Zobrazeno 1 - 10
of 797
pro vyhledávání: '"L. Bellaiche"'
Publikováno v:
npj Computational Materials, Vol 10, Iss 1, Pp 1-7 (2024)
Abstract Controlling the direction of ferromagnetism and antiferromagnetism by an electric field in single-phase multiferroics will open the door to the next generation of devices for spintronics and electronics. The typical magnetoelectric coupling
Externí odkaz:
https://doaj.org/article/e30dcb21407145eeafe4159a59e84f3c
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-10 (2024)
Abstract Electric bubbles are sub-10nm spherical vortices of electric dipoles that can spontaneously form in ultra-thin ferroelectrics. While the static properties of electric bubbles are well established, little to nothing is known about the dynamic
Externí odkaz:
https://doaj.org/article/7c279fce9ba0493bba0e9764d87bc76e
Publikováno v:
npj Computational Materials, Vol 6, Iss 1, Pp 1-4 (2020)
Abstract Negative capacitance in BaTiO3/SrTiO3 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 depolarizin
Externí odkaz:
https://doaj.org/article/d64272a8bccf45329f5f0d32a7dde6d2
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-8 (2020)
Understanding the processes underlying the self-assembly of polar textures is pivotal for the development of future technologies. Here, the authors reveal the dynamics of nonequilibrium phase transitions in low-dimensional ferroelectrics and emphasiz
Externí odkaz:
https://doaj.org/article/57d5f929acd142a7a2c4a30d617f5dc7
Autor:
Yousra Nahas, Alireza Akbarzadeh, Sergei Prokhorenko, Sergey Prosandeev, Raymond Walter, Igor Kornev, Jorge Íñiguez, L. Bellaiche
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-9 (2017)
(Ba,Ca)(Zr,Ti)O3ceramics have attracted interest as lead-free materials with large piezoelectric responses. Here, the authors use an atomistic model to show the electromechanical properties are due to a complex microstructure and polarization fluctua
Externí odkaz:
https://doaj.org/article/f51c8ccde54f42e5bb7352430e18f551
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-8 (2017)
Antiferroelectric capacitors hold great promise for high-power energy storage. Here, through a first-principles-based computational approach, authors find high theoretical energy densities in rare earth substituted bismuth ferrite, and propose a simp
Externí odkaz:
https://doaj.org/article/a0630b610f7047be8e27681e3ea41f29
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-11 (2017)
Magnetically-driven ferroelectricity holds the key for novel multiferroic effects in perovskite oxides, but it remains poorly understood. Here, Zhaoet al. determine the dominant magnetostructural couplings that yield improper ferroelectricity in a ge
Externí odkaz:
https://doaj.org/article/1dc6a90e1b64449fafea625f7194c7ca
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-7 (2016)
Relaxor ferroelectrics possess potential microwave frequency applications due to characteristic dielectric relaxation properties however the underlying mechanism is debated. Here, the authors use first-principles-based molecular dynamic simulations t
Externí odkaz:
https://doaj.org/article/78a7defdf705419b9fb677d9409c420a
Autor:
D. Sando, Yurong Yang, E. Bousquet, C. Carrétéro, V. Garcia, S. Fusil, D. Dolfi, A. Barthélémy, Ph. Ghosez, L. Bellaiche, M. Bibes
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-7 (2016)
Modern technology such as electronics and photovoltaics requires careful control of optical responses of electronic properties. Here, Sando et al. demonstrate a large variation of optical index and light absorption in multiferroic material BiFeO3thin
Externí odkaz:
https://doaj.org/article/08931a690cf9438abe477d55e8667b58
Autor:
Xiaojiang Li, Peisong Peng, Hichem Dammak, Grégory Geneste, Alireza Akbarzadeh, Sergey Prosandeev, L. Bellaiche, Diyar Talbayev
Publikováno v:
Physical Review B
Physical Review B, 2023, 107 (6), pp.064306. ⟨10.1103/PhysRevB.107.064306⟩
Physical Review B, 2023, 107 (6), pp.064306. ⟨10.1103/PhysRevB.107.064306⟩
International audience; We present a joint experimental and computational study of second harmonic generation and Kerr effect induced by intense terahertz electric fields in the quantum paraelectric material KTaO 3. The single-cycle THz electric puls
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2fcfa9b2cfb62f05e1c3b8e7c2b2170a
https://centralesupelec.hal.science/hal-04000306
https://centralesupelec.hal.science/hal-04000306