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O1s and Mn2p NEXAFS on single-layered La1-xSr1+xMnO4: crystal field effect versus orbital coupling mechanism

  • Solid and Condensed State Physics
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Abstract.

O1s and Mn2p near-edge X-ray absorption spectroscopy on La1-xSr1+xMnO4 (0 ≤x ≤0.5) single crystals shows that Sr doping does not only provide holes to the system but also induces a continuous transfer of electrons from out-of-plane d3z2-r2 to in-plane d3x2-r2/d3y2-r2 orbitals. Furthermore, a non-vanishing electron occupation of in-plane dx2-y2 and out-of-plane d3z2-r2 orbitals is observed up to relatively high doping contents. These findings demonstrate that the energy difference between all these orbital types has to be very small and manifest that the orbital degree of freedom is determined not just by crystal field effects but also by orbital coupling. Moreover, the doping-dependent transfer of spectral weight observed in the current data identifies La1-xSr1+xMnO4 as a charge-transfer insulator.

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References

  • Y. Tokura, N. Nagosa, Science 288, 462 (2000)

    Article  ADS  Google Scholar 

  • Y. Moritomo, Y. Tomioka, A. Asamitsu, Y. Tokura, Y. Matsui,Phys. Rev. B 51, 3297 (1995)

    Article  ADS  Google Scholar 

  • B.J. Sternlieb, J.P. Hill, U.C. Wildgruber, G.M. Luke, B. Nachumi, Y. Moritomo, Y. Tokura, Phys. Rev. Lett. 76, 2169 (1996)

    Article  ADS  Google Scholar 

  • Y. Murakami, H. Kawada, H. Kawata, M. Tanaka, T. Arima, Y. Moritomo, Y. Tokura, Phys. Rev. Lett. 80, 1932 (1998)

    Article  ADS  Google Scholar 

  • J.-C. Bouloux, J.-L. Soubeyroux, A. Daoudi, G. Leflem, Mat. Res. Bull. 16, 855 (1981)

    Article  Google Scholar 

  • P. Reutler, O. Friedt, B. Büchner, M. Braden, A. Revcolevschi, J. Cryst. Growth 249, 222 (2003); P. Reutler, Ph.D. thesis

    Article  Google Scholar 

  • M. Tokunaga, N. Miura, Y. Moritomo, Y. Tokura, Phys. Rev. B 59, 11151 (1999)

    Article  ADS  Google Scholar 

  • C. Baumann, G. Allodi, B. Büchner, R. De Renzi, P. Reutler, A. Revcolevschi, Physica B 326, 505 (2003)

    Article  ADS  Google Scholar 

  • S. Larochelle, A. Mehta, N. Kaneko, P.K. Mang, A.F. Panchula, L. Zhou, J. Arthur, M. Greven, Phys. Rev. Lett. 87, 095502 (2001)

    Article  ADS  Google Scholar 

  • Y. Murakami, J.P. Hill, D. Gibbs, M. Blume, I. Koyama, M. Tanaka, H. Kawata, T. Arima, Y. Tokura, K. Hirota, Y. Endoh, Phys. Rev. Lett. 81, 582 (1998)

    Article  ADS  Google Scholar 

  • S. Ishihara, S. Maekawa, Phys. Rev. Lett. 80, 3799 (1998)

    Article  ADS  Google Scholar 

  • M. Benfatto, Y. Joly, C.R. Natoli, Phys. Rev. Lett. 83, 636 (1999)

    Article  ADS  Google Scholar 

  • I.S. Elfimov, V.I. Anisimov, G.A. Sawatzky, Phys. Rev. Lett. 82, 4264 (1999)

    Article  ADS  Google Scholar 

  • S.B. Wilkins, P.D. Spencer, P.D. Hatton, S.P. Collins, M.D. Roper, D. Prabhakaran, A.T. Boothroyd, Phys. Rev. Lett. 91, 167205 (2003)

    Article  ADS  Google Scholar 

  • S.S. Dhesi, A. Mirone, C. De Nadaï, P. Ohresser, P. Bencok, N.B. Brookes, P. Reutler, A. Revcolevschi, A. Tagliaferri, O. Toulemonde, G. van der Laan, Phys. Rev. Lett. 92, 056403 (2004)

    Article  ADS  Google Scholar 

  • D.J. Huang, W.B. Wu, G.Y. Guo, H.-J. Lin, T.Y. Hou, C.F. Chang, C.T. Chen, A. Fujimori, T. Kimura, H.B. Huang, A. Tanaka, T. Jo, Phys. Rev. Lett. 92, 087202 (2004)

