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Frequency dependent polarisation switching in h-ErMnO3

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.5026732· OSTI ID:1461985
 [1];  [1];  [1];  [2];  [2];  [3];  [4];  [5];  [6];  [6];  [1]
  1. Univ. of Augsburg (Germany). Experimental Physics V. Center for Electronic Correlation and Magnetism
  2. Swiss Federal Inst. of Technology in Zurich (ETH Zurich) (Switzerland). Dept. of Materials
  3. Swiss Federal Inst. of Technology in Zurich (ETH Zurich) (Switzerland). Dept. of Materials; Univ. Grenoble Alpes (France). Inst. Néel
  4. Swiss Federal Inst. of Technology in Zurich (ETH Zurich) (Switzerland). Dept. of Physics; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Materials Sciences Division
  5. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Materials Sciences Division
  6. Norwegian Univ. of Science and Technology, Trondheim (Norway). Dept. of Materials Science and Engineering
We report an electric-field poling study of the geometrically-driven improper ferroelectric h-ErMnO3. From a detailed dielectric analysis, we deduce the temperature and the frequency dependent range for which single-crystalline h-ErMnO3 exhibits purely intrinsic dielectric behaviour, i.e., free from the extrinsic so-called Maxwell-Wagner polarisations that arise, for example, from surface barrier layers. In this regime, ferroelectric hysteresis loops as a function of frequency, temperature, and applied electric fields are measured, revealing the theoretically predicted saturation polarisation on the order of 5–6 μC/cm2. Special emphasis is put on frequency dependent polarisation switching, which is explained in terms of domain-wall movement similar to proper ferroelectrics. Controlling the domain walls via electric fields brings us an important step closer to their utilization in domain-wall-based electronics.
Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
European Commission (EC); European Research Council (ERC); Federal Ministry of Education and Research (BMBF) (Germany); German Research Foundation (DFG); Swiss National Science Foundation (SNSF) (Switzerland); USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1461985
Alternate ID(s):
OSTI ID: 1435863
Journal Information:
Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 18 Vol. 112; ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

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Cited By (3)

Super-coercive electric field hysteresis in ferroelectric plastic crystal tetramethylammonium bromotrichloroferrate( iii ) journal January 2020
Ferroelectricity and magnetoelectric coupling in hexagonal Lu 0.5 In 0.5 FeO 3 ceramics journal October 2019
Ferroelectric polarization in multiferroics journal July 2019

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