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Title: Disentangling transient charge order from structural dynamics contributions during coherent atomic motion studied by ultrafast resonant x-ray diffraction [Disentangling charge and structural contributions during coherent atomic motions studied by ultrafast resonant x-ray diffraction]

Abstract

We report on the ultrafast dynamics of charge order and structural response during the photoinduced suppression of charge and orbital order in a mixed-valence manganite. Employing femtosecond time-resolved resonant x-ray diffraction below and at the Mn K absorption edge, we present a method to disentangle the transient charge order and structural dynamics in thin films of Pr 0.5Ca 0.5MnO 3. Based on the static resonant scattering spectra, we extract the dispersion correction of charge-ordered Mn 3+ and Mn 4+ ions, allowing us to separate the transient contributions of purely charge order from structural contributions to the scattering amplitude after optical excitation. Furthermore, our finding of a coherent structural mode at around 2.3THz, which primarily modulates the lattice but does not strongly affect the charge order, supports the picture of the charge order being the driving force of the combined charge, orbital, and structural transition.

Authors:
 [1];  [2];  [2];  [2];  [3];  [4];  [5];  [2];  [3];  [3];  [6];  [7];  [7];  [7];  [7];  [7];  [7];  [8];  [9];  [9] more »;  [3];  [2];  [10] « less
  1. Paul Scherrer Inst. (PSI), Villigen (Switzerland); Fritz-Haber-Institut der Max-Planck-Gesellschaft, Berlin (Germany)
  2. Paul Scherrer Inst. (PSI), Villigen (Switzerland)
  3. ETH Zurich, Zurich (Switzerland)
  4. Paul Scherrer Inst. (PSI), Villigen (Switzerland); Lund Univ., Lund (Sweden)
  5. Paul Scherrer Inst. (PSI), Villigen (Switzerland); Brigham Young Univ., Provo, UT (United States)
  6. Paul Scherrer Inst. (PSI), Villigen (Switzerland); ETH Zurich, Zurich (Switzerland)
  7. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  8. RIKEN Center for Emergent Matter Science, Wako (Japan); Paul Scherrer Inst. (PSI), Villigen (Switzerland)
  9. Univ. of Tokyo, Tokyo (Japan); RIKEN Center for Emergent Matter Science, Wako (Japan)
  10. Paul Scherrer Inst. (PSI), Villigen (Switzerland); Japan Science and Technology Agency, Kawaguchi (Japan)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1526469
Alternate Identifier(s):
OSTI ID: 1506127
Grant/Contract Number:  
AC02-76SF00515; 200021_124496; 200021_144115; RE 3977/1-1
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 99; Journal Issue: 13; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 36 MATERIALS SCIENCE

Citation Formats

Rettig, L., Caviezel, A., Mariager, S. O., Ingold, G., Dornes, C., Huang, S. -W., Johnson, J. A., Radovic, M., Huber, T., Kubacka, T., Ferrer, A., Lemke, H. T., Chollet, M., Zhu, D., Glownia, J. M., Sikorski, M., Robert, A., Nakamura, M., Kawasaki, M., Tokura, Y., Johnson, S. L., Beaud, P., and Staub, U. Disentangling transient charge order from structural dynamics contributions during coherent atomic motion studied by ultrafast resonant x-ray diffraction [Disentangling charge and structural contributions during coherent atomic motions studied by ultrafast resonant x-ray diffraction]. United States: N. p., 2019. Web. doi:10.1103/physrevb.99.134302.
Rettig, L., Caviezel, A., Mariager, S. O., Ingold, G., Dornes, C., Huang, S. -W., Johnson, J. A., Radovic, M., Huber, T., Kubacka, T., Ferrer, A., Lemke, H. T., Chollet, M., Zhu, D., Glownia, J. M., Sikorski, M., Robert, A., Nakamura, M., Kawasaki, M., Tokura, Y., Johnson, S. L., Beaud, P., & Staub, U. Disentangling transient charge order from structural dynamics contributions during coherent atomic motion studied by ultrafast resonant x-ray diffraction [Disentangling charge and structural contributions during coherent atomic motions studied by ultrafast resonant x-ray diffraction]. United States. doi:10.1103/physrevb.99.134302.
Rettig, L., Caviezel, A., Mariager, S. O., Ingold, G., Dornes, C., Huang, S. -W., Johnson, J. A., Radovic, M., Huber, T., Kubacka, T., Ferrer, A., Lemke, H. T., Chollet, M., Zhu, D., Glownia, J. M., Sikorski, M., Robert, A., Nakamura, M., Kawasaki, M., Tokura, Y., Johnson, S. L., Beaud, P., and Staub, U. Tue . "Disentangling transient charge order from structural dynamics contributions during coherent atomic motion studied by ultrafast resonant x-ray diffraction [Disentangling charge and structural contributions during coherent atomic motions studied by ultrafast resonant x-ray diffraction]". United States. doi:10.1103/physrevb.99.134302.
@article{osti_1526469,
title = {Disentangling transient charge order from structural dynamics contributions during coherent atomic motion studied by ultrafast resonant x-ray diffraction [Disentangling charge and structural contributions during coherent atomic motions studied by ultrafast resonant x-ray diffraction]},
author = {Rettig, L. and Caviezel, A. and Mariager, S. O. and Ingold, G. and Dornes, C. and Huang, S. -W. and Johnson, J. A. and Radovic, M. and Huber, T. and Kubacka, T. and Ferrer, A. and Lemke, H. T. and Chollet, M. and Zhu, D. and Glownia, J. M. and Sikorski, M. and Robert, A. and Nakamura, M. and Kawasaki, M. and Tokura, Y. and Johnson, S. L. and Beaud, P. and Staub, U.},
abstractNote = {We report on the ultrafast dynamics of charge order and structural response during the photoinduced suppression of charge and orbital order in a mixed-valence manganite. Employing femtosecond time-resolved resonant x-ray diffraction below and at the Mn K absorption edge, we present a method to disentangle the transient charge order and structural dynamics in thin films of Pr0.5Ca0.5MnO3. Based on the static resonant scattering spectra, we extract the dispersion correction of charge-ordered Mn3+ and Mn4+ ions, allowing us to separate the transient contributions of purely charge order from structural contributions to the scattering amplitude after optical excitation. Furthermore, our finding of a coherent structural mode at around 2.3THz, which primarily modulates the lattice but does not strongly affect the charge order, supports the picture of the charge order being the driving force of the combined charge, orbital, and structural transition.},
doi = {10.1103/physrevb.99.134302},
journal = {Physical Review B},
number = 13,
volume = 99,
place = {United States},
year = {2019},
month = {4}
}

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Works referenced in this record:

X-Ray Interactions: Photoabsorption, Scattering, Transmission, and Reflection at E = 50-30,000 eV, Z = 1-92
journal, July 1993

  • Henke, B. L.; Gullikson, E. M.; Davis, J. C.
  • Atomic Data and Nuclear Data Tables, Vol. 54, Issue 2, p. 181-342
  • DOI: 10.1006/adnd.1993.1013