    Article  ADS  Google Scholar 

  • S.B. Wilkins, N. Stojić, T.A.W. Beale, N. Binggeli, C.W.M. Castleton, P. Bencok, D. Prabhakaran, A.T. Boothroyd, P.D. Hatton, M. Altarelli, Phys. Rev. B 71, 245102 (2005)

    Article  ADS  Google Scholar 

  • M. Merz, N. Nücker, E. Pellegrin, P. Schweiss, S. Schuppler, M. Kielwein, M. Knupfer, M.S. Golden, J. Fink, C.T. Chen, V. Chakarian, Y.U. Idzerda, A. Erb, Phys. Rev. B 55, 9160 (1997); M. Merz, N. Nücker, P. Schweiss, S. Schuppler, C.T. Chen, V. Chakarian, J. Freeland, Y.U. Idzerda, M. Kläser, G. Müller-Vogt, Th. Wolf, Phys. Rev. Lett. 80, 5192 (1998)

    Article  ADS  Google Scholar 

  • M. Merz, to be submitted

  • D. Senff, P. Reutler, M. Braden, O. Friedt, D. Bruns, A. Cousson, F. Bourée, M. Merz, B. Büchner, A. Revcolevschi, Phys. Rev. B 71, 024425 (2005); in this article the nominal Sr content of our x = 0.13 sample was determined to 0.125

    Article  ADS  Google Scholar 

  • In reference Senff04, the doping- and temperature-dependent changes of the Mn-O(1) and Mn-O(2) bond lenghts and of the thermal expansion were interpreted in terms of the orbital degree of freedom. Bond distances, however, are only an indirect measure of orbital occupations as seen, e.g., for isostructural LaSrAlO4 where an elongated octahedron appears even though the Al3+ ion is not Jahn-Teller active

  • Nevertheless, such hybridizations may lead to a small background with doping-independent intensity in the spectra.

  • J. van Elp, A. Tanaka, Phys. Rev. B 60, 5331 (1999)

    Article  ADS  Google Scholar 

  • The symmetry-equivalent E\(\|\)a and E\(\|\)b spectra are identical within the experimental error and, thus, the E\(\|\)b data are left out for clarity

  • Details on the integration method for obtaining hole counts are given in reference Merz97

  • F.M.F. de Groot, J.C. Fuggle, B.T. Thole, G.A. Sawatzky, Phys. Rev. B 41, 928 (1990)

    Article  ADS  Google Scholar 

  • U. Staub, V. Scagnoli, A.M. Mulders, K. Katsumata, Z. Honda, H. Grimmer, M. Horisberger, J.M. Tonnerre, Phys. Rev. B 71, 214421 (2005)

    Article  ADS  Google Scholar 

  • D.I. Khomskii, K.I. Kugel, Phys. Rev. B 67, 134401 (2003)

    Article  ADS  Google Scholar 

  • J. van den Brink, G. Khaliullin, D.I. Khomskii, Phys. Rev. Lett. 83, 5118 (1999)

    Article  ADS  Google Scholar 

Download references

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Authors and Affiliations

  1. Institut für Kristallographie, Jägerstraße 17-19, RWTH Aachen, 52066, Aachen, Germany

    M. Merz

  2. Institute for Solid State Research, P.O. Box 270116, IFW Dresden, 01171, Dresden, Germany

    P. Reutler & B. Büchner

  3. Naval Research Laboratory, Code 6345, Washington, DC, 20375, USA

    D. Arena

  4. Department of Physics, Montana State University, Bozeman, MT, 59717-3840, USA

    J. Dvorak & Y. U. Idzerda

  5. Forschungszentrum Karlsruhe, Institut für Festkörperphysik, 76021, Karlsruhe, Germany

    S. Tokumitsu & S. Schuppler

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  1. M. Merz
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  2. P. Reutler
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  3. B. Büchner
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  7. S. Tokumitsu
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  8. S. Schuppler
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Correspondence to M. Merz.

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Merz, M., Reutler, P., Büchner, B. et al. O1s and Mn2p NEXAFS on single-layered La1-xSr1+xMnO4: crystal field effect versus orbital coupling mechanism. Eur. Phys. J. B 51, 315–319 (2006). https://doi.org/10.1140/epjb/e2006-00228-4

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  • DOI: https://doi.org/10.1140/epjb/e2006-00228-4

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