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Recent Advances in Bulk Crystal Growth

Published online by Cambridge University Press:  31 January 2011

Roberto Fornari  and
Michael Roth
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Abstract

The growth of high-quality single crystals remains a challenging endeavor of materials science. Crystals of suitable size (from fiber crystals with diameters of tens of micrometers up to crystalline ingots or blocks with volumes up to 1 m3) and perfection (free from precipitates, inclusions, and twins with good uniformity and low concentration of dislocations) are required for fundamental research and practical implementation in microelectronic circuits, electro-optic switches and modulators, solid-state lasers, light-emitting diodes, sensors, and many other devices. In this introductory article of this issue of MRS Bulletin, we describe the two main challenges of today's crystal growth, namely (1) the production of well-established crystalline materials with improved structural perfection and larger size at a lower cost and (2) the bulk growth of new categories of materials with extreme thermodynamic characteristics, such as a very high melting point, high melting dissociation pressure, incongruent phase diagram, and anisotropic segregation. The subsequent six articles provide examples of how the crystal growers took up these challenges, which led to new experimental approaches and technological advances.

Type
Research Article
Information
MRS Bulletin , Volume 34 , Issue 4: Recent Advances in Bulk Crystal Growth , April 2009 , pp. 239 - 244
Copyright
Copyright © Materials Research Society 2009

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