The mathematical modeling of microstructures in solids is a fascinating topic that combines ideas from different fields such as analysis, numerical simulation, and materials science. Beginning in the 80s, variational methods have been playing a prominent rôle in modern theories for microstructures, and surprising developments in the calculus of variations were stimulated by questions arising in this context.
Carbon nanotubes were identified for the first time in 1991 by Sumio Iijima at the NEC Research Laboratory, using high resolution transmission electron microscopy, while studying the soot made from by-products obtained during the synthesis of fullerenes by the electric arc discharge method.
The field of magnetic nanostructures is now an exciting and central area of modern condensed matter science, which has recently led to the development of a major new direction in electronics – so called ‘spintronics’.
Carbon nanotube (CNT) is the name of ultrathin carbon fibre with nanometer-size diameter and micrometer-size length and was accidentally discovered by a Japanese scientist, Sumio Iijima, in the carbon cathode used for the arc-discharging process preparing small carbon clusters named by fullerenes.
On January 21, 2000, President Clinton unveiled the National Nanotechnology Initiative (NNI) in a major policy address at Caltech. In his speech, he announced that his budget would propose almost doubling the federal investment in nanoscale science and engineering, from $270 million in FY2000 to $495 million in FY2001.
So far as it goes, a small thing may give analogy of great things, and show the tracks of knowledge.
from De Rerum Natura (On The Nature of Things) Lucretius (99-55 BC)
In the world of nanoparticles and microporous materials, the interaction forces between nanosized particles and molecules from the surrounding medium, or the forces between particles themselves,
Few terms have been more commonly used and abused in the scientific literature than nano. However, if one is able to sift through the vast amounts of nano literature, there are also numerous reports that are of both academic and commercial importance. This is particularly true for the field of catalysis in which rapid progress is being made that has transformed this once black art into a science, which is understood on a molecular and even atomic level.
On December 29, 1959 at the California Institute of Technology, Nobel Laureate Richard P. Feynman gave a talk at the Annual meeting of the American Physical Society that has become one classic science lecture of the 20th century, titled “There’s Plenty of Room at the Bottom.” He presented a technological vision of extreme miniaturization in 1959, several years before the word “chip” became part of the lexicon.
The advances in ultra-large-scale integration (ULSI) technology mainly have been based on downscaling of the minimum feature size of complementary metal-oxide semiconductor (CMOS) transistors. The limit of scaling is approaching and there are unsolved problems such as the number of electrons in the device’s active region.
This book addresses the engineering student and practising engineer. It takes an engineering-oriented look at semiconductors. Semiconductors are at the focal point of vast number of technologists, resulting in great engineering, amazing products and unheard-of capital growth. The work horse here is of course silicon.
