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Measurement of Spin Dynamics in a Layered Nickelate Using X-Ray Photon Correlation Spectroscopy: Evidence for Intrinsic Destabilization of Incommensurate Stripes at Low Temperatures

Alessandro Ricci, Nicola Poccia, Gaetano Campi, Shrawan Mishra, Leonard Müller, Boby Joseph, Bo Shi, Alexey Zozulya, Marcel Buchholz, Christoph Trabant, James C. T. Lee, Jens Viefhaus, Jeroen B. Goedkoop, Agustinus Agung Nugroho, Markus Braden, Sujoy Roy, Michael Sprung, and Christian Schüßler-Langeheine
Phys. Rev. Lett. 127, 057001 – Published 27 July 2021
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Abstract

We study the temporal stability of stripe-type spin order in a layered nickelate with x-ray photon correlation spectroscopy and observe fluctuations on timescales of tens of minutes over a wide temperature range. These fluctuations show an anomalous temperature dependence: they slow down at intermediate temperatures and speed up on both heating and cooling. This behavior appears to be directly connected with spatial correlations: stripes fluctuate slowly when stripe correlation lengths are large and become faster when spatial correlations decrease. A low-temperature decay of nickelate stripe correlations, reminiscent of what occurs in cuprates as a result of a competition between stripes and superconductivity, hence occurs via loss of both spatial and temporal correlations.

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  • Received 6 August 2020
  • Accepted 10 May 2021

DOI:https://doi.org/10.1103/PhysRevLett.127.057001

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.

Published by the American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

Alessandro Ricci1, Nicola Poccia2, Gaetano Campi3, Shrawan Mishra4,5, Leonard Müller1, Boby Joseph6, Bo Shi7, Alexey Zozulya1,*, Marcel Buchholz8, Christoph Trabant8,9, James C. T. Lee4,10,13, Jens Viefhaus1,9, Jeroen B. Goedkoop11, Agustinus Agung Nugroho12, Markus Braden8, Sujoy Roy4, Michael Sprung1, and Christian Schüßler-Langeheine9,†

  • 1Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
  • 2Institute for Metallic Materials, Leibniz Institute for Solid State and Materials Research IFW Dresden, 01069 Dresden, Germany
  • 3Institute of Crystallography, CNR, Via Salaria km. 29,3 - 00015 Monterotondo, Roma, Italy
  • 4Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
  • 5School of Materials Science and Technology, Indian Institute of Technology, Banaras Hindu University, Varanasi 221005, India
  • 6Elettra Sincrotrone Trieste, Strada Statale 14 - km 163,5, AREA Science Park, I-34149 Basovizza, Trieste, Italy
  • 7Van der Waals-Zeeman Institute, University of Amsterdam, 1098 XH Amsterdam, Netherlands
  • 8II. Physikalisches Institut, Universität zu Köln, Zülpicher Straße 77, 50937 Köln, Germany
  • 9Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Straße 15, 12489 Berlin, Germany
  • 10Department of Physics and Astronomy, Sonoma State University, 1801 East Cotati Avenue, Rohnert Park, California 94928-3609, USA
  • 11Van der Waals-Zeeman Institute, University of Amsterdam, 1098 XH Amsterdam, Netherlands
  • 12Faculty of Mathematics and Natural Sciences Institut Teknologi Bandung, Jalan Ganesha 10 Bandung, 40132, Indonesia
  • 13Department of Physics, Concordia College, 901 8th Street South, Moorhead, Minnesota 56562 USA

  • *Present address: European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany.
  • christian.schuessler@helmholtz-berlin.de

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Issue

Vol. 127, Iss. 5 — 30 July 2021

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