Single Crystal Diffraction With X-ray (and Neutrons)
Single crystal diffraction with x-ray (and neutrons)Dinnebier Pre9
X-ray hitting condensed matterBragg equation:kfQhkl2θkiLaue equation: Qhkl kf - kiDinnebier Pre6
Laue pattern for crystal orientation and symmetryFilm inback scatteringgeometryFilm inforward scatteringgeometrySamplePolychromaticx-ray beamEckold 12
Laue pattern for crystal orientation and symmetryFilm inback scatteringgeometryFilm inforward scatteringgeometryLaue back1; Laue front2
Laue pattern for crystal orientation and symmetryIMG 0332a
Laue pattern for crystal orientation and symmetrytwofold rotation axis 2 mirror planesLaue2mirrors
Laue pattern for crystal orientation and symmetryfourfold rotation axis 4 mirror planesLaueSmVO3
Laue pattern for crystal orientation and symmetrysixfold rotation axis 6 mirror planesLaueHoMnO3
Laue pattern for crystal orientation and symmetryYour home work.LaueQuiz
Single crystal diffractometer (four circle geometry)kfQhkl2θkiLaue equation: Qhkl kf - kiLifshin 31 1
Single crystal diffractometer (four circle geometry)QhklkfkiLaue equation: Qhkl kf - kiLifshin 31 2
Single crystal diffractometer (four circle geometry)IMG 0311a; 000 0026a
Single crystal diffractometer (four circle geometry)3500Ba(Fe0.938Co0.062)2As2(1 1 10)3000Intensity (counts/s)2500T 38 K200028 K150022 K100018.5 K5008.3 K00.9981.0001.002ξ in (ξ ξ 10)BaFeCo2As2-Distortion/1110 raw; WS658-A-1-laue a
Tetragonal-orthorhombic distortion studied by diffractionBaFeCo2As2-Distortion/1110 raw; AFe2As2-Domains/TwinDomains2b Talk
Tetragonal-orthorhombic distortion studied by diffractionBaFeCo2As2-Distortion/1110 raw; AFe2As2-Domains/TwinDomains2b Talk
Tetragonal-orthorhombic distortion studied by 2x 0.0470.0540.0570.0590.0620.0630.066(1 1 10)3000250015Intensity (counts/s)-4δ (a-b)/(a b) (10 )T 38 K200028 K150022 K100018.5 K1501.0Ba(Fe1-xCox)2As2100δtheoryT .5 SCT / Ts0.060.081.00.100.12xTN10TN55008.3 K000.9981.000ξ in (ξ ξ 10)1.00201020304050Temperature T (K)6070BaFeCo2As2-Distortion/1110 raw, ortho split, Phase Diagram
Imaging of reciprocal planes by high-energy x-ray diffractiona*ηx-ray beamb* sampledetectorCe2Fe17/IFP06Tb
Imaging of reciprocal planes by high-energy x-ray diffractiona*a*Ewald spherex-ray beamb*Ce2Fe17/IFP06Tb
Imaging of reciprocal planes by high-energy x-ray diffractionRIMG3446a; RIMG5291a
Imaging of reciprocal planes by high-energy x-ray diffractionT 300 KT 10 omains2c Tanatar
Imaging of reciprocal planes by high-energy x-ray diffractionBaFe2As2AFe2As2-Domains/TwinDomains2c Tanatar
Imaging of reciprocal planes by high-energy x-ray diffractionBaFe2As2T 10 K(220)(200)AFe2As2-Domains/TwinDomains2c Tanatar
Surprise in the study of the Sc-Zn phase diagram7000.20650Temperature ( C)6000.15endothermDSC (mW/ mg)Sc-Zn0.100.050.00450475550500525550Temperature ( 51 mm100at%ZnScZn/sczn 1f
012q (Å 000111100111110111111112001211100Intensity (Counts)Surprise in the study of the Sc-Zn phase diagram5ScZn/sczn 1f
Imaging of reciprocal planes by high-energy x-ray diffraction1 mm1 mmSc-ZnScZn/sczn 1f, RIMG7804a, RIMG8438a
32211-1qy (Å )3-1qy (Å )Imaging of reciprocal planes by high-energy x-ray diffraction00-1-1-2-2-3-3-3-2-1012-33-2-1-10123qx (Å-1)qx (Å )101001000Intensity (Counts)10000Sc-ZnScZn/sczn 1f
Single crystal diffraction with x-ray (and neutrons) Dinnebier Pre9. Dinnebier Pre6 X-ray hitting condensed matter Laue equation: Q hkl k f-k i . Imaging of reciprocal planes by high-energy x-ray diffraction Sc-Zn q x (Å )-1
Diffraction of Waves by Crystals crystal structure through the diffraction of photons (X-ray), nuetronsandelectrons. 18 Diffraction X-ray Neutron Electron The general princibles will be the same for each type of waves.
Plane transmission diffraction grating Mercury-lamp Spirit level Theory If a parallel beam of monochromatic light is incident normally on the face of a plane transmission diffraction grating, bright diffraction maxima are observed on the other side of the grating. These diffraction maxima satisfy the grating condition : a b sin n n , (1)
History of Single Crystal Diffraction Safety Concerns in X-ray Diffraction Experiments. -Register to get a badge -Exposure -Regulations -Safety Devices Distribute Homework 1 January 27, L3. Growing Crystals. Mounting, Evaluation Key factors in obtaining good crystals. Read: “Crystal Growing”, Peter G. Jones, Chemistry in Britain, 17 (1981 .
X-Ray Diffraction and Crystal Structure (XRD) X-ray diffraction (XRD) is one of the most important non-destructive tools to analyse all kinds of matter - ranging from fluids, to powders and crystals. From research to production and engineering, XRD is an indispensible method for
A Very Abbreviated Introduction to Powder Diffraction Brian H. Toby . Outline ! Stuff you should know: – Diffraction from single crystals – Some background on crystallography – Where to go for more information ! Why do we use powder diffraction? ! Diffraction from powders
Diffraction from a single slit: Introduction and increasingly difficult problems with some interesting applications Understanding Fraunhofer Diffraction Learning Goal: To understand the derivations of, and be able to use, the equations for Fraunhofer diffraction. Diffraction is a general term for interference effects related to edges or apertures.File Size: 345KBPage Count: 10Explore furtherUniversity of San Diego Home Pageshome.sandiego.eduResolving pixels on a computer screen Physics Forumswww.physicsforums.comOmar Ashour Chapter 15 and 16 Review April 27, 2014nebula.wsimg.comRecommended to you based on what's popular Feedback
We simulate XFEL spectra after diffraction on a bent crystal and show that an energy resolution of 3 10 6,or 0.04 eV for the X-ray energy of 12 keV, can be reached on diffraction on a 20 mm-thick diamond crystal bent to a radius of10 cm.Wealsotakeintoaccountthefree-spacepropagation of the waves diffracted by the bent crystal to the detector
Lecture 9: Introduction to . Diffraction of Light. Lecture aims to explain: 1. Diffraction of waves in everyday life and applications 2. Interference of two one dimensional electromagnetic waves 3. Typical diffraction problems: a slit, a periodic array of slits, circular aperture . 4. Typical approach to solving diffraction problems
