speromagneticadj.

/ˌspɪərəmaɡˈnɛtɪk/

Etymology: < Greek δια-σπείρειν to scatter + -omagnetic (in antiferromagnetic adj.)

Physics.

Applied to an amorphous magnetic material in which the individual electron spins are aligned more or less anti-parallel to their closest neighbours but overall there is a statistical distribution of orientations with no preferred direction.The form sperimagnetic occurred throughout the 1973 coinage paper. This was corrected by Coey et al. in Physical Rev. Lett. (1976) XXXVI. 1062.

ΘΚΠ

the world > matter > physics > quantum theory > electron spin > magnetism attributed to electron spin > [adjective]

ferromagnetic1896

antiferromagnetic1936

ferrimagnetic1951

speromagnetic1973

paramagnetic1994

the world > matter > physics > electromagnetic radiation > magnetism > types of magnetism > [adjective] > relating to other forms of magnetism

thermo-magnetic1823

diamagnetic1846

biomagnetic1860

piezomagnetic1901

pyromagnetic1901

speromagnetic1973

1973 Coey & Readman in Nature 21–8 Dec. 477/2 Such a configuration, with the spins fixed relative to each other but possessing no overall preferred direction, is illustrated in Fig. 2c. It is termed ‘sperimagnetic’ [sic]..and..is probably a fairly common phenomenon in amorphous compounds.

1976 Physics Bull. July 294/3 Speromagnetic ordering may also result when the exchange is distributed about zero with a range of positive and negative values.

Derivatives

speroˈmagnetism n.

ΘΚΠ

the world > matter > physics > quantum theory > electron spin > magnetism attributed to electron spin > [noun]

paramagnetism1845

diamagnetism1850

ferromagnetism1930

ferrimagnetism1948

speromagnetism1973

the world > matter > physics > electromagnetic radiation > magnetism > types of magnetism > [noun] > other types

permanent magnetism1782

thermo-magnetism1828

diamagnetism1850

photomagnetism1864

piezomagnetism1901

pyromagnetism1901

biomagnetism1963

speromagnetism1973

1973 Nature 21 Dec. 445/2 The new phenomenon of speromagnetism (or amorphous superparamagnetism) adds a further delectable layer of complexity to what is already a highly elaborate network of phenomena.

1976 Physical Rev. Lett. 36 1062/1 Speromagnetism may also occur where the anisotropy dominates the exchange, in pure amorphous rare-earth metals, for example.

This entry has not yet been fully updated (first published 1986; most recently modified version published online June 2018).

单词	speromagnetic
释义	speromagneticadj. /ˌspɪərəmaɡˈnɛtɪk/ Etymology: < Greek δια-σπείρειν to scatter + -omagnetic (in antiferromagnetic adj.) Physics. Applied to an amorphous magnetic material in which the individual electron spins are aligned more or less anti-parallel to their closest neighbours but overall there is a statistical distribution of orientations with no preferred direction.The form sperimagnetic occurred throughout the 1973 coinage paper. This was corrected by Coey et al. in Physical Rev. Lett. (1976) XXXVI. 1062. ΘΚΠ the world > matter > physics > quantum theory > electron spin > magnetism attributed to electron spin > [adjective] ferromagnetic1896 antiferromagnetic1936 ferrimagnetic1951 speromagnetic1973 paramagnetic1994 the world > matter > physics > electromagnetic radiation > magnetism > types of magnetism > [adjective] > relating to other forms of magnetism thermo-magnetic1823 diamagnetic1846 biomagnetic1860 piezomagnetic1901 pyromagnetic1901 speromagnetic1973 1973 Coey & Readman in Nature 21–8 Dec. 477/2 Such a configuration, with the spins fixed relative to each other but possessing no overall preferred direction, is illustrated in Fig. 2c. It is termed ‘sperimagnetic’ [sic]..and..is probably a fairly common phenomenon in amorphous compounds. 1976 Physics Bull. July 294/3 Speromagnetic ordering may also result when the exchange is distributed about zero with a range of positive and negative values. Derivatives speroˈmagnetism n. ΘΚΠ the world > matter > physics > quantum theory > electron spin > magnetism attributed to electron spin > [noun] paramagnetism1845 diamagnetism1850 ferromagnetism1930 ferrimagnetism1948 speromagnetism1973 the world > matter > physics > electromagnetic radiation > magnetism > types of magnetism > [noun] > other types permanent magnetism1782 thermo-magnetism1828 diamagnetism1850 photomagnetism1864 piezomagnetism1901 pyromagnetism1901 biomagnetism1963 speromagnetism1973 1973 Nature 21 Dec. 445/2 The new phenomenon of speromagnetism (or amorphous superparamagnetism) adds a further delectable layer of complexity to what is already a highly elaborate network of phenomena. 1976 Physical Rev. Lett. 36 1062/1 Speromagnetism may also occur where the anisotropy dominates the exchange, in pure amorphous rare-earth metals, for example. This entry has not yet been fully updated (first published 1986; most recently modified version published online June 2018). < adj.1973
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