Super conductors,properties and its application and BCS theorysmithag7
superconductors:-Introduction, definition, type1,type2 and atypical. Preparation of high temperature super conductor-Y1 Ba2Cu3Ox±δ, BCS theory and general application of high temperature super conductors.
Super conductors,properties and its application and BCS theorysmithag7
superconductors:-Introduction, definition, type1,type2 and atypical. Preparation of high temperature super conductor-Y1 Ba2Cu3Ox±δ, BCS theory and general application of high temperature super conductors.
Basic Information regarding superconductors.
Superconductivity is a phenomenon of exactly zero electrical resistance and expulsion of magnetic fields occurring in certain materials when cooled below a characteristic critical temperature.
This power-point presentation include
1. Introduction to Superconductors
2. Discovery
3. Properties
4. Important factors
5. Types
6. High Tc Superconductors
7. Magnetic Levitation and its application
8. Josephson effect
9. Application of superconductors
#Tip- You can further add videos which are available in vast amount on YouTube regarding superconductivity(specially magnetic levitation)
P.S.Does not contain information about Cooper pairs and BCS theory
Basic Information regarding superconductors.
Superconductivity is a phenomenon of exactly zero electrical resistance and expulsion of magnetic fields occurring in certain materials when cooled below a characteristic critical temperature.
This power-point presentation include
1. Introduction to Superconductors
2. Discovery
3. Properties
4. Important factors
5. Types
6. High Tc Superconductors
7. Magnetic Levitation and its application
8. Josephson effect
9. Application of superconductors
#Tip- You can further add videos which are available in vast amount on YouTube regarding superconductivity(specially magnetic levitation)
P.S.Does not contain information about Cooper pairs and BCS theory
The principles of physics, as far as I can see, do not speak
against the possibility of maneuvering things atom by atom.”
“Put the atoms down where the chemist says, and so you make
the substance.”
SINGLE ELECTRON TRANSISTOR: APPLICATIONS & PROBLEMSVLSICS Design
The goal of this paper is to review in brief the basic physics of nanoelectronic device single-electron transistor [SET] as well as prospective applications and problems in their applications. SET functioning based on the controllable transfer of single electrons between small conducting "islands". The device properties dominated by the quantum mechanical properties of matter and provide new characteristics coulomb oscillation, coulomb blockade that is helpful in a number of applications. SET is able to shear domain with silicon transistor in near future and enhance the device density. Recent research in SET gives new ideas which are going to revolutionize the random access memory and digital data storage technologies.
Single Electron Transistor: Applications & Problems VLSICS Design
The goal of this paper is to review in brief the basic physics of nanoelectronic device single-electron transistor [SET] as well as prospective applications and problems in their applications. SET functioning based on the controllable transfer of single electrons between small conducting "islands". The device properties dominated by the quantum mechanical properties of matter and provide new characteristics coulomb oscillation, coulomb blockade that is helpful in a number of applications. SET is able to shear domain with silicon transistor in near future and enhance the device density. Recent research in SET gives new ideas which are going to revolutionize the random access memory and digital data storage technologies.
Background/Objectives: The main aim of this research paper is to evaluate thedifferent linearly polarized
modes for two channel MDM passive optical network. Methods/Statistical Analysis: In this work mode division
multiplexing from 48 users. Three different combinations of linear polarized modes is tested for odd modes,
even modes and consecutive modes.System evaluated for 55 Km also on higher launched powers.Findings:
Results revealed that mode number 1,3 and 5 perform better and suffered from less mode crosstalk. However
even modes perform less effective than odd modes but better than mode number 1,2 and 3.Further 16 user for
each mode is splitted and 10 dB optimal power is found, beyond this power system performance degrated.LP 01
provide maximum quality factor and worst in case of LP 21 mode.
Acetabularia Information For Class 9 .docxvaibhavrinwa19
Acetabularia acetabulum is a single-celled green alga that in its vegetative state is morphologically differentiated into a basal rhizoid and an axially elongated stalk, which bears whorls of branching hairs. The single diploid nucleus resides in the rhizoid.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
Biological screening of herbal drugs: Introduction and Need for
Phyto-Pharmacological Screening, New Strategies for evaluating
Natural Products, In vitro evaluation techniques for Antioxidants, Antimicrobial and Anticancer drugs. In vivo evaluation techniques
for Anti-inflammatory, Antiulcer, Anticancer, Wound healing, Antidiabetic, Hepatoprotective, Cardio protective, Diuretics and
Antifertility, Toxicity studies as per OECD guidelines
1. Density of states in 2D (Qualitative treatment)
21PYB102J Module-V Lecture-1
DEPARTMENT OF PHYSICS
SRM INSTITUTE OF SCIENCE AND TECHNOLOGY
21PY102J – Physics: Semiconductor Physics and Computational methods
Module-V, Lecture-1
SLO 1
2. Density Of States
• The density of states function describes the number of
energy states that are available in a system and is
essential for determine the carrier concentrations and
energy distributions of carriers within a
semiconductor.
• In semiconductors, the free motion of carriers is
limited to two, one and zero spatial dimensions.
When applying semiconductor statistics to systems of
these dimensions, the density of states in quantum
well (2D), quantum wires (1D) and quantum dots
(0D) must be known.
2
3. Density of states in 3D
3
The number of allowed single-particle (electron/ hole) states
with energies between E and E+dE, in an element of
length/area/volume.
4. Density of states in
lower-dimensional systems
• Three-dimensional electron or hole obtained by doping semiconductors are
not ideal for studying quantum effects for two reasons: (i) they are strongly
disordered owing to the background of ionized impurities and (ii) the most
quantum effects are more pronounced in lower-dimensional systems than
those of bulk constituents.
• Therefore, reduction in the dimensionality of a physical system has
profound consequences on its profile and new types of electronic and
photonic devices can be designed. These devices make use of electron
motion through potentials that change rapidly on a length scale comparable
to the wavelength associated with the electron and they operate on the rules
of quantum mechanics.
• The low dimensional semiconductor systems play a critical role in
determining the properties of materials due to the different ways that
electrons interact in two-dimensional, one-dimensional and zero-
dimensional structures.
4
5. Density of states in
lower-dimensional systems
• A low-dimensional system is one where the motion of microscopic
degrees-of-freedom, such as electrons, phonons or photons, is restricted
from exploring the full three dimensions of the present world.
• In the low dimensional quantum systems such as Quantum well, Quantum
wire and Quantum dot, the charge carriers are free to move in two, one and
zero dimensions respectively.
• This high confinement brings out new effects of great technological
potential applications. Quantum mechanics plays a major role as the
semiconductor size approaches the nanoscale.
• The main advantages of these low dimensional semiconductor systems are
in the realizations of important devices, like the double heterostructure
lasers with low threshold at room temperature, high effective LEDs, bipolar
transistors, p-n-p-n switching devices, high electron mobility transistors
(HEMT) and many other optoelectronic devices.
5
6. Density of states in 2D
• Quantum effects arise in systems which confine electrons to
regions comparable to their de Broglie wavelength. When such
confinement occurs in one dimension only (say, by a
restriction on the motion of the electron in the z-direction),
with free motion in the x- and y-directions, a two-dimensional
system is created.
• Consider a slab of material that has macroscopic dimensions in
the x- and y directions while the thickness is small (in the
nanometer range-Quantum Well).
6
9. Density of states in 2D
• It is important to notice that the 2D density of states is
independent of the energy. However, DOS depends on the
number of levels and is thus a sum of the contributions from
the discrete levels appearing as a result of the quantization.
9