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Pat's Perovskites
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Добавлен 1 янв 2012
This channel contains lectures and other educational material that pertain to the chemistry and physics of solids, particularly functional materials. Topics covered include solid state chemistry, materials chemistry, crystallography, and X-ray diffraction methods.
Section 11.6 - Phase Diagrams
This lecture accompanies my Chem 1210 course at Ohio State University. The lecture covers material in section 11.6 of our textbook, Chemistry: The Central Science. The main topic of the lecture is interpreting one component phase diagrams.
Просмотров: 87
Видео
Section 11.5 - Vapor Pressure
Просмотров 592 часа назад
This lecture accompanies my was created to accompany my chem 1210 course at Ohio State University. It covers material in Section 11.5 of our textbook, Chemistry: The Central Science, touching on material related to the dynamic equilibrium that leads to vapor pressure over a liquid.
Section 11.4 - Phase Changes
Просмотров 692 часа назад
This lecture accompanies my Chem 1210 course at Ohio State University. This lecture is over material from Section 11.4 of our textbook, Chemistry the Central Science, covering the names and energy changes associated with various phase transitions.
Section 11.2 - Intermolecular Forces
Просмотров 679 часов назад
This video is intended to accompany my Chem 1210 course at Ohio State University. The content covers section 11.2 - Intermolecular Forces.
Section 11.3 - Viscosity, Surface Tension, and Capillary Action
Просмотров 739 часов назад
This lecture was created to accompany my Chem 1210 course at Ohio State University. It covers material in section 11.3 - Select Properties of Liquids, including a description of viscosity, surface tension and capillary action.
Section 11.1 - A Comparison of Gases, Liquids and Solids
Просмотров 599 часов назад
This is one of a series of lectures that accompany my Chemistry 1210 course at Ohio State University. This lecture takes a look at the similarities and differences between gases, liquids and solids.
Lecture 20 - Valence Bond Theory
Просмотров 37321 день назад
This channel is devoted to the chemistry and physics of solid state materials. Topics include solid state chemistry, materials chemistry, crystallography and X-ray diffraction methods.
Holiday Game Beerspan Rules Explained
Просмотров 66611 месяцев назад
This video differs from all of the other content on this channel. It is not an educational video on chemistry or diffraction, rather it is an explanation of the rules to the game we play at the annual research group holiday party.
Diffraction Lecture 26: A Practical Guide to Rietveld Refinements
Просмотров 12 тыс.2 года назад
We continue our discussion of Rietveld refinements with more details and a practical guide to guide you through a successful Rietveld refinement.
Diffraction Lecture 25: Rietveld Refinements
Просмотров 18 тыс.2 года назад
The Rietveld method is used to refine the structures of crystals from powder diffraction data. Unlike single crystal methods, where the crystal structure is determined from structure factors extracted from a diffraction experiment, in the Rietveld method the entire powder diffraction pattern is fit. In this lecture we examine the general principles of the Rietveld method.
Diffraction Lecture 24: Structure Factors Part 2
Просмотров 4,6 тыс.2 года назад
In the second half of this lecture on structure factors we explore the reasons behind the systematic absences associated with screw axes and glide planes, and see how the structure factors for centrosymmetric and noncentrosymmetric space groups differ. The latter part of the lecture covers Friedel's Law and Laue Groups.
Diffraction Lecture 23 - Structure Factors Part 1
Просмотров 10 тыс.2 года назад
The structure factor F(hkl) arises from interference effects between X-rays scattered off of different atoms in the unit cell. All of the information about where the atoms are located in the unit cell is contained in the structure factor. In this lecture we look at the origins of the structure factor and see how they are calculated. We finish with some illustrative examples.
Diffraction Lecture 22: X-ray Absorption Effects
Просмотров 2,7 тыс.2 года назад
As X-rays pass through a sample they are absorbed and this affects the intensities of various diffraction peaks. In this lecture we learn how to calculate the linear absorption coefficient for any substance from it's composition, density and the wavelength of the X-rays. Then we consider how to use this information when designing experiments and analyzing diffraction data.
Diffraction Lecture 21: Peak Intensities
Просмотров 6 тыс.2 года назад
This is the first of several lectures that examine the factors that determine the intensities of diffraction peaks. Here we focus is mainly on effects other than the structure factor, including the polarization and Lorentz factors, multiplicities, and absorption effects.
Diffraction Lecture 20: Reflection Conditions
Просмотров 4,5 тыс.2 года назад
In this lecture we see that for most space groups certain classes of diffraction peaks are systematically absent. Those peaks that are allowed are are said to follow specific reflection conditions. For example in a body centered space group only the reflection indices (hkl) where h k l is an even number are seen. We can use this information to dramatically narrow down the choice of space group.
