Results 71 to 80 of about 44,734 (286)

Multibit Ferroelectric HfZrO Memcapacitor for Non‐Volatile Analogue Memory and Reconfigurable Electronics

Advanced Functional Materials, EarlyView.
Ferroelectric memcapacitors enable non‐volatile, voltage‐programmable capacitance tuning for adaptive electronics. A TiN/HfZrO/TiN device stack demonstrates more than eight stable capacitance states within a 24 pF memory window in compact 60 ×$\times$ 60 μm2$\umu{\rm m}^{2}$ devices at low operating voltages.
Deepika Yadav, Spyros Stathopoulos, Patrick Foster, Andreas Tsiamis, Mohamed Awadein, Hannah Levene, Themis Prodromakis   +6 more
wiley   +1 more source

More ferroelectrics discovered by switching spectroscopy piezoresponse force microscopy?

, 2014
The local hysteresis loop obtained by switching spectroscopy piezoresponse force microscopy (SS-PFM) is usually regarded as a typical signature of ferroelectric switching.
Li, Faxin, Miao, Hongchen, Tan, Chi, Wei, Xiaoyong, Zhou, Xilong   +4 more
core   +1 more source

Omnipolar Magnetic Field Detection by Superlattice‐Based Hall Sensor

Advanced Functional Materials, EarlyView.
Magnetic‐field‐induced electronic switching is demonstrated in unit‐cell‐engineered La0.7Sr0.3MnO3–BiFeO3 superlattices. Distinct substrate terminations modify magnetic and transport properties. Hall resistance measurements show omnipolar, hysteretic anomalous Hall switching above the Curie temperature, arising from Fe─Mn interfacial exchange, enabling
Mark Huijben, Nicolas Gauquelin, Arno Annys, Zhaoliang Liao, Jo Verbeeck, Guus Rijnders, Gertjan Koster   +6 more
wiley   +1 more source

Porous flexible molecular-based piezoelectric composite achieves milliwatt output power density

Nature Communications
Molecular ferroelectrics have made breakthrough progress in intrinsic piezoelectric response that can be on par with advanced inorganic piezoelectric ceramics.
Jia-Qi Luo, Hai-Feng Lu, Yi-Jing Nie, Yu-Hang Zhou, Chang-Feng Wang, Zhi-Xu Zhang, Da-Wei Fu, Yi Zhang   +7 more
doaj   +1 more source

Designing new ferroelectrics with a general strategy

npj Quantum Materials, 2017
Ferroelectricity: General approach for designing new ferroelectric materials An innovative computational method could enable the design of new classes of ferroelectric materials.
Ke Xu, Xue-Zeng Lu, Hongjun Xiang
doaj   +1 more source

Spatially Modulated Morphotropic Phase Boundaries in a Compressively Strained Multiferroic Thin Film

Advanced Functional Materials, EarlyView.
ABSTRACT The coexisting rhombohedral‐like (R′, MA) and tetragonal‐like (T′, MC) monoclinic phases in compressively strained bismuth ferrite thin films exhibit exceptional piezoelectric and magnetic properties. While previous studies have largely focused on probing the morphotropic phase boundaries (MPBs) comprising ordered R′/T′ twins, their self ...
Ting‐Ran Liu, Xiangwei Guo, Sajid Husain, Maya Ramesh, Pushpendra Gupta, Darrell Schlom, Ramamoorthy Ramesh, Yu‐Tsun Shao   +7 more
wiley   +1 more source

Molecularly Thin BaTiO3 Nanosheets with Stable Ferroelectric Response

Advanced Electronic Materials, 2023
2D ferroelectrics provide great promise for future electronics owing to their unique properties at 2D limit. Although simple perovskite oxides (such as BaTiO3 and PbTiO3) are an important target for 2D ferroelectrics, controlled synthesis of 2D ...
Kazuki Hagiwara, Ki Nam Byun, Shu Morita, Eisuke Yamamoto, Makoto Kobayashi, Xiaoyan Liu, Minoru Osada   +6 more
doaj   +1 more source

Polar Dynamics at the Jahn-Teller Transition in Ferroelectric GaV4S8

, 2015
We present a dielectric spectroscopy study of the polar dynamics linked to the orbitally driven ferroelectric transition in the skyrmion host GaV4S8. By combining THz and MHz-GHz spectroscopy techniques, we succeed in detecting the relaxational dynamics ...
Kézsmárki, I., Loidl, A., Lunkenheimer, P., Ruff, E., Schmidt, M., Tsurkan, V., Wang, Zhe   +6 more
core   +1 more source

Investigation of Halogen Substitution Effects in π‐Conjugated Organic Ligands of Chiral Hybrid Perovskites on Their Chiroptical Activity

Advanced Functional Materials, EarlyView.
The role of novel thiophene‐based ligands with halogen substitutions in enhancing the chiroptical and optoelectronic properties of 2D chiral HOIPs has been investigated. By tailoring ligand design, enhanced CD and CPL properties are achieved, with improved CPL discrimination in photodetectors.
Boesung Kwon, Doyeong Yeo, In‐Chul Hwang, In Hwan Jung, Joon Hak Oh   +4 more
wiley   +1 more source

Dynamics of relaxor ferroelectrics

, 2000
We study a dynamic model of relaxor ferroelectrics based on the spherical random-bond---random-field model and the Langevin equations of motion. The solution to these equations is obtained in the long-time limit where the system reaches an equilibrium ...
A. E. Glazounov, A. Levstik, B. E. Vugmeister, B. E. Vugmeister, B. Tadić, D. C. Mattis, G. A. Samara, G. A. Samara, H. Sompolinsky, J. Kosterlitz, L. E. Cross, L. E. Cross, L. F. Cugliandolo, L. F. Cugliandolo, N. Korner, R. Blinc, R. Blinc, R. Blinc, R. Pirc, R. Pirc, R. Pirc, V. Bobnar, V. Bobnar, V. Bobnar, V. Westphal, Y. Ishibashi, Z. Kutnjak, Z. Kutnjak   +27 more
core   +2 more sources