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Chuang YD, Lee WS, Kung YF, Sorini AP, Moritz B, Moore RG, Patthey L, Trigo M, Lu DH, Kirchmann PS, Yi M, Krupin O, Langner M, Zhu Y, Zhou SY, Reis DA, Huse N, Robinson JS, Kaindl RA, Schoenlein RW, Johnson SL, Först M, Doering D, Denes P, Schlotter WF, Turner JJ, Sasagawa T, Hussain Z, Shen ZX, Devereaux TP. Real-time manifestation of strongly coupled spin and charge order parameters in stripe-ordered La(1.75)Sr(0.25)NiO(4) nickelate crystals using time-resolved resonant x-ray diffraction. Phys Rev Lett 2013; 110:127404. [PMID: 25166848 DOI: 10.1103/physrevlett.110.127404] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2012] [Indexed: 05/19/2023]
Abstract
We investigate the order parameter dynamics of the stripe-ordered nickelate, La(1.75)Sr(0.25)NiO(4), using time-resolved resonant x-ray diffraction. In spite of distinct spin and charge energy scales, the two order parameters' amplitude dynamics are found to be linked together due to strong coupling. Additionally, the vector nature of the spin sector introduces a longer reorientation time scale which is absent in the charge sector. These findings demonstrate that the correlation linking the symmetry-broken states does not unbind during the nonequilibrium process, and the time scales are not necessarily associated with the characteristic energy scales of individual degrees of freedom.
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Affiliation(s)
- Y D Chuang
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - W S Lee
- SLAC National Accelerator Laboratory, Stanford Institute for Materials and Energy Sciences, Menlo Park, California 94025, USA
| | - Y F Kung
- SLAC National Accelerator Laboratory, Stanford Institute for Materials and Energy Sciences, Menlo Park, California 94025, USA
| | - A P Sorini
- SLAC National Accelerator Laboratory, Stanford Institute for Materials and Energy Sciences, Menlo Park, California 94025, USA and Physics Division, Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - B Moritz
- SLAC National Accelerator Laboratory, Stanford Institute for Materials and Energy Sciences, Menlo Park, California 94025, USA and Department of Physics and Astrophysics, University of North Dakota, Grand Forks, North Dakota 58202, USA and Department of Physics, Northern Illinois University, DeKalb, Illinois 60115, USA
| | - R G Moore
- SLAC National Accelerator Laboratory, Stanford Institute for Materials and Energy Sciences, Menlo Park, California 94025, USA
| | - L Patthey
- SLAC National Accelerator Laboratory, Stanford Institute for Materials and Energy Sciences, Menlo Park, California 94025, USA and Swiss Light Source, Paul Scherrer Institut, CH-5232 Villigen-PSI, Switzerland
| | - M Trigo
- SLAC National Accelerator Laboratory, Stanford Institute for Materials and Energy Sciences, Menlo Park, California 94025, USA and SLAC National Accelerator Laboratory, Stanford PULSE Institute, Menlo Park, California 94025, USA
| | - D H Lu
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - P S Kirchmann
- SLAC National Accelerator Laboratory, Stanford Institute for Materials and Energy Sciences, Menlo Park, California 94025, USA
| | - M Yi
- SLAC National Accelerator Laboratory, Stanford Institute for Materials and Energy Sciences, Menlo Park, California 94025, USA
| | - O Krupin
- European XFEL GmbH, 22607 Hamburg, Germany and Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, California 94720, USA
| | - M Langner
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Y Zhu
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - S Y Zhou
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - D A Reis
- SLAC National Accelerator Laboratory, Stanford Institute for Materials and Energy Sciences, Menlo Park, California 94025, USA and SLAC National Accelerator Laboratory, Stanford PULSE Institute, Menlo Park, California 94025, USA
| | - N Huse
- Max-Planck Department for Structural Dynamics, Center for Free Electron Laser Science, University of Hamburg, 22761 Hamburg, Germany
| | - J S Robinson
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, California 94720, USA
| | - R A Kaindl
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - R W Schoenlein
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - S L Johnson
- Swiss Light Source, Paul Scherrer Institut, CH-5232 Villigen-PSI, Switzerland
| | - M Först
- Max-Planck Department for Structural Dynamics, Center for Free Electron Laser Science, University of Hamburg, 22761 Hamburg, Germany
| | - D Doering
- Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - P Denes
- Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - W F Schlotter
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, California 94720, USA
| | - J J Turner
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, California 94720, USA
| | - T Sasagawa
- Materials and Structures Laboratory, Tokyo Institute of Technology, Kanagawa 226-8503, Japan
| | - Z Hussain
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Z X Shen
