ISQ
21 / 60
12-12

density of vibrational states

URNurn:iso:std:iso:80000:-12:ed-2:en:item:12-12
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urn:iso:std:iso:80000:-12:ed-2:en:item:12-12
ISQ Identifiers
ISO
urn:iso:std:iso:80000:-12:ed-2:en:item:12-12
IEC
urn:iec:std:iec:80000-12:2019:::item:12-12
Designations
ENdensity of vibrational states
FRconcentration spectrale des modes de vibration
FRdensité des modes
Symbol
g
Notation systems
Rendered
g
AsciiMath
g
LaTeX
g

Definition

EN

quotient of the number of vibrational modes in an infinitesimal interval of angular frequency (ISO 80000-3: Space and time), and the product of the width of that interval and volume (ISO 80000-3: Space and time)

FR

quotient du nombre de modes de vibration dans un intervalle infinitésimal de pulsation (ISO 80000-3: Space and time), par le produit de la largeur de cet intervalle et du volume (ISO 80000-3: Space and time)

Notes

EN
g ( ω ) = n ω = d n ( ω ) d ω

where n ( ω ) is the total number of vibrational modes per volume with angular frequency less than ω .

The density of states may also be normalized in other ways instead of with respect to volume.

See also energy density of states.

FR
g ( ω ) = n ω = d n ( ω ) d ω

où n ( ω ) est le nombre total de modes de vibration par volume de pulsation inférieure à ω .

La concentration spectrale des modes de vibration peut également être normée d'une autre manière que par rapport au volume.

Voir également energy density of states.

Concept HierarchyPendrill (2024)
L⁻³ TL⁻³ T quantitiesLevel 0 · Kind

Broader concepts

Ontology

Class Hierarchy

A physical quantity as defined in ISO/IEC 80000, with associated symbols, definitions, and units of measurement.

Instance IRI

isq:t12-12
PropertyValue
rdf:type
dcterms:identifier
12-12
skosxl:prefLabel
"density of vibrational states <angular frequency>"@en
skosxl:altLabel
"g"@en
skos:definition
quotient of the number of vibrational modes in an infinitesimal interval of angular frequency (<<iso80000-3>>), and the …
skos:note
[stem%unnumbered] ++++ g(omega) = n_omega = ("d"n(omega))/("d"omega) ++++ where stem:[n(omega)] is the total number of …
isq:hasUnit
isq:hasDimension
smart:hasBindingnessType
dcterms:isPartOf