superexchange
/ˌsuːpərɪksˈtʃeɪn(d)ʒ/ /ˌsjuːpərɪksˈtʃeɪn(d)ʒ/ /ˌsuːpərɛksˈtʃeɪn(d)ʒ/Physics
noun
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.
Origin
1940s; earliest use found in Physica. From super- + exchange, after French superéchange.