Diffraction Lecture 19: Autoindexing Powder Diffraction Patterns
Просмотров 5 тыс.2 года назад
Diffraction Lecture 19: Autoindexing Powder Diffraction Patterns
Diffraction Lecture 18: Indexing Tetragonal and Hexagonal Patterns
Просмотров 17 тыс.2 года назад
Diffraction Lecture 18: Indexing Tetragonal and Hexagonal Patterns
Diffraction Lecture 17: Indexing Diffraction Patterns of Cubic Crystals
Просмотров 33 тыс.2 года назад
Diffraction Lecture 17: Indexing Diffraction Patterns of Cubic Crystals
Diffraction Lecture 16: Lattice Planes and Interplanar Spacing
Просмотров 9 тыс.2 года назад
Diffraction Lecture 16: Lattice Planes and Interplanar Spacing
Diffraction Lecture 15: Reciprocal Space
Просмотров 23 тыс.2 года назад
Diffraction Lecture 15: Reciprocal Space
Diffraction Lecture 14: Scattering in Two and Three Dimensions
Просмотров 7 тыс.2 года назад
Diffraction Lecture 14: Scattering in Two and Three Dimensions
Diffraction Lecture 13: Bragg's Law and Laue's Equations
Просмотров 20 тыс.2 года назад
Diffraction Lecture 13: Bragg's Law and Laue's Equations
Diffraction Lecture 12: Elastic Scattering of X-rays
Просмотров 6 тыс.2 года назад
Diffraction Lecture 12: Elastic Scattering of X-rays
Diffraction Lecture 11: Crystallographic Symmetry and Physical Properties
Просмотров 2,9 тыс.2 года назад
Diffraction Lecture 11: Crystallographic Symmetry and Physical Properties
Diffraction Lecture 10: Space Group Symmetry and the Structures of Molecular Crystals
Просмотров 2,6 тыс.2 года назад
Diffraction Lecture 10: Space Group Symmetry and the Structures of Molecular Crystals
Diffraction Lecture 9: Space Groups and the Structures of Metallic and Ionic Crystals
Просмотров 2,2 тыс.2 года назад
Diffraction Lecture 9: Space Groups and the Structures of Metallic and Ionic Crystals
Diffraction Lecture 8: Space Group Symmetry Part 2
Просмотров 5 тыс.2 года назад
Diffraction Lecture 8: Space Group Symmetry Part 2
Diffraction Lecture 7: Space Group Symmetry Part 1
Просмотров 7 тыс.2 года назад
Diffraction Lecture 7: Space Group Symmetry Part 1
Diffraction Lecture 6: 2D Plane Group Symmetry
Просмотров 12 тыс.2 года назад
Diffraction Lecture 6: 2D Plane Group Symmetry
Diffraction Lecture 5: Point Groups
Просмотров 12 тыс.2 года назад
Diffraction Lecture 5: Point Groups
I was fortunate to listen to your lecture at GRC 2024; it was the last lecture of the conference, if I remember correctly. After coming back, I found your channel. All the lectures are extremely useful for anyone who is in touch with solid-state chemistry. It is like a thriller series. I hope to get more content in the future.
Hi.... I have a little queation. Why the square and rectangular lattices are not identified as non premivite one? (16.20) Kindly explain.
This is really an excellent series of video! Is there any pdf that we can download so that we can refer back in the future, your slides are excellent!
Thank you very much for this awesome lecture, it was a great help. I will surely come back and rewatch certain parts in the future.
You the goat fr
I’m touching myself to this
#enjoyingmyself
Wow so cool
Great work !!
Great video, thank you so much Pat!!
VERY VALUABLE AND USEFUL PRESENTATION
Really good study video!3q
命哈哈哈哈哈哈哈
Would love to see if start a series on crystal defects in detail
Thanks for the very explicit explanation!
Thanks for the video. Really helped with the understanding of structure factors.
命。。。
Great
Thank you, finally I see more where these come from 🙏 My teaching materials just kind of skipped the geometry lol
is there a wrong about position of the a* and b* in 11:07?
Yes. a star is switched with b star
Thx ❤
Thank you for the video
Dear Professor Woodward Thank you for the inspiring lectures! The example of the F atom chain is very beneficial to my understanding. I wonder whether you have some recommendation references on one-dimensional band structures like this. Thanks!
Could i have the articles
Please where this book
Best lecture Thanks sir!
Thank you sir for these highly structured and instructive lectures. Everything is perfect, especially the voice, and the way you present the lectures is fantastic and allows us to understand the phenomena studied from other angles. I'd like to ask you a question about lecture 12 in this first series of lectures (the lecture that precedes this lecture 13). I don't know whether you've forgotten to include it or whether there's just been a mistake in numbering. Thank you.
Even though English ist not my first language, I understood him better than my lecture in german(first language) so wow it’s very well explained👏👏
My Master's degree Tuitor..📝🤭..I will graduate in this school one day🇰🇪
Very well explained, a hundred thanks!
Thank you very much sir!
24:09 why (h^2+k^2+l^2)=(1/d^2)/0.0567 ? Can you please explain how we made that conclusion, please?
Dear Professor, I have a simple question: Kroneker's delta is defined based on the cubic lattice?
Super valuable for my PhD now. Thanks so much
What are you studying?
Thank you! There is something I didn't really get a grasp on though. What exactly is K in the K/a and where do we find it's value?
very clear . thank you so much
thanks!
Excellent and clear explanation, thank you
Amazing content, made things clearer, thanks a lot
Good lecture
thank you sir
501th like
Thanks for ur explicit explanation! great help; a supplement about that calculation of corundum:physics.nist.gov/PhysRefData/XrayMassCoef/tab3.html; I believe the website had moved to this one, and you need another website to seach for the energy: physics.nist.gov/PhysRefData/XrayTrans/Html/search.html
Makes you really think about the power of a metallic spacecraft skin that could take advantage of Jahn Teller Effects in combinatorial with Hall effects.
Thanks a lot. One of the best lectures I have seen in RUclips❤
Thank you very much, Can you do one for graphite?
nice explanation! Could you please explain highest occupied valance band and lowest unoccupied conduction band?
Thank you for this wonderfully clear introduction! Greetings from Cape Town!
What is the value of 'V' ?
Can you please share the pdf if possible ?