Ga:La:S:Cu films have been prepared by sputter deposition. Amorphous thin films were fabricated with Cu concentrations as high as 66 at.%. The electrical phase change properties of these films have been investigated. The electrical resistivity of these materials is 200 Om in the amorphous state and 40 Om in the crystalline state. The crystallisation time was measured using an optical pump probe...

Climate change is real and it will not go away unless we do something for improving our climate. There hope that global efforts could help avoid an environmental catastrophe, based on current scientific developments in energy systems, storage, renewable sources, understanding of the Earths feedback mechanism. However, action plan must be comprehensive, collaborative approaches, cutting-edge sci...

Abstract Through its potential to contribute mass suffering, economic disruption, and social unrest, climate change poses a security threat the constitutional identities of states (as democratic, autocratic, or hybrid regimes). This paper proposes conceptual framework mediated causality for climatic impacts on identity engages in novel theory-building one mediating vector change: post-fossil en...

| In this paper, recent progress of phase change memory (PCM) is reviewed. The electrical and thermal properties of phase change materials are surveyed with a focus on the scalability of the materials and their impact on device design. Innovations in the device structure, memory cell selector, and strategies for achieving multibit operation and 3-D, multilayer high-density memory arrays are des...