Results 241 to 250 of about 191,999 (308)

Single-crystalline BaTiO<sub>3</sub>-based ferroelectric capacitive memory via membrane transfer. [PDF]

open access: yesSci Adv
Zhang X   +17 more
europepmc   +1 more source

Triggered Ferroelectricity in HfO2 From Hybrid Phonons and Higher‐Order Dynamical Charges

open access: yesAdvanced Materials, EarlyView.
We combine first‐principles calculations, LGD theory and group theory to demonstrate the mechanism of hybrid‐triggered ferroelectricity in HfO2${\rm HfO}_2$, enabled by trilinear and quadlinear couplings between stable polar and nonpolar modes. HfO2${\rm HfO}_2$ hosts unconventional interplay between structure modes where substantial contribution to ...
Seongjoo Jung, Turan Birol
wiley   +1 more source

Anomalous Spin‐Optical Helical Effect in Ti‐Based Kagome Metal

open access: yesAdvanced Materials, EarlyView.
The kagome lattice hosts diverse correlated quantum states, including elusive loop currents. We report spin‐handedness selective signals in CsTi3Bi5, termed the anomalous spin‐optical helical effect, surpassing conventional spin responses. Arising from light helicity coupled to spin‐orbital correlations, this effect provides a sensitive, indirect probe
Federico Mazzola   +34 more
wiley   +1 more source

Millimeter-wave dielectric tunability driven by topological polar structure switching in PbTiO<sub>3</sub>/SrTiO<sub>3</sub> superlattices. [PDF]

open access: yesNat Commun
Wang S   +12 more
europepmc   +1 more source

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