Cover Feature: Ge ₃₂ Co _{9− <i>x</i>} : Creating “Empty” Space by High Pressure (Chem. Eur. J. 16/2023)

Toward the Ultimate Limit of Phase Change in Ge₂Sb₂Te₅

The limit to which the phase change memory material Ge2Sb2Te5 can be scaled toward the smallest possible memory cell is investigated using structural and optical methodologies. The encapsulation material surrounding the Ge2Sb2Te5 has an increasingly dominant effect on the material’s ability to change phase, and a profound increase in the crystallization temperature is observed when the Ge2Sb2Te...

Magnetic and electronic properties of Eu₄Sr₄Ga₁₆Ge₃₀

Heterogeneity of Molecular Structure of Ag Photo-Diffused Ge₃₀Se₇₀ Thin Films

Silver photodiffusion in thin Ge30Se70 films is investigated in order to understand the structure forming in the Ge-Se host after introduction of Ag in it. Optical micrographs point towards formation of homogeneous films after deposition of the Ge-Se material on glass substrate. This structure changes and occurrence of heterogeneous regions is imaged after Ag is introduced into the Ge-Se host. ...

Optimal feature sub-space selection based on discriminant analysis

The performance of a speech recogniser, or of any other pattern classifier, strongly depends on the input features: to obtain a good performance, the feature set needs to be both highly discriminative and compact. Linear discriminant analysis (LDA) is a common data-driven method used to find linear transformations that map large feature vectors onto smaller ones while retaining most of the disc...

Direct Experimental Evidence for Atomic Tunneling of Europium in Crystalline Eu₈Ga₁₆Ge₃₀