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5篇 您的检索式:作者名="L.Bellaiche"
    题名 作者 年代 出处 被引量
1查看详情显示文摘H.Béa B.Dupé S.Fusil R.Mattana E.Jacquet B.Warot-Fonrose F.Wilhelm A.Rogalev S.Petit V.Cros A.Anane F.Petroff K.Bouzehouane G.Geneste B.Dkhil S.Lisenkov I.Ponomareva L.Bellaiche M.Bibes and A.Barthélémy 0,,21:1
2查看详情显示文摘Z.H.Chen S.Prosandeev Z.L.Luo W.Ren Y.J.Qi C.W.Huang L.You C.Gao I.A.Kornev T.Wu J.Wang P.Yang T.Sritharan L.Bellaiche and L.Chen 0,,09:1
3查看详情显示文摘B.Dupe I.C.Infante G.Geneste P.E.Janolin M.Bibes A.Barthélémy S.Lisenkov L.Bellaiche S.Ravy and B.Dkhil 0,,14:1
4Strain control of layer-resolved negative capacitance in superlattices显示文摘Negative capacitance in BaTiO_(3)/SrTiO_(3) superlattices is investigated by Monte Carlo simulations in an atomistic effective Hamiltonian model,using fluctuation formulas for responses to the local macroscopic field that incorporates depolarizing fields.We show that epitaxial strain can tune the negative capacitance of the BaTiO_(3) ferroelectric layer and the overall capacitance of the system.In addition,we predict and explain an original switching of the negative capacitance from the BaTiO3 layer to the SrTiO_(3) layer at low temperatures for intermediate strains.Raymond Walter Sergey Prosandeev Charles Paillard L.Bellaiche 2020npj Computational Materials2020,,1:0
5Displacement Current in Domain Walls of Bismuth Ferrite显示文摘In 1861,Maxwell conceived the idea of the displacement current,which then made laws of electrodynamics more complete and also resulted in the realization of devices exploiting such displacement current.Interestingly,it is presently unknown if such displacement current can result in large intrinsic ac current in ferroic systems possessing domains,despite the flurry of recent activities that have been devoted to domains and their corresponding conductivity in these compounds.Here,we report firstprinciples-based atomistic simulations that predict that the transverse(polarization-related)displacement currents of 71°and 109°domains in the prototypical BiFeO_(3) multiferroic material are significant at the walls of such domains and in the GHz regime,and,in fact,result in currents that are at least of the same order of magnitude than previously reported dc currents(that are likely extrinsic in nature and due to electrons).Such large,localized and intrinsic ac currents are found to originate from low-frequency vibrations at the domain walls,and may open the door to the design of novel devices functioning in the GHz or THz range and in which currents would be confined within the domain wall.Sergey Prosandeev Yurong Yang Charles Paillard L.Bellaiche 2018npj Computational Materials2018,,1:0
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