TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
ATOME CHAUD [2 records]
Record 1 - internal organization data 2014-01-29
Record 1, English
Record 1, Subject field(s)
- Scientific Instruments
- Atomic Physics
Record 1, Main entry term, English
- tip
1, record 1, English, tip
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
In the STM [Scanning Tunneling Microscope] the "aperture" is a tiny tungsten probe, its tip ground so fine that it may consist of only a single atom and measure just .2 nanometer in width. Piezoelectric controls maneuver the tip to within a nanometer or two of the surface of conducting a specimen - so close that the electron clouds of the atom at the probe tip and of the nearest atom of the specimen overlap. When a small voltage is applied to the tip, electrons tunnel across the gap, generating a minuscule tunneling current. 2, record 1, English, - tip
Record number: 1, Textual support number: 1 PHR
Tip-induced anodization. 3, record 1, English, - tip
Record number: 1, Textual support number: 2 PHR
The tip is moved toward the surface, is passed over bumps, is set vibrating, is scanned back and forth, is warmed, oscillates, reads the surface. 4, record 1, English, - tip
Record number: 1, Textual support number: 3 PHR
Excursion, pressure temperature, thermocouple of the tip. 4, record 1, English, - tip
Record number: 1, Textual support number: 4 PHR
Tip deflection, vibration. 4, record 1, English, - tip
Record number: 1, Textual support number: 5 PHR
Negatively, positively charged, vibrating tip. 4, record 1, English, - tip
Record number: 1, Textual support number: 6 PHR
Nanotip. 4, record 1, English, - tip
Record 1, French
Record 1, Domaine(s)
- Instruments scientifiques
- Physique atomique
Record 1, Main entry term, French
- pointe
1, record 1, French, pointe
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
L'étirage de l'extrémité des fils métalliques à chaud sous ultravide et champ électrique intense, est une technique employée pour fabriquer des pointes de microscopes à effet tunnel présentant un apex dont la forme est en principe exactement connue. Sous champ électrique intense, la diffusion des atomes en surface de l'apex tend à favoriser la formation de facettes. En général, le raccord entre ces facettes situées au bout de l'apex donne lieu à la formation de pointes terminées par un unique atome et sans protubérances latérales. Ce genre de pointe n’ est pourtant pas souvent utilisée. Sous ultravide, le nettoyage des pointes fabriquées par électrochimie, à l'aide d’un faisceau d’électrons, semble permettre également la formation de ces facettes. 1, record 1, French, - pointe
Record number: 1, Textual support number: 1 OBS
Les pointes utilisées en microscopie tunnel sont obtenues par attaque électrochimique ou par section d’un fil sous tension mécanique. Ces procédés, très empiriques, ne donnent pas des résultats d’une très grande reproductibilité. 2, record 1, French, - pointe
Record number: 1, Textual support number: 1 PHR
Pointe à multiples têtes, à têtes fourchues. 1, record 1, French, - pointe
Record number: 1, Textual support number: 2 PHR
Pointe d’un microscope à champ proche, d’un microscope à effet tunnel, de composition chimique particulière. 1, record 1, French, - pointe
Record number: 1, Textual support number: 3 PHR
Apex, courbure de la pointe. 1, record 1, French, - pointe
Record number: 1, Textual support number: 4 PHR
Pointe fixée sur le cantilever, isolante électriquement, métallique, modélisée par un puits de potentiel sphérique multiple, plate, soumise à des champs électriques, ultrafine. 1, record 1, French, - pointe
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Instrumentos científicos
- Física atómica
Record 1, Main entry term, Spanish
- punta
1, record 1, Spanish, punta
correct, feminine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
Record 1, Textual support, Spanish
Record number: 1, Textual support number: 1 CONT
Una parte fundamental de los microscopios de sonda de barrido es la punta de la sonda. Esta tiene que cumplir tres características fundamentales: 1º ser de anchura nanométrica, ya que esta dimensión determina la resolución; 2º tener la longitud suficiente como para poder rastrear desniveles y orificios profundos; 3º ser suficientemente resistente como para no ser dañada en la interacción que se produce con la muestra. 1, record 1, Spanish, - punta
Record 2 - internal organization data 1996-08-26
Record 2, English
Record 2, Subject field(s)
- Atomic Physics
- Chemistry
Record 2, Main entry term, English
- hot atom
1, record 2, English, hot%20atom
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
An atom in an excited energy state or having kinetic energy above the thermal level of the surroundings, usually as a result of nuclear processes. 2, record 2, English, - hot%20atom
Record 2, French
Record 2, Domaine(s)
- Physique atomique
- Chimie
Record 2, Main entry term, French
- atome chaud
1, record 2, French, atome%20chaud
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Atome dans un état excité, ou qui possède une énergie cinétique supérieure au niveau thermique de son entourage, par suite généralement de processus nucléaires. 2, record 2, French, - atome%20chaud
Record 2, Spanish
Record 2, Textual support, Spanish
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