Severe plastic deformations (SPD) under high pressure, mostly by high-pressure torsion, are
employed for producing nanostructured materials and stable or metastable high-pressure …

Ultrafine-grained and heterostructured materials are currently of high interest due to their
superior mechanical and functional properties. Severe plastic deformation (SPD) is one of …

Closing the gap between experiments and simulations in the investigation of high-pressure
silicon phase transitions calls for advanced, new-generation modeling approaches. By …

Different phases of Ga2O3 have been regarded as superior platforms for making new‐
generation high‐performance electronic devices. However, understanding of thermal …

Pressure-induced phase transformations (PTs) in Si, the most important electronic material,
have been broadly studied, whereas strain-induced PTs have never been studied in situ …

Hexagonal Si allotropes are expected to enhance light absorption in the visible range as
compared to common cubic Si with diamond structure. Therefore, synthesis of these …

Severe plastic deformation (SPD) has been widely studied in order to enhance the strength
and ductility of metallic materials. Among various SPD processing techniques, high-pressure …

We report the synthesis of bulk, highly oriented, crystalline 4 H hexagonal silicon (4 H-Si),
through a metastable phase transformation upon heating the single-crystalline Si 24 …

Hexagonal silicon (Si-IV) has recently attracted considerable research interest due to its
extraordinary optical properties and possibility to convert into a direct semiconductor under …

The structural properties, electronic band structures, mechanical anisotropy, and the stability
of Si, SiGe, Ge, GeSn, and Sn in the Cmca phase are comprehensively investigated in this …