Results 81 to 90 of about 2,694,822 (232)

Phonon Driven Ferroelectricity and Raman Active Modes in Hybrid Organic‐Inorganic Perovskites

Advanced Materials, EarlyView.
Ferroelectric domains, a hallmark of ferroelectricity, are studied using temperature‐dependent Raman spectroscopy to uncover characteristic phonons associated with ferroelectric phase transitions in different n‐value HOIPs. Higher n‐value HOIP demonstrate a reduced ferroelectric switching energy barrier, providing valuable insights for optimizing ...
Chuanzhao Li, Shurong Yuan, Yixin Li, Zhenyue Wu, Yuanyuan Jin, Kian Ping Loh, Kai Leng   +6 more
wiley   +1 more source

Light-induced size changes in BiFeO3 crystals. [PDF]

Nature Materials, 2010
Multifunctional oxides are promising materials because of their fundamental physical properties as well as their potential in applications. Among these materials, multiferroics exhibiting ferroelectricity and magnetism are good candidates for spin ...
B. Kundys, M. Viret, D. Colson, D. Kundys   +3 more
semanticscholar   +1 more source

Manipulating metastability: Quenched control of topological defects in multiferroics

AIP Advances
The topological properties of quasiparticles, such as skyrmions and vortices, have the potential to offer extraordinary metastability through topological protection, and drive motion with minimal electrical current excitation.
Nimish P. Nazirkar, Sowmya Srinivasan, Ross Harder, Edwin Fohtung   +3 more
doaj   +1 more source

Kittel’s model for ferromagnetic domains, revised and completed, including the derivation of the magnetic hysteresis

Results in Physics, 2023
In 1946 and 1949, Charles Kittel proposed a simple model for the size of ferromagnetic domains that is still widely used nowadays [C. Kittel, Phys. Rev. 70 (1946) 965–971 and Rev. Mod. Phys.
Cristian M. Teodorescu
doaj  

Proton-transfer Ferroelectricity / Multiferroicity in Rutile Oxyhydroxides [PDF]

, 2018
Oxyhydroxide minerals like FeOOH have been a research focus in geology for studying the Earth interior, and also in chemistry for studying oxygen electrocatalysis activity. In this paper we provide first-principles evidence of a new class of ferroelectrics or multiferroics among them:GaOOH,InOOH,CrOOH,FeOOH, which are earth-abundant minerals and have ...
arxiv   +1 more source

Ferroelectric Ferrimagnetic LiFe$_2$F$_6$: Charge Ordering Mediated Magnetoelectricity

, 2017
Trirutile-type LiFe$_2$F$_6$ is a charge-ordered material with Fe$^{2+}$/Fe$^{3+}$ configuration. Here its physical properties, including magnetism, electronic structure, phase transition, and charge ordering, are studied theoretically.
Dong, Shuai, Liang, Yan-Ping, Lin, Ling-Fang, Xu, Qiao-Ru, Zhang, Jun-Jie, Zhang, Yang   +5 more
core   +1 more source

Interlayer‐Mediated Stabilization of Metastable P63cm ScFeO3 on Al2O3

Advanced Materials Interfaces, EarlyView.
This work develops an interlayer‐mediated stabilization method, demonstrated by the deposition of the P63cm phase of ScFeO3 ‐a metastable polymorph that exhibits multiferroic and optical properties not possible in the ground state. Thin films of the P63cm phase of ScFeO3 are stabilized on (0001) Al2O3 by the spontaneous formation of two atomic layers ...
Marshall B. Frye, Mengkun Tian, Eoin Moynihan, Ana Sanchez, Lauren M. Garten   +4 more
wiley   +1 more source

Enhanced Coupling Between Soft Ferromagnetism and Displacive Ferroelectricity in the Pb‐Site Modified PbFe1/2Nb1/2O3

Advanced Electronic Materials
Albeit having great potential toward unprecedented type of applications such as magnetoelectric (ME) sensors and memories, practically useful single‐phase multiferroics that show large coupling between ferromagnetism and ferroelectricity at ambient ...
Ji‐Hun Park, Jae‐Hyeon Cho, Nyun Jong Lee, Hyun‐Jae Lee, Ju‐Hyeon Lee, Geon‐Ju Lee, Frederick P. Marlton, Motohiro Suzuki, Manuel Hinterstein, Yoon Seok Oh, Ji‐Won Choi, Geon‐Tae Hwang, Jun Hee Lee, Sanghoon Kim, Kee Hoon Kim, Wook Jo   +15 more
doaj   +1 more source

Atomic‐Scale Mechanisms of Nucleation and Stabilization in CuCrO2 and CuFeO2 Delafossite Thin Films on Al2O3

Advanced Materials Interfaces, EarlyView.
In this work, a combination of 4D STEM phase reconstructions via iterative electron ptychography, spectroscopy, and conventional STEM imaging reveals detailed insights into the nucleation mechanism for the stable growth of Cu‐based delafossites on Al2O3 using CuCrO2 and CuFeO2 films grown via MBE as examples.
Anna Scheid, Qi Song, Stephanie Ribet, Colin Ophus, Y. Eren Suyolcu, Darrell G. Schlom, Tobias Heil, Peter A. van Aken   +7 more
wiley   +1 more source

Polar and magnetic order in GaV4Se8

, 2017
In the present work, we provide results from specific heat, magnetic susceptibility, dielectric constant, ac conductivity, and electrical polarization measurements performed on the lacunar spinel GaV4Se8.
Butykai, A., Geirhos, K., Kézsmárki, I., Loidl, A., Lunkenheimer, P., Ruff, E., Stefanet, E., Tsurkan, V., Widmann, S.   +8 more
core   +1 more source