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Proceedings Paper

X-ray diffraction and spectroscopy of photoinduced ferroic superstructures (Conference Presentation)
Author(s): Vladimir A. Stoica; Haidan Wen; Xiaoyi Zhang; Zhan Zhang; John W. Freeland; Lane Martin; Ramamoorthy Ramesh; Venkatraman Gopalan

Paper Abstract

Complex oxides and strongly correlated electron systems are at the forefront of science due to their exquisite potential for optical, spintronic, transducing/actuating, multiferroic, electrochemical, and superconducting property enhancements. Accordingly, at the nanoscale, engineering of complex oxide compounds is a promising route for discovery of novel quantum functionalities in a vast space of synthesis technique, calling for high-resolution control and visualization of physical properties and their structural basis. The advent of optical pulse techniques and related instrumentation advances is used to access dynamical separation of correlated orders that hide at equilibrium and also to create novel phases, not available via mainstream synthesis techniques. In this this talk, I will discuss resonant and non-resonant spectroscopic manipulation of phase transitions in nanoferroic oxides, focusing on ultrafast optical creation of artificial supercrystals in epitaxial superlattices. While table top nonlinear optical techniques are used to access the ferroic properties, synchrotron based time-resolved structural techniques, including diffraction and spectroscopy are decisive tools for revealing the nature of orderings in superstructures, their symmetries, phase quantification and spatial distribution with sub-micron resolution.

Paper Details

Date Published: 2 November 2016
PDF: 1 pages
Proc. SPIE 9956, Ultrafast Nonlinear Imaging and Spectroscopy IV, 99560W (2 November 2016); doi: 10.1117/12.2238708
Show Author Affiliations
Vladimir A. Stoica, The Pennsylvania State Univ. (United States)
Haidan Wen, Argonne National Lab. (United States)
Xiaoyi Zhang, Argonne National Lab. (United States)
Zhan Zhang, Argonne National Lab. (United States)
John W. Freeland, Argonne National Lab. (United States)
Lane Martin, Univ. of California, Berkeley (United States)
Ramamoorthy Ramesh, Univ. of California, Berkeley (United States)
Venkatraman Gopalan, The Pennsylvania State Univ. (United States)

Published in SPIE Proceedings Vol. 9956:
Ultrafast Nonlinear Imaging and Spectroscopy IV
Zhiwen Liu, Editor(s)

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