Interfacial strain effects in epitaxial multiferroic heterostructures of PbZrxTi1−xO3∕La0.7Sr0.3MnO3 grown by pulsed-laser deposition

Vrejoiu, Ionela; Ziese, M.; Setzer, A.; Esquinazi, P.; Birajdar, Balaji; Lotnyk, Andriy; Alexe, Marin; Hesse, D.

doi:10.1063/1.2908037

Cited by 41 publications

(24 citation statements)

References 21 publications

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“…Figure 5͑a͒ shows the magnetization hysteresis loops of sample VM17 at various temperatures. At 5 and 100 K stepped hysteresis curves are clearly seen, 11 i.e., at these temperatures the magnetization measurements clearly show two coercive fields. Since there are three layers present in each graded heterostructure, one would expect to observe three magnetization reversal steps.…”

Section: Strain Dependence Of the Coercive Fieldmentioning

confidence: 85%

“…Since the saturation values of both magnetization and electric polarization are comparatively small in most intrinsic multiferroics, 2,6 considerable research activity has focused on extrinsic multiferroics, i.e., superlattice systems consisting of alternating ferromagnetic and ferroelectric layers. [7][8][9][10][11] Moreover, in laminates based on Terfenol-D ͑Tb 1−x Dy x Fe 2−y ͒ and PbZr x Ti 1−x O 3 very high values of the magnetoelectric coupling constant were found. 12,13 This is in the line of general interest in PbZr x Ti 1−x O 3 heterostructures since this material has excellent ferroelectric and piezoelectric properties making it of potential use for nonvolatile random access memories.…”

Section: Introductionmentioning

confidence: 97%

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Structural, magnetic, and electric properties of La0.7Sr0.3MnO3/PbZrxTi1−xO3 heterostructures

Ziese

Setzer

Vrejoiu

et al. 2008

Journal of Applied Physics

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Epitaxial La0.7Sr0.3MnO3/PbZrxTi1−xO3 multilayers were fabricated by pulsed-laser deposition and studied by structural, magnetic, and electric characterization techniques. Transmission electron microscopy and x-ray diffractometry proved the excellent structural quality of the samples. A high ferroelectric polarization and stable piezoelectric switching were found for the lead zirconate titanate layers, whereas the manganite layers showed bulklike resistivity and magnetoresistance, both attesting to the high quality of the layers. In a detailed study of the magnetic response of the multilayers multiple magnetization switching was observed that was related to the complex strain state.

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Section: Strain Dependence Of the Coercive Fieldmentioning

confidence: 85%

Section: Introductionmentioning

confidence: 97%

Structural, magnetic, and electric properties of La0.7Sr0.3MnO3/PbZrxTi1−xO3 heterostructures

Ziese

Setzer

Vrejoiu

et al. 2008

Journal of Applied Physics

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“…We note, however, that the negative bias of the local PFM loop in Fig. 2g indicates an influence on the PZT-switching behaviour exerted by the electrostatic environment or by interfacial strain 14,15 . This crosstalk suggests that the induced change of the integral symmetry may also be used to control the properties of the interlayer itself, for example, by activating spin-orbit coupling phenomena such as spin-band splitting (Rashba effect [16][17][18] ) or spin canting (Dzyaloshinskii-Moriya interaction 19 .).…”

Section: Resultsmentioning

confidence: 94%

Functional ferroic heterostructures with tunable integral symmetry

et al. 2014

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The relation between symmetry and functionality was pinpointed by Pierre Curie who stated that it is the symmetry breaking that creates physical properties. This fundamental principle is nowadays used for engineering heterostructures whose integral symmetry leads to exotic phenomena such as one-way transparency. For switching devices, however, such symmetry-related functionalities cannot be used because the symmetry in conventional heterostructures is immutable once the material has been synthesized. Here we demonstrate a concept for post-growth symmetry control in PbZr 0.2 Ti 0.8 O 3 and BiFeO 3 -based heterostructures. A conducting oxide is sandwiched between two ferroelectric layers, and inversion symmetry is reversibly switched on or off by layer-selective electric-field poling. The generalization of our approach to other materials and symmetries is discussed. We thus establish ferroic trilayer structures as device components with reversibly tunable symmetry and demonstrate their use as light emitters that can be activated and deactivated by applying moderate electric voltages.

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“…Furthermore, the properties of LSMO can be tuned in a controlled fashion via epitaxial 4 or interfacial strain. 5 While significant attention has been given to the physical aspect of LSMO-ferroelectric interfaces, there is very little detail on the local chemistry at such interfaces. Interfacial phenomena such as chemical inhomogeneity, defects (dislocations and vacancies, etc.)…”

Section: Introductionmentioning

confidence: 99%

Chemistry of Ruddlesden–Popper planar faults at a ferroelectric–ferromagnet perovskite interface

Arredondo

Weyland

Hambe

et al. 2011

Journal of Applied Physics

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We investigate the interfacial structure of PbZr 0.20 Ti 0.80 O 3 (PZT)/La 0.67 Sr 0.33 MnO 3 (LSMO)/ SrTiO 3 heterostructures by combining low-magnification transmission electron microscopy imaging and spectroscopy techniques with high-resolution spherical-aberration corrected scanning transmission electron microscopy imaging, geometrical phase analysis, and spectroscopy results. For certain thickness regimes, the interface between PZT and LSMO is found to have a significant density of planar defects at the interface. Both A-site cation (Pb) diffusivity and highly inhomogeneous local strains are observed at the boundaries of the defect areas. It is proposed that Pb is incorporated as PbO Ruddlesden-Popper planar fault within the LSMO. These results underline the importance of chemical fluctuations caused by long-range strain fields associated with defect cores.

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Interfacial strain effects in epitaxial multiferroic heterostructures of PbZrxTi1−xO3∕La0.7Sr0.3MnO3 grown by pulsed-laser deposition

Cited by 41 publications

References 21 publications

Structural, magnetic, and electric properties of La0.7Sr0.3MnO3/PbZrxTi1−xO3 heterostructures

Structural, magnetic, and electric properties of La0.7Sr0.3MnO3/PbZrxTi1−xO3 heterostructures

Functional ferroic heterostructures with tunable integral symmetry

Chemistry of Ruddlesden–Popper planar faults at a ferroelectric–ferromagnet perovskite interface

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