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Related papers: Microstructure of epitaxial strained BiCrO3 thin f…

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Piezoelectrics interconvert mechanical energy and electric charge and are widely used in actuators and sensors. The best performing materials are ferroelectrics at a morphotropic phase boundary (MPB), where several phases can intimately…

Transition metal oxide thin films show versatile electrical, magnetic, and thermal properties which can be tailored by deliberately introducing macroscopic grain boundaries via polycrystalline solids. In this study, we focus on the…

Finite size effects in ferroelectric thin films have been probed in a series of epitaxial perovskite c-axis oriented PbTiO3 films grown on thin La0.67Sr0.33MnO3 epitaxial electrodes. The film thickness ranges from 480 down to 28 A (7 unit…

Controlling grain orientations within polycrystalline all-inorganic halide perovskite solar cells can help increase conversion efficiencies toward their thermodynamic limits, however the forces governing texture formation are ambiguous.…

Ferroelectric films usually have phase states and physical properties very different from those of bulk ferroelectrics. Here we propose free-standing ferroelectric-elastic multilayers as a bridge between these two material systems. Using a…

Materials Science · Physics 2011-10-18 S. Prokhorenko , N. A. Pertsev

Strain engineering of perovskite oxide thin films has proven to be an extremely powerful method for enhancing and inducing ferroelectric behavior. In ferroelectric thin films and superlattices, the polarization is intricately linked to…

We used first-principles methods to perform a systematic search for potentially-stable phases of multiferroic BiFeO3. We considered a simulation cell compatible with the atomic distortions that are most common among perovskite oxides, and…

Materials Science · Physics 2013-05-29 Oswaldo Diéguez , O. E. González-Vázquez , Jacek C. Wojdeł , Jorge Íñiguez

We report comprehensive x-ray diffraction studies of the crystal structure and epitaxy of thin films of the topological insulator Bi2Te3 grown on Si (1 1 1). The films are single crystals of high crystalline quality, which strongly depends…

Materials Science · Physics 2012-12-04 Jihwey Park , Yeong-Ah Soh , G. Aeppli , S. R. Bland , Xie-Gang Zhu , Xi Chen , Qi-Kun Xue , Francois Grey

The subtle balance of electronic correlations, crystal field splitting and spin--orbit coupling in layered Ir$^{4+}$ oxides can give rise to novel electronic and magnetic phases. Experimental progress in this field relies on the synthesis…

Materials Science · Physics 2018-08-20 A. Gutiérrez-Llorente , L. Iglesias , B. Rodríguez-González , F. Rivadulla

The ground-state polarization of PbTiO3 thin films is studied using a microscopic effective Hamiltonian with parameters obtained from first-principles calculations. Under short-circuit electrical boundary conditions, (001) films with…

Materials Science · Physics 2009-10-31 Ph. Ghosez , K. M. Rabe

Thin Ba0.5Sr0.5TiO3 (BST) films on p-type Si (100) using The Chemical Solution Deposition (CSD) method. X-ray diffraction (XRD), Scanning electron microscopy (SEM), C-V meter analysis measurement were employed to characterise the films. The…

Condensed Matter · Physics 2007-05-23 Irzaman , H. Darmasetiawan , M. Nur Indro S. G. Sukaryo , M Hikam , Na Peng Bo , M. Barmawi

Bulk BiMnO$_3$ is the only transition-metal perovskite oxide that is insulating and shows strong ferromagnetism. This distinctive behavior would make it a promising candidate as a magnetoelectric multiferroic if it was also a polar…

Materials Science · Physics 2015-03-31 Oswaldo Diéguez , Jorge Íñiguez

Perovskite ferroelectric oxides are usually considered to be brittle materials, however, recent work [Dong et al., Science 366, 475 (2019)] demonstrated the super-elasticity in the freestanding BaTiO3 thin films. This property may originate…

Materials Science · Physics 2020-04-15 Changqing Guo , Guohua Dong , Ziyao Zhou , Ming Liu , Houbing Huang , Jiawang Hong , Xueyun Wang

We have investigated the structural and magnetic properties of BiFeO$_3$ (BFO) thin films grown over (100)-oriented Si substrates by rf magnetron sputtering in a new route under O$_2$ free low pressure Ar atmosphere. Single-phase BFO films…

Materials Science · Physics 2018-04-03 G. A. Gomez-Iriarte , C. Labre , L. A. S. de Oliveira , J. P. Sinnecker

TbMnO$_{3}$ films have been grown under compressive strain on (001)-oriented SrTiO$_{3}$ crystals. They have an orthorhombic structure and display the (001) orientation. With increasing thickness, the structure evolves from a more symmetric…

The structural, magnetic and dielectric properties have been investigated in 3$d$-5$d$ based double perovskite Sr$_2$FeIrO$_6$ thin films deposited by pulse laser deposition technique. To understand the effect of strain, epitaxial films are…

Strongly Correlated Electrons · Physics 2020-12-02 K. C. Kharkwal , Roshan Kumar Patel , K. Asokan , A. K. Pramanik

The sensitivity of materials properties, particularly those of perovskite oxides, to epitaxial strain has been exploited to great advantage to create materials with new or enhanced properties. Although it has certainly been recognized that…

Materials Science · Physics 2020-09-09 Ethan T. Ritz , Nicole A. Benedek

The impact of epitaxial strain on the structural, electronic, and thermoelectric properties of p-type transparent Sr-doped LaCrO3 thin films has been investigated. For this purpose, high-quality fully strained La0.75Sr0.25CrO3 (LSCO)…

Thin films and heterostructures of hexagonal manganites as promising multiferroic materials have attracted a considerable interest recently. We report structural transformations of high quality epitaxial h-TMO/YSZ(111) films, analyzed by…

Strongly Correlated Electrons · Physics 2020-09-23 R. Mandal , M. Hirsbrunner , V. Roddatis , L. Schüler , U. Roß , S. Merten , V. Moshnyaga

We measure the remnant polarization of ferroelectric domains in BiFeO3 films down to 3.6 nm using low energy electron and photoelectron emission microscopy. The measured polarization decays strongly below a critical thickness of 5-7 nm…

Materials Science · Physics 2013-01-04 J. E. Rault , W. Ren , S. Prosandeev , S. Lisenkov , D. Sando , S. Fusil , M. Bibes , A. Barthelemy , L. Bellaiche , N. Barrett
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