Results 81 to 90 of about 204,595 (365)

Ferroelectricity and Self-Polarization in Ultrathin Relaxor Ferroelectric Films [PDF]

Scientific Reports, 2016
AbstractWe report ferroelectricity and self-polarization in the (001) oriented ultrathin relaxor ferroelectric PMN-PT films grown on Nb-SrTiO3, SrRuO3 and La0.7Sr0.3MnO3, respectively. Resistance-voltage measurements and AC impedance analysis suggest that at high temperatures Schottky depletion width in a 4 nm thick PMN-PT film deposited on Nb-SrTiO3 ...
Diyang Zhao, Huiyun Zhang, Meihong Zhu, Peixian Miao, Nengneng Luo, Yonggang Zhao, Aitian Chen, Qiang Li, Zhong Sun, Meiqi Guo   +9 more
openaire   +2 more sources

Optical Control of the Thermal Conductivity in BaTiO3

Advanced Functional Materials, EarlyView.
Light‐driven manipulation of thermal conductivity in archetypal ferroelectric, BaTiO3, offers a novel and effective approach for the dynamical control of the heat flux, with potential applications in thermal management and phonon‐based logic. Abstract Achieving dynamic control over thermal conductivity remains a formidable challenge in condensed matter
Claudio Cazorla, Carlos Escorihuela‐Sayalero, Jesús Carrete, Jorge Íñiguez‐González, Riccardo Rurali   +4 more
wiley   +1 more source

Investigation on structural, dielectric and ferroelectric properties of samarium-substituted BiFeO3–PbTiO3 composites [PDF]

Journal of Advanced Dielectrics, 2017
The polycrystalline samples of 0.8BiSmxFe1−xO3–0.2PbTiO3 (x=0.05,0.10,0.15 and 0.20) were prepared by using the conventional solid-state reaction technique and sintered at high temperature (850∘C).
Truptimayee Sahu, Banarji Behera
doaj   +1 more source

Low magnetic field reversal of electric polarization in a Y-type hexaferrite

, 2011
Magnetoelectric multiferroics in which ferroelectricity and magnetism coexist have attracted extensive attention because they provide great opportunities for the mutual control of electric polarization by magnetic fields and magnetization by electric ...
Liu, Yi, Sun, Young, Wang, Fen, Yan, Li-Qin, Zou, Tao   +4 more
core   +1 more source

Terahertz‐Driven Ultrafast Dynamics of Rare‐Earth Nickelates by Controlling Only the Charge Degree of Freedom

Advanced Functional Materials, EarlyView.
The THz drive of the Mott insulating state of a rare‐earth nickelate induces instantaneous insulator‐metal transition via quantum tunneling of valence electrons across the bandgap. This transition is pure electronic and highly non‐thermal, which may find its applications in ultrafast opto‐electronics with enhanced performance and minimal device size ...
Gulloo Lal Prajapati, Sergey Kovalev, Igor Ilyakov, Atiqa Arshad, Gaurav Dubey, Ketan S. Navale, Dhanvir Singh Rana, Jan‐Christoph Deinert   +7 more
wiley   +1 more source

Advances in ab-initio theory of Multiferroics. Materials and mechanisms: modelling and understanding

