ferromagneticadj.n.

Brit.

/ˌfɛrə(ʊ)maɡˈnɛtɪk/, U.S.

/ˌfɛroʊˌmæɡˈnɛdɪk/

Origin: Formed within English, by compounding. Etymons: ferro- comb. form, magnetic adj.

Etymology: < ferro- comb. form + magnetic adj. Compare diamagnetic adj., diamagnetic n., and slightly earlier paramagnetic adj., paramagnetic n.In sense A. 2 after German ferromagnetisch (1894 (in the source translated in quot. 1896 at sense A. 2) or earlier in this sense); compare also French ferromagnétique (1895 or earlier in this sense (see note at definition); 1883 in sense A. 1, probably < English). With the use as noun compare earlier magnetic n.

Physics.

A. adj.

†1. Attracted by the poles of a magnet; having a positive magnetic susceptibility; = paramagnetic adj. 1. Contrasted with diamagnetic adj. 1. Obsolete.

ΘΚΠ

the world > matter > physics > electromagnetic radiation > magnetism > types of magnetism > [adjective] > having positive magnetic susceptibility

paramagnetic1845

ferromagnetic1846

1846 M. Faraday in London, Edinb., & Dublin Philos. Mag. 29 153 (title) On the magnetic affection of light, and on the distinction between the ferromagnetic and diamagnetic conditions of matter.

1850 W. Thomson in London, Edinb. & Dublin Philos. Mag. 3rd Ser. 37 250 It appears to me very probable that this assumption is correct for all known diamagnetic substances, and for homogeneous feebly ferromagnetic substances.

1881 J. C. Maxwell Treat. Electr. & Magnetism (ed. 2) II. 46 When the magnetization is in the same direction as the magnetic force..the substance is called Paramagnetic, Ferromagnetic, or more simply Magnetic.

1886 Philos. Trans. 1885 (Royal Soc.) 176 468 Most bodies are either very slightly ferro-magnetic or very slightly diamagnetic. On the other hand iron, nickel, and cobalt are enormously magnetic.

2. Of an object or substance: that has a high susceptibility to magnetization, the strength of which depends on that of the applied magnetizing field, and that exhibits hysteresis. Also: characteristic of or relating to such substances or their behaviour. Contrasted with paramagnetic adj. 2.This is the kind of magnetic property displayed by iron, and arises from the parallel magnetic alignment of unpaired electrons on neighbouring atoms.The distinction between ferromagnetic and paramagnetic substances was first emphasized by P. Curie 1895 ( Ann. de chim. et de phys. 7me Sér. 5 289).

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 or exhibiting ferromagnetism

ferromagnetic1896

1896 E. Atkinson tr. H. du Bois Magn. Circuit i. 9 By many authors the terms ‘ferromagnetic’ [Ger. ferromagnetisch] and ‘paramagnetic’ are used pretty indiscriminately. For the present it may be as well to keep the two groups separate.

1902 Encycl. Brit. XXX. 430/2 The magnetic susceptibility of a vacuum..is 0, that of a diamagnetic substance..has a negative value, while the susceptibility of paramagnetic and ferromagnetic substances..is positive.

1929 W. Peddie Molec. Magn. iv. 57 Ferromagnetic substances become paramagnetic at sufficiently high temperature.

1935 Physical Rev. 47 180 The dielectric properties of Rochelle salt..are analogous to the ferromagnetic properties near the Curie point.

1965 A. H. Morrish Physical Princ. Magn. i. 4 If the atomic moments are aligned parallel, the substance is said to be ferromagnetic.

1978 Solid State Communications 27 713 (heading) Ferromagnetic resonance in strained and strain-free single crystal nickel films.

2012 Cambr. First (Nexis) 22 Mar. Ferromagnetic material is sprayed or tattooed onto the skin and then paired with a mobile device.

B. n.

A ferromagnetic substance or object.

