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Showing 145 to 154 of 154 entries
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Ferroelectric phase-transition frustration near a tricritical composition point.

Nature communications

Wei XK, Prokhorenko S, Wang BX, Liu Z, Xie YJ, Nahas Y, Jia CL, Dunin-Borkowski RE, Mayer J, Bellaiche L, Ye ZG.
PMID: 34493734
Nat Commun. 2021 Sep 07;12(1):5322. doi: 10.1038/s41467-021-25543-1.

Phase transition describes a mutational behavior of matter states at a critical transition temperature or external field. Despite the phase-transition orders are well sorted by classic thermodynamic theory, ambiguous situations interposed between the first- and second-order transitions were exposed...

Dzyaloshinskii-Moriya-like interaction in ferroelectrics and antiferroelectrics.

Nature materials

Zhao HJ, Chen P, Prosandeev S, Artyukhin S, Bellaiche L.
PMID: 33046858
Nat Mater. 2021 Mar;20(3):341-345. doi: 10.1038/s41563-020-00821-3. Epub 2020 Oct 12.

The Dzyaloshinskii-Moriya interaction (DMI) between two magnetic moments m

Ultrafast Neuromorphic Dynamics Using Hidden Phases in the Prototype of Relaxor Ferroelectrics.

Physical review letters

Prosandeev S, Grollier J, Talbayev D, Dkhil B, Bellaiche L.
PMID: 33512197
Phys Rev Lett. 2021 Jan 15;126(2):027602. doi: 10.1103/PhysRevLett.126.027602.

Materials possessing multiple states are promising to emulate synaptic and neuronic behaviors. Their operation frequency, typically in or below the GHz range, however, limits the speed of neuromorphic computing. Ultrafast THz electric field excitation has been employed to induce...

Photostriction and elasto-optic response in multiferroics and ferroelectrics from first principles.

Journal of physics. Condensed matter : an Institute of Physics journal

Yang Y, Paillard C, Xu B, Bellaiche L.
PMID: 29300181
J Phys Condens Matter. 2018 Feb 21;30(7):073001. doi: 10.1088/1361-648X/aaa51f.

The present work reviews a series of recent first-principles studies devoted to the description of the interaction of light and strain in ferroelectric and multiferroic materials. Specifically, the modelling schemes used in these works to describe the so-called photostriction...

Interface reconstruction with emerging charge ordering in hexagonal manganite.

Science advances

Cheng S, Xu C, Deng S, Han MG, Bao S, Ma J, Nan C, Duan W, Bellaiche L, Zhu Y, Zhu J.
PMID: 29795782
Sci Adv. 2018 May 18;4(5):eaar4298. doi: 10.1126/sciadv.aar4298. eCollection 2018 May.

Multiferroic materials, which simultaneously have multiple orderings, hold promise for use in the next generation of memory devices. We report a novel self-assembled MnO double layer forming at the interface between a multiferroic YMnO

Photostrictive Two-Dimensional Materials in the Monochalcogenide Family.

Physical review letters

Haleoot R, Paillard C, Kaloni TP, Mehboudi M, Xu B, Bellaiche L, Barraza-Lopez S.
PMID: 28621977
Phys Rev Lett. 2017 Jun 02;118(22):227401. doi: 10.1103/PhysRevLett.118.227401. Epub 2017 May 30.

Photostriction is predicted for group-IV monochalcogenide monolayers, two-dimensional ferroelectrics with rectangular unit cells (the lattice vector a_{1} is larger than a_{2}) and an intrinsic dipole moment parallel to a_{1}. Photostriction is found to be related to the structural change...

Discovery of stable skyrmionic state in ferroelectric nanocomposites.

Nature communications

Nahas Y, Prokhorenko S, Louis L, Gui Z, Kornev I, Bellaiche L.
PMID: 26436432
Nat Commun. 2015 Oct 05;6:8542. doi: 10.1038/ncomms9542.

Non-coplanar swirling field textures, or skyrmions, are now widely recognized as objects of both fundamental interest and technological relevance. So far, skyrmions were amply investigated in magnets, where due to the presence of chiral interactions, these topological objects were...

Topological Defects with Distinct Dipole Configurations in PbTiO_{3}/SrTiO_{3} Multilayer Films.

Physical review letters

Lu L, Nahas Y, Liu M, Du H, Jiang Z, Ren S, Wang D, Jin L, Prokhorenko S, Jia CL, Bellaiche L.
PMID: 29756809
Phys Rev Lett. 2018 Apr 27;120(17):177601. doi: 10.1103/PhysRevLett.120.177601.

Distinct and novel features of nanometric electric topological defects, including dipole waves and dipole disclinations, are presently revealed in the PbTiO_{3} layers of PbTiO_{3}/SrTiO_{3} multilayer films by means of quantitative high-resolution scanning transmission electron microscopy. These original dipole configurations...

Anisotropic epitaxial stabilization of a low-symmetry ferroelectric with enhanced electromechanical response.

Nature materials

Paull O, Xu C, Cheng X, Zhang Y, Xu B, Kelley KP, de Marco A, Vasudevan RK, Bellaiche L, Nagarajan V, Sando D.
PMID: 34556828
Nat Mater. 2021 Sep 23; doi: 10.1038/s41563-021-01098-w. Epub 2021 Sep 23.

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, where several phases coexist. Switching between these phases by electric field produces a...

Feeding disorders in children with oesophageal atresia: a cross-sectional study.

Archives of disease in childhood

Pham A, Ecochard-Dugelay E, Bonnard A, Le Roux E, Gelas T, Rousseau V, Thomassin N, Cabon-Boudard I, Nicolas A, Guinot A, Rebeuh J, Le Mandat A, Djeddi DD, Fouquet V, Boucharny A, Irtan S, Lemale J, Comte A, Bridoux-Henno L, Dupont-Lucas C, Dimitrov G, Turquet A, Borderon C, Pelatan C, Chaillou Legault E, Jung C, Willot S, Montalva L, Mitanchez D, Gottrand F, Bellaiche M.
PMID: 33863700
Arch Dis Child. 2021 Apr 16; doi: 10.1136/archdischild-2020-320609. Epub 2021 Apr 16.

INTRODUCTION: With advances in surgical and neonatal care, the survival of patients with oesophageal atresia (OA) has improved over time. Whereas a number of OA-related conditions (delayed primary anastomosis, anastomotic stricture and oesophageal dysmotility) may have an impact on...

Showing 145 to 154 of 154 entries