Diffuse Scattering - Spallation Neutron Source - Oak Ridge National ...

More documents

Recommendations

Info

$Powder Diffraction - Spallation Neutron Source$

$Single Crystal Diffraction - Spallation Neutron Source$

Inelastic neutron/x-ray scattering directly measures phonon spectra in symmetry directions • Inelastic neutron scattering confirms origins of negative Grüneisen coefficient in cubic ZrW 2O 8 (negative thermal expansion)disordering phase transition. • Unusual thermal displacements often associated with phase transitions. Phonon energies similar to meV neutron energies.
Extra diffuse scattering often observed from materials near phase transitions • Distribution of configurations at finite temperature – Mixed phases (1st order) • Extended displacements • High-pressure – higher-co-ordination – Longer NN bond distance – Smaller volume/atom I ae -E/kT
Page 1 and 2: Diffuse Scattering • Anticipatory
Page 3 and 4: Presentation concentrates year grad
Page 5 and 6: What you already know- arrangement
Page 7 and 8: If crystal lattice of atoms leads t
Page 9 and 10: You already know length scales are
Page 11 and 12: Who the heck was Krivoglaz? • Bri
Page 13 and 14: Single crystals and surfaces -trunc
Page 15 and 16: A little math helps for party conve
Page 17: X-rays scattering measurements infe
Page 21 and 22: Complete transformation induced by
Page 23 and 24: Neutrons uniquely sensitive to low
Page 25 and 26: Alloys can have another type 1 defe
Page 27 and 28: Neutron/ X-rays Complimentary For S
Page 29 and 30: X-ray anomalous scattering can chan
Page 31 and 32: Measurement and theory of atomic si
Page 33 and 34: High-energy x-ray measurements revo
Page 35 and 36: Dislocations -Krivoglaz defect of t
Page 37 and 38: Intense microbeams/area detectors p
Page 39 and 40: Diffuse microdiffraction holds prom
Page 41 and 42: Numerical calculations determine qu
Page 43 and 44: X-ray Diffuse Scattering Huang theo
Page 45 and 46: Corelli SNS beamline specialized fo
Page 47 and 48: New directions in diffuse scatterin
Page 49 and 50: A. Gunier Diffuse scattering done b

Diffuse Scattering - Spallation Neutron Source - Oak Ridge National ...

Create successful ePaper yourself

Delete template?

Save as template?