The study of hydrogen in condensed matter is of significant importance in modern technology. Hydrogen affects the mechanical, electrical and optical properties of many materials and causes embrittlement of metals; changes the optical properties of rare-earth metals and affects the defect structure of most semiconductors. Because hydrogen often moves easily through most materials, its motion leads to changes in these material properties. Because hydrogen is viewed as a potentially clean fuel source of the future, storage, transport and diffusion are of significant societal importance. The study of hydrogen in condensed matter consists of two major subfields -hydrogen in semiconductors and hydrogen in metals and despite their connection, research has often proceeded independently and advances in one are not fully utilized in the other. This book brings these two subfields together. Topics include: hydrogen on surfaces; theory and thermodynamics; hydrogen transport phenomena; nuclear characterization techniques; compound semiconductors; bulk metal; devices and applications; bulk silicon; and carbon and carbon-like materials.
