• Corpus ID: 245650676

Nonvolatile Electric-Field Control of Inversion Symmetry

  title={Nonvolatile Electric-Field Control of Inversion Symmetry},
  author={Lucas Caretta and Yu Tsun Shao and Jia-feng Yu and Antonio B. Mei and Bastien F Grosso and Cheng Dai and Piush Behera and Daehun Lee and Margaret R. McCarter and Eric Parsonnet and Harikrishnan K.P. and Fei Xue and Edward S. Barnard and Steffen Ganschow and Archana Raja and Lane W. Martin and Long-qing Chen and Manfred Fiebig and Keji Lai and Nicola A. Spaldin and David A. Muller and Darrell G. Schlom and Ramamoorthy Ramesh Department of Materials Science and Engineering and University of California Berkeley and School of Applied and Engineering Physics and C.W.Fehrenbach Colorado State University and Department of Physics and University of Texas Austin and Department of Materials Science and Department of Materials and Eth Zurich Department of Materials Science and The Pennsylvania State University and Molecular Foundry and Lawrence Berkeley National Laboratory and Leibniz-Institut fur Kristallzuchtung and Materials Sciences Division and Kavli Institute at Cornell for Nanoscale Science},
In condensed-matter systems, competition between ground states at phase boundaries can lead to significant changes in material properties under external stimuli, particularly when these ground states have different crystal symmetries. A key scientific and technological challenge is to stabilize and control coexistence of symmetry-distinct phases with external stimuli. Using BiFeO3 (BFO) layers confined between layers of the dielectric TbScO3 as a model system, we stabilize the mixed-phase… 

Figures from this paper

Liberating a hidden antiferroelectric phase with interfacial electrostatic engineering

Antiferroelectric materials have seen a resurgence of interest because of proposed applications in a number of energy-efficient technologies. Unfortunately, relatively few families of



Metastable ferroelectricity in optically strained SrTiO3

It is shown that optical excitation of lattice vibrations can induce polar order, and hardening of a low-frequency vibration points to a photoinduced ferroelectric phase transition, with a spatial domain distribution suggestive of a photoflexoelectric coupling.

First-principles study of spontaneous polarization in multiferroic BiFeO 3

The ground-state structural and electronic properties of ferroelectric BiFeO 3 are calculated using density functional theory within the local spin-density approximation sLSDAd and the LSDA+U method.

Terahertz field–induced ferroelectricity in quantum paraelectric SrTiO3

These results demonstrate collective coherent control over material structure, in which a single-cycle field drives ions along the microscopic pathway leading directly to their locations in a new crystalline phase on an ultrafast time scale.

Atomically engineered ferroic layers yield a room-temperature magnetoelectric multiferroic

The results demonstrate a design methodology for creating higher-temperature magnetoelectric multiferroics by exploiting a combination of geometric frustration, lattice distortions and epitaxial engineering.

Electric-field control of magnetic order above room temperature.

Ferroelectricity in BaTiO3 crystals is used to tune the sharp metamagnetic transition temperature of epitaxially grown FeRh films and electrically drive a transition between antiferromagnetic and ferromagnetic order with only a few volts, just above room temperature, correspond to a magnetoelectric coupling larger than previous reports by at least one order of magnitude.

Inversion-Symmetry Engineering in Layered Oxide Thin Films.

Symmetry engineering on the sub-unit-cell level in ultrathin hexagonal manganite films suggests a new platform for controlled activation and deactivation of symmetry-governed functionalities in oxide-electronic epitaxial thin films.

Emergent Antipolar Phase in BiFeO3-La0.7Sr0.3MnO3 Superlattice.

This work improves the understanding of a metastable state manipulated by thermodynamic constraints by lattice strain and magnetic coupling by introducing magnetic coupling at BiFeO3-La0.7Sr0.3MnO3 interfaces epitaxially grown on SrTiO3 substrate.

Anisotropic conductance at improper ferroelectric domain walls.

It is shown that the electrical conductance at the interfacial ferroelectric domain walls in hexagonal ErMnO(3) is a continuous function of the domain wall orientation, with a range of an order of magnitude.

Functional ferroic heterostructures with tunable integral symmetry.

Ferroic trilayer structures are established 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.

Percolative phase separation underlies colossal magnetoresistance in mixed-valent manganites

Colossal magnetoresistance—an unusually large change of resistivity observed in certain materials following application of magnetic field—has been extensively researched in ferromagnetic perovskite