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Praseodymium Dioxide

Crystal: PrO2

Structure: cubic

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Cohesive energy:

eV

Lattice parameter:

Å

Density:

g/cm3

Stiffness constants: in 1011 dynes/cm2, at room temperature

 

c11:

c12:

c44:

Compressibility (in 1011 dynes/cm2):

Poisson ratio:

 

Debye temperature: K

Melting temperature: ° C

Neel temperature: K

 

Phonon spectrum discussed by:

 

Transverse optic phonon T0 (k=0): cm-1

Longitude optic phonon L0 (k=0): cm-1

 

Gruneissen constant:

Ratio e*/e:

 

Photoelastic constants:

p11:

p12:

p44:

 

 

Band gap:

direct: eV.

indirect: eV.

 

Gap: eV.

First exciton: eV.

 

Band structure discussed by:

 

Static dielectric constant: 13.2 (1kHz., 25-180°C, film³ 1000 Å, Ref.1)

Optic dielectric constant:

 

Electron mobility:

Hole mobility:

Polaron coupling constant: a = ( for m*=1 )

 

Effective mass:

conduction band:

valence band:

 

Electron affinity: ( in eV., from bottom of conduction band under vacuum)

 

Spin-orbit coupling: ( valence band)

 

Cation polarisation: Å-3

Anion polarisation: Å-3

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References:

 

1. Nath, K.L. Chopra, Thermal conductivity of Copper films, Thin Sol. Films 20, 53 (1974)

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