Debye temperature
E518989
The Debye temperature is a characteristic temperature of a crystalline solid that reflects the highest vibrational mode of its lattice and strongly influences its heat capacity and thermal properties.
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
material property
ⓘ
solid-state physics concept ⓘ thermodynamic quantity ⓘ |
| appearsIn | Debye T^3 law for heat capacity NERFINISHED ⓘ |
| characterizes |
cutoff frequency of phonon spectrum
ⓘ
highest vibrational mode of a crystal lattice ⓘ |
| definedVia |
Boltzmann constant
NERFINISHED
ⓘ
Planck constant NERFINISHED ⓘ maximum phonon frequency ⓘ speed of sound in the crystal ⓘ |
| dependsOn |
atomic mass of the constituent atoms
ⓘ
crystal structure ⓘ interatomic force constants ⓘ sound velocity in the material ⓘ |
| describes | vibrational properties of a crystal lattice ⓘ |
| greaterThan | typical operating temperatures for many solids ⓘ |
| hasPhysicalDimension | temperature ⓘ |
| helpsDetermine | quantum versus classical behavior of lattice vibrations ⓘ |
| higherValueIndicates |
higher characteristic phonon frequencies
ⓘ
stiffer lattice ⓘ |
| highTemperatureLimitImplies | Dulong–Petit law behavior of heat capacity ⓘ |
| influences |
elastic properties of solids
ⓘ
low-temperature heat capacity ⓘ speed of sound in a solid ⓘ thermal conductivity ⓘ |
| isCutoffFor |
phonon frequencies in Debye model
ⓘ
phonon wave vectors in Debye model ⓘ |
| isTypicallyHighFor | covalent solids ⓘ |
| isTypicallyLowFor | heavy-atom solids ⓘ |
| lowTemperatureLimitImplies | heat capacity proportional to T^3 ⓘ |
| measuredIn | kelvin ⓘ |
| namedAfter | Peter Debye NERFINISHED ⓘ |
| relatedTo | Einstein temperature ⓘ |
| relatesTo |
Debye model
NERFINISHED
ⓘ
heat capacity of solids ⓘ lattice vibrations ⓘ phonons ⓘ thermal properties of solids ⓘ |
| symbol | Θ_D ⓘ |
| usedIn |
Debye heat capacity formula
NERFINISHED
ⓘ
analysis of specific heat at low temperatures ⓘ characterization of crystalline solids ⓘ low-temperature physics ⓘ materials science ⓘ solid-state physics NERFINISHED ⓘ |
| variesBetweenMaterials |
insulators
ⓘ
metals ⓘ semiconductors ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.