Yuranan Hanlumyuang

TL;DR: Clear evidence is found via piezoresponse force microscopy and quantum mechanical calculations that both atomically thin and layered graphitic carbon nitride, or grapheneNitride, nanosheets exhibit anomalous piezoelectricity.

TL;DR: This work fabricates the thinnest possible nanocapacitor system, essentially consisting of only monolayer materials: h-BN with graphene electrodes, and finds a significant increase in capacitance below a thickness of ∼5 nm, more than 100% of what is predicted by classical electrostatics.

TL;DR: In this paper, a tensile test on single crystals of Gum Metal (Ti-36Nb-2Ta-3Zr-0.3O (wt.%)) showed that while a stress-induced β(bcc)→ α(orthorhombic) transformation occurred in a crystal pulled in the 〈1/1/0/α/α) direction, no transformation was observed in crystals pulled in either ǫ/ǫ 0/1 /ǫ 1/0

TL;DR: In this paper, the distortion tensor and elastic constants entering Eshelby's model for the segregation of C atoms to a dislocation core in Fe are computed directly using an electronic-structure-based the total energy method.

TL;DR: In this article, the structure of dislocation cores in elastically anisotropic materials is considered and a definition of the dislocation core radius is introduced and used to demonstrate that the elastic anisotropy that develops near a composition driven phase transition, such as that predicted for the Ti-Nb based alloys known as gum metals, can drive dislocated core radii to infinity.