ΘΚΠ

the world > matter > physics > electromagnetic radiation > magnetism > types of magnetism > [noun] > ferromagnetism > body or substance

ferromagnetic1850

ferromagnet1887

ferrospinel1950

the world > matter > physics > electromagnetic radiation > magnetism > types of magnetism > [noun] > ferromagnetism > equated with paramagnetism > body or substance

paramagnetic1845

ferromagnetic1962

1850 London, Edinb., & Dublin Philos. Mag. 3rd Ser. 37 253 A small ball of this body would, when acted upon by a feeble magnetizing force, become on the whole magnetized like a ferromagnetic, and would be urged from places of weaker towards places of stronger force.

1890 London, Edinb., & Dublin Philos. Mag. 5th Ser. 30 336 Poisson's old theory of magnetic induction..applies to all substances except ‘ferromagnetics’ (iron, cobalt, nickel, magnetite).

1948 Physics Abstr. 51 336/1 In some cases (ferrimagnetism) the substance behaves at a low temperature like a ferromagnetic.

1962 Times 12 Oct. 2/6 Studies of paramagnetics and ferromagnetics.

2013 Jrnl. Magnetism & Magn. Materials 327 175/1 In addition to ferromagnetics, it is possible to use other magnetoactive materials to investigate distortion of the pattern of magnetic lines.

Derivatives

ˌferromagˈnetically adv. in a way that is characteristic of a ferromagnetic substance; by means of ferromagnetism.

ΚΠ

1939 Brit. Patent 468,784 4/1 Tuning is obtained by movement of a portion of the core of a ferromagnetically cored inductance or inductances.

1975 C. T. Horovitz Scandium viii. 184 EuSc₂S₄ orders ferromagnetically at 13°K.

2007 Condensed Matter Theories 21 98 Depending on the thickness of the spacer the two layers can be ferromagnetically or antiferromagnetically coupled.

This entry has been updated (OED Third Edition, June 2014; most recently modified version published online March 2022).