- SLAC National Accelerator Laboratory, Stanford Institute for Materials and Energy Sciences, Menlo Park, California 94025, USA
| | - T P Devereaux
- SLAC National Accelerator Laboratory, Stanford Institute for Materials and Energy Sciences, Menlo Park, California 94025, USA
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Kraemer D, Cowan ML, Paarmann A, Huse N, Nibbering ETJ, Elsaesser T, Miller RJD. Temperature dependence of the two-dimensional infrared spectrum of liquid H2O. Proc Natl Acad Sci U S A 2008; 105:437-42. [PMID: 18182497 PMCID: PMC2206554 DOI: 10.1073/pnas.0705792105] [Citation(s) in RCA: 230] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2007] [Indexed: 11/18/2022] Open
Abstract
Two-dimensional infrared photon-echo measurements of the OH stretching vibration in liquid H2O are performed at various temperatures. Spectral diffusion and resonant energy transfer occur on a time scale much shorter than the average hydrogen bond lifetime of approximately 1 ps. Room temperature measurements show a loss of frequency and, thus, structural correlations on a 50-fs time scale. Weakly hydrogen-bonded OH stretching oscillators absorbing at high frequencies undergo slower spectral diffusion than strongly bonded oscillators. In the temperature range from 340 to 274 K, the loss in memory slows down with decreasing temperature. At 274 K, frequency correlations in the OH stretch vibration persist beyond approximately 200 fs, pointing to a reduction in dephasing by librational excitations. Polarization-resolved pump-probe studies give a resonant intermolecular energy transfer time of 80 fs, which is unaffected by temperature. At low temperature, structural correlations persist longer than the energy transfer time, suggesting a delocalization of OH stretching excitations over several water molecules.
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Affiliation(s)
- D. Kraemer
- *Institute for Optical Sciences, Departments of Chemistry and Physics, University of Toronto, 80 St. George Street, Toronto, ON, Canada M5S3H6; and
| | - M. L. Cowan
- *Institute for Optical Sciences, Departments of Chemistry and Physics, University of Toronto, 80 St. George Street, Toronto, ON, Canada M5S3H6; and
| | - A. Paarmann
- *Institute for Optical Sciences, Departments of Chemistry and Physics, University of Toronto, 80 St. George Street, Toronto, ON, Canada M5S3H6; and
| | - N. Huse
- Max-Born-Institut für Nichtlineare Optik und Kurzzeitspektroskopie, Max-Born-Strasse 2A, D-12489 Berlin, Germany
| | - E. T. J. Nibbering
- Max-Born-Institut für Nichtlineare Optik und Kurzzeitspektroskopie, Max-Born-Strasse 2A, D-12489 Berlin, Germany
| | - T. Elsaesser
- Max-Born-Institut für Nichtlineare Optik und Kurzzeitspektroskopie, Max-Born-Strasse 2A, D-12489 Berlin, Germany
| | - R. J. Dwayne Miller
- *Institute for Optical Sciences, Departments of Chemistry and Physics, University of Toronto, 80 St. George Street, Toronto, ON, Canada M5S3H6; and
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Cowan ML, Bruner BD, Huse N, Dwyer JR, Chugh B, Nibbering ETJ, Elsaesser T, Miller RJD. Ultrafast memory loss and energy redistribution in the hydrogen bond network of liquid H2O. Nature 2005; 434:199-202. [PMID: 15758995 DOI: 10.1038/nature03383] [Citation(s) in RCA: 542] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2004] [Accepted: 01/21/2005] [Indexed: 11/09/2022]
Abstract
Many of the unusual properties of liquid water are attributed to its unique structure, comprised of a random and fluctuating three-dimensional network of hydrogen bonds that link the highly polar water molecules. One of the most direct probes of the dynamics of this network is the infrared spectrum of the OH stretching vibration, which reflects the distribution of hydrogen-bonded structures and the intermolecular forces controlling the structural dynamics of the liquid. Indeed, water dynamics has been studied in detail, most recently using multi-dimensional nonlinear infrared spectroscopy for acquiring structural and dynamical information on femtosecond timescales. But owing to technical difficulties, only OH stretching vibrations in D2O or OD vibrations in H2O could be monitored. Here we show that using a specially designed, ultrathin sample cell allows us to observe OH stretching vibrations in H2O. Under these fully resonant conditions, we observe hydrogen bond network dynamics more than one order of magnitude faster than seen in earlier studies that include an extremely fast sweep in the OH frequencies on a 50-fs timescale and an equally fast disappearance of the initial inhomogeneous distribution of sites. Our results highlight the efficiency of energy redistribution within the hydrogen-bonded network, and that liquid water essentially loses the memory of persistent correlations in its structure within 50 fs.
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Affiliation(s)
- M L Cowan
- Department of Chemistry, University of Toronto, 80 St George Street, Toronto, Ontario, Canada M5S3H6
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