Results 191 to 200 of about 15,119 (267)

The Coupling of Ferroelectric Polarization and Oxygen Vacancy Migration Enables Electrically Controlled Thermal Memories. [PDF]

Adv Mater
Barneo D, Royo M, Ramos R, Carrete J, Romero-Bernad H, Jiménez R, Leborán V, Magén C, Varela-Domínguez N, Algueró M, Rurali R, Pardo JA, Rivadulla F, Langenberg E.   +13 more
europepmc   +1 more source

Efficient Hot Carrier Management in Lead Halide Perovskite Micro‐Disks Revealed by Super‐Diffusive Migration

Advanced Science, EarlyView.
Hot‐carrier transport in metal halide perovskites is investigated using spatiotemporally‐resolved photoluminescence microscopy. Mesa‐shaped MAPbBr3 microdisks exhibit anomalous super‐diffusive carrier propagation on nanosecond timescales, driven by hot‐carrier stabilization and strong carrier–phonon coupling.
Nithin Pathoor, Shun Omagari, Martin Vacha   +2 more
wiley   +1 more source

Unconventional magnon-mediated spin torque enabled by ferroelectric domain engineering in multiferroic BiFeO₃. [PDF]

Nat Commun
Liang Y, Yan X, Jiang X, Jiang D, Bai H, Wang ZA, Chen H, Qiu X, Pharis D, Huang X, Jain R, Shao D, Jiang W, Yi D, Ralph DC, Nan T.   +15 more
europepmc   +1 more source

Real‐Time Ferroelectric Domain Wall Dynamics During Electric Poling and Depoling

Advanced Science, EarlyView.
Real‐time visualization of domain wall dynamics during alternating‐current poling, direct‐current poling, and electrical depoling in relaxor‐PT ferroelectric single crystals reveals distinct field‐dependent pathways and strong path dependence. Instant polarized light microscopy uncovers reversible domain wall nucleation, motion, and reconfiguration ...
Ziqi Wang, Zhengze Xu, Anastasia Timofeeva, Hossam Elnaggar, Sipan Liu, Yusen Pei, Reece Henry, Brendan O'Connor, Eunkyoung Shim, Franky So, Kara Peters, Xiaoning Jiang, Jun Liu   +12 more
wiley   +1 more source

Hybrid antiferroelectric-ferroelectric domain walls in noncollinear antipolar oxides. [PDF]

Nat Nanotechnol
Ushakov IN, Topstad M, Khalid MZ, Sharma N, Grams CP, Ludacka U, He J, Hunnestad KA, Sadeqi-Moqadam M, Glaum J, Selbach SM, Hemberger J, Becker P, Bohatý L, Kumar A, Íñiguez-González J, van Helvoort ATJ, Meier D.   +17 more
europepmc   +1 more source

Relaxor Ferroelectricity Enables Enhanced Thermoelectric Performance in In2Se3‐Alloyed GeTe

Advanced Science, EarlyView.
A non‐equimolar In3+/Se2− alloying strategy creates Ge vacancies in GeTe, inducing relaxor ferroelectricity that broadens the low thermal conductivity window. Simultaneously, cubic phase stabilization broadens optimal electrical transport, achieving an average zT > 1.0 over 330–625 K.
Yuting Zhang, Yang Li, Jianguo Chen, Kai Guo, Jun Luo, Jiye Zhang   +5 more
wiley   +1 more source

Ferroelectric nanodot reservoir for neuromorphic computing. [PDF]

Beilstein J Nanotechnol
Razumnaya A, Tikhonov Y, Naidenko D, Boron L, Vinokur V, Lukyanchuk I.   +5 more
europepmc   +1 more source

Hydrogen‐Stabilized Self‐Rectifying Memristor Arrays for Reliable Multilevel Synapses in Transformer‐Based Keyword Spotting

Advanced Science, EarlyView.
A non‐filamentary self‐rectifying HfO2/TiOx resistive random‐access memory integrates H2 annealing with an incremental step pulse with verify algorithm to achieve stable and linear analog conductance modulation. The device enables low‐current 6‐bit multilevel operation while suppressing sneak current in crossbar arrays. Implemented in Transformer‐based
Seonjeong Lee, Seohyeon Ju, Won Joo Lee, Myounggon Kang, Sungjun Kim, Yoon Kim   +5 more
wiley   +1 more source

A unified symmetry framework for spin-ferroelectric coupling in altermagnetic multiferroics. [PDF]

Nat Commun
Sun W, Wang W, Yang C, Huang S, Cheng Z.
europepmc   +1 more source

Stretchable, Tough, and Luminescent Perovskite Molecular Ferroelectric Composite: Empowering Reliable Self‐Powered Motion Sensing in High Humidity and Subzero Temperatures

Advanced Science, EarlyView.
A flexible molecular ferroelectric composite is fabricated via in situ growth of luminescent DMAA‐MnCl3 ferroelectric crystals within a SEBS/SIS double‐polymer matrix. It delivers 7.54 MPa tensile strength, over 1200% tensile strain, durable piezoelectric motion sensing, and excellent harsh‐environment stability for all‐weather wearable biomechanical ...
Shuangqing Li, Zhe‐Kun Xu, Zheng Xing, Jin‐Wang Liu, Yong‐Quan Wu, Peng‐Fei Li, Zhong‐Xia Wang   +6 more
wiley   +1 more source