Spintronics in nanostructures
Ulrich Zuelicke
[email protected]
Institute of Fundamental Sciences, Massey University, Palmerston North, New Zealand
and
MacDiarmid Institute of Advanced Materials and Nanotechnology
Outline
Introduction
electron spin + electronics = spintronics (S. Wolf, 1996)
magnetoelectronics and its applications
Magnetoelectronics with new magnets
ferromagnetic semiconductors
organic spintronics
Spintronics from spin interference
spin-dependent electron interferometers
entanglement generatio ....etc

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1.INTRODUCTION
1.1 GREEN ENGINEERING:
Green Engineering is the design, commercialization and use of processes and products that are feasible and economical while:
  Reducing the generation of pollution at the source.

  Minimizing the risk to human health and the environment.
 Green engineering embraces the concept that decisions to protect human health and the environment can have the greatest impact and cost effectiveness when applied early to the design and development phase of a process o ....etc

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Sensitive skin is a large-area, flexible array of sensors with data processing capabilities, which can be used to cover the entire surface of a machine or even a part of a human body. Depending on the skin electronics, it endows its carrier with an ability to sense its surroundings via the skinâ„¢s proximity, touch, pressure, temperature, chemical/biological, or other sensors. Sensitive skin devices will make possible the use of unsupervised machines operating in unstructured, unpredictable surroundings among people, among many obstacles, o ....etc

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INTRODUCTION

Invented by Alois Senefelder in Germany in 1798
Fundamentally new printing technology
Mechanical Plano graphic process in which the printing and non-printing areas of the plate are all at the same level

Dip-Pen Nanolithography

DPN is a unique modification of atomic force microscope (AFM) instrumentation.
High-resolution patterning capabilities for a number of molecular and biomolecular Ëœinksâ„¢ on a variety of substrate types such as metals, semiconductors, and monolayer fu ....etc

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Protein based nanostructures
Applications
Disadvantages
Types ....etc

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ABSTRACT
A host of novel applications and new physics could be unleashed as Micro-Electro-Mechanical Systems (MEMS) shrink towards the nano scale. The time is ripe for a concerted exploration of Nano-Electro-Mechanical-Systems (NEMS) - i.e. machines, sensors, computers and electronics that are on the nano-scale. Many years of research by university, government, and industrial groups have been devoted to developing cutting-edge NEMS technologies for enabling revolutionary NEMS devices. NEMS has revolutionized nearly ever ....etc

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Abstract
Molecular electronics (sometimes called moletronics) is an interdisciplinary theme that spans physics, chemistry, and materials science. The unifying feature of this area is the use of molecular building blocks for the fabrication of electronic components, both passive (e.g. resistive wires) and active (e.g. transistors). The concept of molecular electronics has aroused much excitement both in science fiction and among scientists due to the prospect of size reduction in electronics offered by molecular-level co ....etc

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Let me download so that i can give my comments
let me download the presentation to give my comments ....etc

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NANOGENERATORS
ABSTRACT
Power is always an essential attrocity, and the need for same remains an un-ending requirement .On the wheel of development of todayâ„¢s multifaceted technology, newer methods are invented with a phenomenal pace .Generation of power is thus a technological infrastructure that needs to be updated in par with the inventions. Here ,a newer class of generators are being introduced. In accordance to the miniaturization trend a miniature power generator namely, Nanogenerator. Small scale electrical generator includes a ....etc

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ABSTRACT
Imagine a supercomputer no bigger than a human cell. Imagine a four-person, surface-to-orbit spacecraft no larger or more expensive than the family car. Imagine attaining immortality by drinking a medicine. These are just a few products expected from Nanotechnology.
Nanotechnology is molecular manufacturing or, more simply, building things one atom or molecule at a time with programmed nanoscopic robot arms; Nanotechnology proposes the construction of novel molecular devices possessing extraordin ....etc

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Abstract:
A nanometer is one billionth of a meter. If you blew up a baseball to the size of the earth, the atoms would become visible, about the size of grapes. Some 3- 4 atoms fit lined up inside a nanometer. Nanotechnology is about building things atom by atom, molecule by molecule. The trick is to be able to manipulate atoms individually, and place them where you wish on a structure.

Nanotechnology uses well known physical properties of atoms and molecules to make novel devices with ex ....etc

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Electroplating
The chemical conversion of ions in solution into a solid deposit of metal atoms with the work of a electrical power supply
Amount of Deposition
The number of atoms deposited is proportional to the number of electrons passed through the circuit
- We can determine this by measuring the current
Amount of Deposition (cont.)
Note that these equations assume 100% current efficiency (CE) - that is, assuming that all of the electrons are used for converting metal ions. However, another redu ....etc

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Submitted by,
K.Varadharajan
S.Vasanth

ABSTRACT:

Nanorobots are nanodevices that will be used ....etc

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