R.A. Stradling – författare
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3 produkter
3 produkter
Inbunden, Engelska, 1991
2 206 kr
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Since the first reports on metastable defects in III-V and II-VI compound semiconductors appeared in the late 1960s, the number of reports on defects with metastable states has been growing at an ever increasing rate. D(X)-center and other metastability defects cause many technical problems that are exacerbated by the uncertainty and controversy surrounding the mechanisms that cause them.A lively mix of theoretical and experimental discussions, D(X)-Centres and other Metastable Defects in Semiconductors presents a timely investigation of these systems. The book discusses topics such as, the validity of negative or positive U models, as well as alternative views that challenge existing ideas. The richness and precision of experimental data now emerging in the field is chronicled as are new investigative techniques. Based on an INT symposium, this book provides a successful forum where an extraordinary variety of ideas, including new perspectives, are examined critically.
Inbunden, Engelska, 2025
1 351 kr
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First published in 1981, Europe and the Decline of Spain deals with the slow ebbing of Spanish power, its ‘melancholy, long, withdrawing roar’ during the ‘long seventeenth century’ of pre-industrial Europe. The author looks at the fortunes of Spanish European hegemony from its apogee late in the reign of Philip II to its ultimate failure and dissolution about a century later.The author examines the dynamic spiritual and material resources of Spain as a politico-military system of continental dominance and control. He places the system in a context of continuous general European war, and structures and events in Spain and its provinces are set in this context.A feature of the book is the description of changing approaches to the Spanish system by its major adversaries. This, along with a fresh look at the events themselves, has conditioned a reinterpretation of Spain’s ‘political’ decline which stresses its centrality to an overview of the whole period.
Häftad, Engelska, 2011
540 kr
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This volume contains the Proceedings of the NATO Advanced Research Workshop on "Optical Properties of Narrow-Gap Low-Dimensional Structures", held from July 29th to August 1st, 1986, in St. Andrews, Scotland, under the auspices of the NATO International Scientific Exchange Program. The workshop was not limited to optical properties of narrow-gap semiconductor structures (Part III). Sessions on, for example, the growth methods and characterization of III-V, II-VI, and IV-VI materials, discussed in Part II, were an integral part of the workshop. Considering the small masses of the carriers in narrow-gap low dimensional structures (LOS), in Part I the enhanced band mixing and magnetic field effects are explored in the context of the envelope function approximation. Optical nonlinearities and energy relaxation phenomena applied to the well-known systems of HgCdTe and GaAs/GaAIAs, respectively, are reviewed with comments on their extension to narrow gap LOS. The relevance of optical observations in quantum transport studies is illustrated in Part IV. A review of devices based on epitaxial narrow-gap materials defines a frame of reference for future ones based on two-dimensional narrow-gap semiconductors; in addition, an analysis of the physics of quantum well lasers provides a guide to relevant parameters for narrow-gap laser devices for the infrared (Part V). The roles and potentials of special techniques are explored in Part VI, with emphasis on hydrostatic pressure techniques, since this has a pronounced effect in small-mass, narrow-gap, non-parabolic structures.