单词	ferromagnetic
释义	ferromagneticadj.n. Brit. /ˌfɛrə(ʊ)maɡˈnɛtɪk/, U.S. /ˌfɛroʊˌmæɡˈnɛdɪk/ Origin: Formed within English, by compounding. Etymons: ferro- comb. form, magnetic adj. Etymology: < ferro- comb. form + magnetic adj. Compare diamagnetic adj., diamagnetic n., and slightly earlier paramagnetic adj., paramagnetic n.In sense A. 2 after German ferromagnetisch (1894 (in the source translated in quot. 1896 at sense A. 2) or earlier in this sense); compare also French ferromagnétique (1895 or earlier in this sense (see note at definition); 1883 in sense A. 1, probably < English). With the use as noun compare earlier magnetic n. Physics. A. adj. †1. Attracted by the poles of a magnet; having a positive magnetic susceptibility; = paramagnetic adj. 1. Contrasted with diamagnetic adj. 1. Obsolete. ΘΚΠ the world > matter > physics > electromagnetic radiation > magnetism > types of magnetism > [adjective] > having positive magnetic susceptibility paramagnetic1845 ferromagnetic1846 1846 M. Faraday in London, Edinb., & Dublin Philos. Mag. 29 153 (title) On the magnetic affection of light, and on the distinction between the ferromagnetic and diamagnetic conditions of matter. 1850 W. Thomson in London, Edinb. & Dublin Philos. Mag. 3rd Ser. 37 250 It appears to me very probable that this assumption is correct for all known diamagnetic substances, and for homogeneous feebly ferromagnetic substances. 1881 J. C. Maxwell Treat. Electr. & Magnetism (ed. 2) II. 46 When the magnetization is in the same direction as the magnetic force..the substance is called Paramagnetic, Ferromagnetic, or more simply Magnetic. 1886 Philos. Trans. 1885 (Royal Soc.) 176 468 Most bodies are either very slightly ferro-magnetic or very slightly diamagnetic. On the other hand iron, nickel, and cobalt are enormously magnetic. 2. Of an object or substance: that has a high susceptibility to magnetization, the strength of which depends on that of the applied magnetizing field, and that exhibits hysteresis. Also: characteristic of or relating to such substances or their behaviour. Contrasted with paramagnetic adj. 2.This is the kind of magnetic property displayed by iron, and arises from the parallel magnetic alignment of unpaired electrons on neighbouring atoms.The distinction between ferromagnetic and paramagnetic substances was first emphasized by P. Curie 1895 ( Ann. de chim. et de phys. 7me Sér. 5 289). 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 or exhibiting ferromagnetism ferromagnetic1896 1896 E. Atkinson tr. H. du Bois Magn. Circuit i. 9 By many authors the terms ‘ferromagnetic’ [Ger. ferromagnetisch] and ‘paramagnetic’ are used pretty indiscriminately. For the present it may be as well to keep the two groups separate. 1902 Encycl. Brit. XXX. 430/2 The magnetic susceptibility of a vacuum..is 0, that of a diamagnetic substance..has a negative value, while the susceptibility of paramagnetic and ferromagnetic substances..is positive. 1929 W. Peddie Molec. Magn. iv. 57 Ferromagnetic substances become paramagnetic at sufficiently high temperature. 1935 Physical Rev. 47 180 The dielectric properties of Rochelle salt..are analogous to the ferromagnetic properties near the Curie point. 1965 A. H. Morrish Physical Princ. Magn. i. 4 If the atomic moments are aligned parallel, the substance is said to be ferromagnetic. 1978 Solid State Communications 27 713 (heading) Ferromagnetic resonance in strained and strain-free single crystal nickel films. 2012 Cambr. First (Nexis) 22 Mar. Ferromagnetic material is sprayed or tattooed onto the skin and then paired with a mobile device. B. n. A ferromagnetic substance or object. ΘΚΠ the world > matter > physics > electromagnetic radiation > magnetism > types of magnetism > [noun] > ferromagnetism > body or substance ferromagnetic1850 ferromagnet1887 ferrospinel1950 the world > matter > physics > electromagnetic radiation > magnetism > types of magnetism > [noun] > ferromagnetism > equated with paramagnetism > body or substance paramagnetic1845 ferromagnetic1962 1850 London, Edinb., & Dublin Philos. Mag. 3rd Ser. 37 253 A small ball of this body would, when acted upon by a feeble magnetizing force, become on the whole magnetized like a ferromagnetic, and would be urged from places of weaker towards places of stronger force. 1890 London, Edinb., & Dublin Philos. Mag. 5th Ser. 30 336 Poisson's old theory of magnetic induction..applies to all substances except ‘ferromagnetics’ (iron, cobalt, nickel, magnetite). 1948 Physics Abstr. 51 336/1 In some cases (ferrimagnetism) the substance behaves at a low temperature like a ferromagnetic. 1962 Times 12 Oct. 2/6 Studies of paramagnetics and ferromagnetics. 2013 Jrnl. Magnetism & Magn. Materials 327 175/1 In addition to ferromagnetics, it is possible to use other magnetoactive materials to investigate distortion of the pattern of magnetic lines. Derivatives ˌferromagˈnetically adv. in a way that is characteristic of a ferromagnetic substance; by means of ferromagnetism. ΚΠ 1939 Brit. Patent 468,784 4/1 Tuning is obtained by movement of a portion of the core of a ferromagnetically cored inductance or inductances. 1975 C. T. Horovitz Scandium viii. 184 EuSc₂S₄ orders ferromagnetically at 13°K. 2007 Condensed Matter Theories 21 98 Depending on the thickness of the spacer the two layers can be ferromagnetically or antiferromagnetically coupled. This entry has been updated (OED Third Edition, June 2014; most recently modified version published online March 2022). < adj.n.1846
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