Results 301 to 310 of about 170,968 (364)

Ferroelectric Control of Anisotropic Magnetoresistance in Ultrathin Sr2IrO4 Films toward 2D Metallic Limit

open access: yesAdvanced Physics Research, EarlyView.
Interfacing ferroelectric PbZr0.2Ti0.8O3 with ultrathin Sr2IrO4 tunes the antiferromagnetic Mott insulator into a 2D correlated metal. Switching the ferroelectric polarization induces nonvolatile, reversible resistance modulation in Sr2IrO4. The magnetoresisance in the heterostructure reveals the intriguing interplay of interfacial lattice coupling ...
Yuanyuan Zhang   +3 more
wiley   +1 more source

Observation of the Impact of Dislocations on Atomic Polarization and Domain Structures in BaTiO3

open access: yesAdvanced Physics Research, EarlyView.
Dislocations in ferroelectric BaTiO3 are investigated using in situ electric field TEM, solid‐state NMR, and synchrotron X‐ray diffraction. The study shows that dislocations modulate local atomic polarization and influence domain evolution by acting as nucleation sites and pinning centers for domain walls.
Shan Xiang   +7 more
wiley   +1 more source

Who was the real sabertooth predator: Thylacosmilus or Thylacoleo?

open access: yesThe Anatomical Record, EarlyView.
Abstract Sabertoothed mammalian predators, all now extinct, were almost exclusively feloid carnivorans (Eutheria, Placentalia): here a couple of extinct metatherian predators are considered in comparison with the placental sabertooths. Thylacosmilus (the “marsupial sabertooth”) and Thylacoleo (the “marsupial lion”) were both relatively large (puma ...
Christine M. Janis
wiley   +1 more source

Comparing cranial biomechanics between Barbourofelis fricki and Smilodon fatalis: Is there a universal killing‐bite among saber‐toothed predators?

open access: yesThe Anatomical Record, EarlyView.
Abstract Saber‐tooths, extinct apex predators with long and blade‐like upper canines, have appeared iteratively at least five times in the evolutionary history of vertebrates. Although saber‐tooths exhibit a relatively diverse range of morphologies, it is widely accepted that all killed their prey using the same predatory behavior. In this study, we CT‐
Borja Figueirido   +2 more
wiley   +1 more source

Morphological diversity of saber‐tooth upper canines and its functional implications

open access: yesThe Anatomical Record, EarlyView.
Abstract Elongated upper canine teeth, commonly known as saber‐teeth, have evolved three times within the sub‐order Feliformia. The species that wielded them flourished throughout the Cenozoic and have historically been separated into two morphological groups: the dirk‐tooths with longer, flatter canines, and the scimitar‐tooths with shorter, serrated ...
Caitlin D. Shelbourne   +1 more
wiley   +1 more source

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