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5 papers · 2 filters
Pathways Towards Ferroelectricity in Hafnia
Tran Doan Huan, Vinit Sharma, George A. Rossetti +1
The question of whether one can systematically identify (previously unknown) ferroelectric phases of a given material is addressed, taking hafnia (HfO) as an example. Low free…
Inelastic X-ray scattering from valence electrons near absorption edges of FeTe and TiSe
B. Barbiellini, J. N. Hancock, C. Monney +4
We study resonant inelastic x-ray scattering (RIXS) peaks corresponding to low energy particle-hole excited states of metallic FeTe and semi-metallic TiSe for photon incident e…
Nanothermal Characterization of Amorphous and Crystalline Phases in Chalcogenide Thin Films with Scanning Thermal Microscopy
J. L. Bosse, M. Timofeeva, P. D. Tovee +3
The thermal properties of amorphous and crystalline phases in chalcogenide phase change materials (PCM) play a key role in device performance for non-volatile random-access memory.…
Nanomechanical morphology of amorphous, transition, and crystalline domains in phase change memory thin films
James L. Bosse, Ilya Grishin, Bryan D. Huey +1
In the search for phase change materials (PCM) that may rival traditional random access memory, a complete understanding of the amorphous to crystalline phase transition is require…
Predicting Polymeric Crystal Structures by Evolutionary Algorithms
Qiang Zhu, Vinit Sharma, Artem R Oganov +1
The recently developed evolutionary algorithm USPEX proved to be a tool that enables accurate and reliable prediction of structures for a given chemical composition. Here we extend…