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单词 magnon
释义

magnonn.

Brit. /ˈmaɡnɒn/, U.S. /ˈmæɡˌnɑn/
Origin: Formed within English, by derivation. Etymons: magnetic adj., magnetism n., -on suffix1.
Etymology: < magn- (in magnetic adj. or magnetism n.) + -on suffix1 (see quot. 1941).
Physics.
The quantum or quasiparticle associated with a spin wave in a magnetic material.
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the world > matter > physics > quantum theory > [noun] > quasiparticle > types of > associated with waves
phonon1932
magnon1941
phason1971
1941 Jrnl. Physics (Moscow) 4 358/1 Such magnetic excitations will be called..‘magnons’ (this name was suggested by L. Landau).
1971 Nature 18 June 424/2 Light scattering research has been revolutionized by the introduction of the laser... Scattering from magnons or spin waves has furthered understanding of antiferromagnetic materials and their phase transitions.
1973 Sci. Amer. Jan. 91/1 Phonons and magnons are typical examples of quasiparticles that are bosons.
1989 Encycl. Brit. VII. 688/2 As the temperature of a magnetic substance is increased, its magnetic strength decreases, corresponding to the presence of a large number of magnons.
This entry has been updated (OED Third Edition, March 2000; most recently modified version published online March 2022).
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n.1941
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