TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
FERROMAGNET [4 records]
Record 1 - internal organization data 2021-12-06
Record 1, English
Record 1, Subject field(s)
- Physics
- Magnetism and Electromagnetism
- Electronics
Record 1, Main entry term, English
- tunneling magnetoresistance
1, record 1, English, tunneling%20magnetoresistance
correct
Record 1, Abbreviations, English
- TMR 2, record 1, English, TMR
correct
Record 1, Synonyms, English
- tunneling magnetoresistance effect 3, record 1, English, tunneling%20magnetoresistance%20effect
correct
- TMR 4, record 1, English, TMR
correct
- TMR 4, record 1, English, TMR
- TMR effect 5, record 1, English, TMR%20effect
correct
- tunnel magnetoresistance 6, record 1, English, tunnel%20magnetoresistance
correct
- TMR 7, record 1, English, TMR
correct
- TMR 7, record 1, English, TMR
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
Tunnel magnetoresistance(TMR) is a magnetoresistive effect that occurs in a magnetic tunnel junction(MTJ), which is a component consisting of two ferromagnets separated by a thin insulator. If the insulating layer is thin enough(typically a few nanometres), electrons can tunnel from one ferromagnet into the other. 7, record 1, English, - tunneling%20magnetoresistance
Record 1, Key term(s)
- tunneling magneto-resistance
- tunneling magneto-resistance effect
- tunnel magneto-resistance
Record 1, French
Record 1, Domaine(s)
- Physique
- Magnétisme et électromagnétisme
- Électronique
Record 1, Main entry term, French
- magnétorésistance tunnel
1, record 1, French, magn%C3%A9tor%C3%A9sistance%20tunnel
correct, feminine noun
Record 1, Abbreviations, French
- TMR 1, record 1, French, TMR
correct, feminine noun
Record 1, Synonyms, French
- magnétorésistance à effet tunnel 2, record 1, French, magn%C3%A9tor%C3%A9sistance%20%C3%A0%20effet%20tunnel
correct, feminine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
La magnétorésistance tunnel [...] utilise la différence de densité d'état électronique en fonction du spin pour les matériaux ferromagnétiques. On considère que lors d'une transition tunnel, l'électron qui a traversé la barrière tunnel ne change pas de spin. Pour obtenir une [magnétorésistance tunnel], on réalise un empilement de deux couches ferromagnétiques séparées cette fois par une couche très mince (de l'ordre de nanomètre) d'isolant, jouant le rôle de barrière tunnel pour les électrons. 3, record 1, French, - magn%C3%A9tor%C3%A9sistance%20tunnel
Record 1, Key term(s)
- magnéto-résistance tunnel
- magnéto-résistance à effet tunnel
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2013-08-26
Record 2, English
Record 2, Subject field(s)
- Magnetism
Record 2, Main entry term, English
- ferromagnet
1, record 2, English, ferromagnet
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, French
Record 2, Domaine(s)
- Magnétisme
Record 2, Main entry term, French
- ferro-aimant
1, record 2, French, ferro%2Daimant
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
- aimant ferromagnétique 2, record 2, French, aimant%20ferromagn%C3%A9tique
correct, masculine noun
Record 2, Textual support, French
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 1994-01-24
Record 3, English
Record 3, Subject field(s)
- Mathematics
- Computer Graphics
Record 3, Main entry term, English
- infinite cluster
1, record 3, English, infinite%20cluster
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 CONT
Below the percolation threshold(above the Curie point for magnets), clusters of only finite size exist : the coffee does not dip through, and the chunk of iron is only "paramagnetic". But above the percolation threshold(below the Curie point), infinite clusters are common, with well-known consequences, depending on the application : a forest fire will spread to the other end of the forest... and iron... [will become] a ferromagnet. 1, record 3, English, - infinite%20cluster
Record 3, French
Record 3, Domaine(s)
- Mathématiques
- Infographie
Record 3, Main entry term, French
- amas infini
1, record 3, French, amas%20infini
correct, masculine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, Textual support number: 1 CONT
Au-delà d'une concentration critique, il apparaît un amas infini, c'est-à-dire un amas qui connecte un bord à l'autre de la région du plan choisie, aussi grande soit-elle. 1, record 3, French, - amas%20infini
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 1985-04-30
Record 4, English
Record 4, Subject field(s)
- Thermodynamics
Record 4, Main entry term, English
- order parameter
1, record 4, English, order%20parameter
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
Record 4, Textual support, English
Record number: 4, Textual support number: 1 CONT
The degree of ordering in a system undergoing a phase transition can be made quantitative in terms of an order parameter. At temperatures above the transition temperature the order parameter has a value zero, and below the transition it acquires some nonzero value. For example, in a ferromagnet the order parameter is the magnetic moment per unit volume(in the absence of an externally applied magnetic field). 1, record 4, English, - order%20parameter
Record 4, French
Record 4, Domaine(s)
- Thermodynamique
Record 4, Main entry term, French
- paramètre d'ordre
1, record 4, French, param%C3%A8tre%20d%27ordre
correct, masculine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
Record 4, Textual support, French
Record number: 4, Textual support number: 1 CONT
Une notion très féconde pour classer les transitions fut introduite, en 1937, par L.D. Landau. Ce physicien remarqua que le passage d'une phase à l'autre, lors d'une transition du deuxième ordre, s'accompagnait d'un changement de symétrie, auquel il associa la notion de paramètre d'ordre. Cette grandeur, de caractère extensif, est nulle dans la phase la plus symétrique et non nulle dans l'autre. Ainsi, lors d'une transition paramagnétique-ferromagnétique, le paramètre d'ordre est l'aimantation, qui est nulle dans la phase paramagnétique et non nulle dans la phase ferromagnétique. 2, record 4, French, - param%C3%A8tre%20d%27ordre
Record 4, Spanish
Record 4, Textual support, Spanish
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