron-electron correlations, and a surface valence transition in the electronic structure of ${CeMnNi}_{4}$
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Physical Review B, Vol. 99, Issue 3
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Orientation of the ground-state orbital in ${CeCoIn}_{5}$ and ${CeRhIn}_{5}$
journal, June 2019

Sundermann, M.; Amorese, A.; Strigari, F.
Physical Review B, Vol. 99, Issue 23
DOI: 10.1103/physrevb.99.235143

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Title: Quantitative study of the f occupation in CeMIn5 and other cerium compounds with hard X-rays

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