Results 121 to 130 of about 64,615 (313)

Piezoresponse force microscopy study on ferroelectric polarization of ferroelectric polymer thin films with various structural configurations

AIP Advances, 2015
Ferroelectric polymer-based memory devices have attracted much attention due to their potential in low-cost flexible memories. However, bad retention property of recorded logic states limited their applications. Though mechanisms of retention degradation
Zongyuan Fu, Jianchi Zhang, Junhui Weng, Weibo Chen, Yulong Jiang, Guodong Zhu   +5 more
doaj   +1 more source

Microscopia de força piezoeléctrica de relaxors ferroeléctricos

, 2010
Doutoramento em Ciência e Engenharia de MateriaisNesta tese, ferroeléctricos relaxor (I dont know uf the order is correct) de base Pb das familias (Pb,La)(Zr,Ti)O3 (PLZT), Pb(Mg1/3,Nb2/3)O3-PbTiO3 (PMN-PT), Pb(Zn1/3,Nb2/3)O3-PbTiO3 (PZN-PT) foram ...
Kiselev, Dmitry
core  

Ordered nano-scale domains in lithium niobate single crystals via phase-mask assisted all-optical poling

, 2007
We report the formation of directionally-ordered nanoscale surface domains on the +z face of undoped congruent lithium niobate single crystals by using UV illumination through a phase mask with an energy fluence between ~90mj/cm2 and 150 mJ/cm2 at lambda
Sono, T.J., Sones, C.L., Wellington, I.T., Mailis, S., Valdivia, C.E., Eason, R.W.   +5 more
core   +1 more source

Ultrahigh resolution of lead zirconate titanate 30/70 domains as imaged by piezoforce microscopy. [PDF]

, 2002
Piezoforce microscopy (PFM) has been used to determine the domain structure of lead zirconate titanate (PZT) (30/70) on an indium tin oxide (ITO)/glass substrate with a TiO2 boundary layer.
Dunn, Steve, Dunn, S, Shaw, Christopher P., Huang, Z, Whatmore, Roger W., Huang, Zhaorong, Whatmore, RW, Shaw, CP   +7 more
core   +1 more source

From the Discovery of the Giant Magnetocaloric Effect to the Development of High‐Power‐Density Systems

Advanced Materials Technologies, EarlyView.
The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz, Yaroslav Mudryk, Jun Cui, Lucas Griffith, Duane D. Johnson, Julie Slaughter   +5 more
wiley   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

Advanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source

Ferroelectric polarization and magnetic structure at domain walls in a multiferroic film

Nature Communications
Domain walls affect significantly ferroelectric and magnetic properties of magnetoelectric multiferroics. The stereotype is that the ferroelectric polarization will reduce at the domain walls due to the incomplete shielding of depolarization field or the
Ang Tao, Yixiao Jiang, Shanshan Chen, Yuqiao Zhang, Yi Cao, Tingting Yao, Chunlin Chen, Hengqiang Ye, Xiu-Liang Ma   +8 more
doaj   +1 more source

Bridging Boltzmann and Non‐Boltzmann Optical Thermometry Enabled by Multimodal Perovskite Nanocrystals

Advanced Optical Materials, EarlyView.
Multimodal perovskite nanocrystals enable optical thermometry across multiple excitation and emission regimes, spanning the UV–Vis–NIR spectral range. By combining upconversion, downshifting, and persistent luminescence, the platform bridges conventional Boltzmann and non‐Boltzmann thermometric approaches.
Adrian Drozdowski, Kevin Soler‐Carracedo, Tomasz Grzyb   +2 more
wiley   +1 more source

Helix Alignment, Chevrons, and Edge Dislocations in Twist‐Bend Ferroelectric Nematics

Advanced Science, EarlyView.
The recently discovered twist‐bend ferroelectric nematic (NTBF) is the new member of the multiferroic family, representing a fluid with an oblique helicoidal (heliconical) periodic structure of spontaneous electric polarization. The work presents a thorough exploration of the material properties of this phase, how the periodic modulation of ...
Bijaya Basnet, Priyanka Kumari, Sathyanarayana Paladugu, Damian Pociecha, Jakub Karcz, Przemysław Kula, Nataša Vaupotič, Ewa Górecka, Oleg D Lavrentovich   +8 more
wiley   +1 more source

Study of Imprint Dynamics in HZO Ferroelectric Capacitors

, 2023
International audienceThe discovery of the ferroelectric orthorhombic phase in doped HfO2 gave a major boost to the interest for integrated ferroelectric oxides in the CMOS industry [1].
Segantini, Greta, Deleruyelle, Damien, Manchon, Benoît, Rojo Romeo, Pedro, Drouin, Dominique, Canero Infante, Ingrid, Vilquin, Bertrand   +6 more
core   +1 more source