, 2012
Within the broad class of multiferroics (compounds showing a coexistence of magnetism and ferroelectricity), we focus on the subclass of "improper electronic ferroelectrics", i.e.
A. Girlando, A. Malashevic, A. Rohrbach, A. Savin, A. Seidl, A. Stroppa, A. Stroppa, A. Stroppa, A. Stroppa, A. Stroppa, A.D. Becke, A.K. Cheetham, A.K. Kirov, A.P. Kuzmenko, A.P. Levanyuk, A.V. Kimel, B. Lorenz, B.J. Campbell, C. Adamo, C. Capillas, C. Capillas, C. Capillas, C. Ederer, C. Ederer, C. Loschen, C.N.R. Rao, D. Baldomir, D. Khomskii, D. Orobengoa, D. Vanderbilt, D.I. Khomskii, D.V. Efremov, E. Bousquet, E. Bousquet, E. Kroumova, E. Kroumova, E. Kroumova, E. Kroumova, E.J.W. Verwey, E.M. Wheeler, F. Hong, F. Kagawa, F. Kagawa, F. Kubel, F. Nad, G. Férey, G. Férey, G. Giovannetti, G. Giovannetti, G. Giovannetti, G. Giovannetti, G. Giovannetti, G. King, G. King, G. King, G. King, G. King, G. Kresse, G. Kresse, G. Kresse, G. Lawes, G. Rogez, G.P. Vorobev, H. Katsura, H. Okamoto, H. Schmidt, H. Tsunetsugu, H. Wu, H.F. Clausen, I.A. Sergienko, I.A. Sergienko, I.B. Bersuker, I.J. Dzialoshinski, I.V. Solovyev, J. Adhish, J. Brink van den, J. Hemberger, J. Heyd, J. Heyd, J. Hong, J. Kanamori, J. Lopez-Prez, J. Paier, J. Valasek, J. Wang, J.A. Alonso, J.B. Goodenough, J.B. Torrance, J.B. Torrance, J.F. Scott, J.H. Lee, J.L. Garcia-Munoz, J.M. Perez-Mato, J.M. Perez-Mato, J.M. Perez-Mato, J.M. Rondinelli, J.M. Rondinelli, J.M. Rondinelli, J.M. Rondinelli, J.P. Perdew, K. Yamauchi, K. Yamauchi, K. Yamauchi, K. Yamauchi, K.-L. Hu, K.-L. Hu, K.I. Kugel, L. Holmes, L. Neel, L. Noodleman, L. Noodleman, L. Noodleman, L. Noodleman, L.C. Chapon, M. Alexe, M. Belakhovsky, M. Cointe Le, M. Dressel, M. Filatov, M. Marsman, M. Matsubara, M. Mostovoy, M. Reehuis, M.A. black, M.I. Aroyo, M.I. Aroyo, M.J. Rosseinsky, M.T. Fernandez-Diaz, M.W. Licurse, N. Keller, N.A. Benedek, N.A. Benedek, N.A. Hill, N.A. Spaldin, N.B. Perkins, N.J. Mosey, O. Tchernyshyov, O.M. Yaghi, P. Barone, P. García, P. Ghosez, P. Hohenberg, P. Jain, P.E. Blochl, P.J. Hay, P.J. Stephens, P.W. Anderson, P.W. Anderson, P.W. Anderson, R. Ramesh, R. Ramesh, R. Resta, R. Valdes-Aguilar, R. Wojciechowski, R.D. King-Smith, R.E. Cohen, R.L. Withers, S. Blanco-Canosa, S. Garcia-Martin, S. Garcia-Martin, S. Horiuchi, S. Horiuchi, S. Horiuchi, S. Horiuchi, S. Ishibashi, S. Ishiwata, S. Ivantchev, S. Ivantchev, S. Kummel, S. Picozzi, S. Picozzi, S. Picozzi, S. Valencia, S. Weber, S.C. Parida, S.J. Luo, S.L. Gnatchenko, S.W. Cheong, T. Fukushima, T. Fukushima, T. Fukushima, T. Hoffmann, T. Kimura, T. Kurumaji, T. Moriya, T. Smith, T. Zhao, T.-Y. Khim, V. Pardo, V.I. Anisimov, V.I. Anisimov, V.Y. Pomjakushin, W. Dachraoui, W. Kohn, X.-Y. Wang, Y. Du, Y. Miyamoto, Y. Nakatsuka, Y. Okimoto, Y. Takano, Y. Tokunaga, Y. Tokunaga, Y. Tokura, Y. Yamasaki, Z.G. Soos   +204 more
core   +1 more source

Theory of electronic ferroelectricity [PDF]

Physical Review B, 1996
We present a theory of the linear and nonlinear optical characteristics of the insulating phase of the Falicov-Kimball model within the self-consistent mean-field approximation. The Coulomb attraction between the itinerant d-electrons and the localized f-holes gives rise to a built-in coherence between the d and f-states, which breaks the inversion ...
T. Portengen, L. J. Sham, Th. Östreich
openaire   +4 more sources

Ab Initio Study on 3D Anisotropic Ferroelectric Switching Mechanism and Coercive Field in HfO2 and ZrO2

Advanced Functional Materials, EarlyView.
This study uncovers a new switching mechanism in HfO2 and ZrO2, where the absence of a non‐polar layer along the a‐direction induces interaction between polar layers. Consequently, the switching barriers for growth are lower than those for nucleation in this direction, leading to a size‐dependent coercive field that matches experimental observations ...
Kun Hee Ye, Taeyoung Jeong, Seungjae Yoon, Dohyun Kim, Yunjae Kim, Cheol Seong Hwang, Jung‐Hae Choi   +6 more
wiley   +1 more source

Plasmonic Ferroelectric Modulators [PDF]

Journal of Lightwave Technology, 2019
Integrated ferroelectric plasmonic modulators featuring large bandwidths, broad optical operation range, resilience to high temperature and ultracompact footprint are introduced. Measurements show a modulation bandwidth of 70 GHz and a temperature stability up to 250 C.
Andreas Messner, Felix Eltes, Ping Ma, Stefan Abel, Benedikt Baeuerle, Arne Josten, Wolfgang Heni, Daniele Caimi, Jean Fompeyrine, Juerg Leuthold   +9 more
openaire   +3 more sources

A Novel Approach to Implementing Artificial Thalamic Neurons with Ferroelectric Transistors

Advanced Functional Materials, EarlyView.
Artificial neurons created using CMOS technology often require a large number of transistors and capacitors. This study introduces an artificial thalamic neuron that employs only five CMOS compatible ferroelectric transistors. The manufactured thalamic neuron demonstrates leaky integrate‐and‐fire‐or‐burst (LIFB) functionalities, featuring self ...
Andreas Grenmyr, Jiayuan Zhang, Jingxuan Sun, Kenta Moto, Stefan Wiefels, Seong‐Ryong Koh, Detlev Grützmacher, Qing‐Tai Zhao   +7 more
wiley   +1 more source