superexchangen.

Brit.

/ˌsuːpərᵻksˈtʃeɪn(d)ʒ/,

/ˌsjuːpərᵻksˈtʃeɪn(d)ʒ/,

/ˌsuːpərɛksˈtʃeɪn(d)ʒ/,

/ˌsjuːpərɛksˈtʃeɪn(d)ʒ/, U.S.

/ˈˌsupərɪksˈtʃeɪndʒ/,

/ˈˌsupərɛksˈtʃeɪndʒ/

Origin: Formed within English, by derivation; modelled on a French lexical item. Etymons: super- prefix, exchange n.

Etymology: < super- prefix + exchange n., after French superéchange (H. A. Kramers 1940, in Magnétisme (Centre Nat. de la Recherche Sci. de France) 3 49).The phenomenon was described earlier by Kramers ( Physica (1934) 1 182), but not under this name.

Physics.

An exchange force that acts between the electrons of two cations through those of an intervening, typically non-magnetic, anion, as in some antiferromagnetic materials. Frequently attributive.

ΘΚΠ

the world > matter > physics > electromagnetic radiation > electricity > electrolysis > [noun] > ion > positive ion > exchange involving

cation exchange1931

superexchange1946

1946 Physica 12 532 Copper potassium sulphate is the only case..where the super-exchange interaction has been shown experimentally to play the preponderant role.

1950 Physical Rev. 79 354/1 This indicates that the superexchange directly through the O⁻⁻ ion may be more powerful than that between locations making angles of 90° with the O⁻⁻ ions.

1967 J. S. Kouvel in J. H. Westbrook Intermetallic Compounds xxvii. 529/2 A remarkable feature of these superexchange interactions in ionic materials is that they almost always give rise to an antiparallel rather than parallel (i.e., ferromagnetic) alignment of moments.

2005 R. E. Newnham Properties of Materials xxxi. 346 Iron atoms in the octahedral and tetrahedral sites are coupled antiferromagnetically by the superexchange mechanism.

This entry has been updated (OED Third Edition, June 2012; most recently modified version published online March 2022).

单词	superexchange
释义	superexchangen. Brit. /ˌsuːpərᵻksˈtʃeɪn(d)ʒ/, /ˌsjuːpərᵻksˈtʃeɪn(d)ʒ/, /ˌsuːpərɛksˈtʃeɪn(d)ʒ/, /ˌsjuːpərɛksˈtʃeɪn(d)ʒ/, U.S. /ˈˌsupərɪksˈtʃeɪndʒ/, /ˈˌsupərɛksˈtʃeɪndʒ/ Origin: Formed within English, by derivation; modelled on a French lexical item. Etymons: super- prefix, exchange n. Etymology: < super- prefix + exchange n., after French superéchange (H. A. Kramers 1940, in Magnétisme (Centre Nat. de la Recherche Sci. de France) 3 49).The phenomenon was described earlier by Kramers ( Physica (1934) 1 182), but not under this name. Physics. An exchange force that acts between the electrons of two cations through those of an intervening, typically non-magnetic, anion, as in some antiferromagnetic materials. Frequently attributive. ΘΚΠ the world > matter > physics > electromagnetic radiation > electricity > electrolysis > [noun] > ion > positive ion > exchange involving cation exchange1931 superexchange1946 1946 Physica 12 532 Copper potassium sulphate is the only case..where the super-exchange interaction has been shown experimentally to play the preponderant role. 1950 Physical Rev. 79 354/1 This indicates that the superexchange directly through the O⁻⁻ ion may be more powerful than that between locations making angles of 90° with the O⁻⁻ ions. 1967 J. S. Kouvel in J. H. Westbrook Intermetallic Compounds xxvii. 529/2 A remarkable feature of these superexchange interactions in ionic materials is that they almost always give rise to an antiparallel rather than parallel (i.e., ferromagnetic) alignment of moments. 2005 R. E. Newnham Properties of Materials xxxi. 346 Iron atoms in the octahedral and tetrahedral sites are coupled antiferromagnetically by the superexchange mechanism. This entry has been updated (OED Third Edition, June 2012; most recently modified version published online March 2022). < n.1946
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