单词 | photomagnetic |
释义 | photomagneticadj. Physics. ΘΚΠ the world > matter > physics > electromagnetic radiation > magnetism > [adjective] > relating to former ideas magnetical1626 coercive1836 photomagnetic1858 1858 R. G. Mayne Expos. Lexicon Med. Sci. (1860) 948/2 Photomagneticus, the photomagnetic phænomena discovered by Morichini, having the property enjoyed by certain of the rays of the solar spectrum..of communicating the magnetic influence to steel needles. 2. a. Involving both optical and magnetic effects or phenomena. ΚΠ 1910 Science 30 Dec. 966/2 This paper gave a description of the occurrence of a lightning discharge..and the effect it produced upon the self-recording magnetic instruments. Lantern slides of the photo-magnetic records during the thunderstorm were exhibited. 1924 Science 11 July 31/2 The photo-magnetic effects now appearing in the literature should be inserted under the electrical group. 1935 Language 11 20 These signals do possess a characteristic peculiarity which is constantly associated with their ‘redness’, viz. the property of emitting or reflecting to the eye of the motorist photo-magnetic impulses in which wave-lengths of about 671 μμ are present. 1943 Proc. Royal Soc. 1942–3 A. 181 52 Photo-magnetic effect. This is a transition from the normal triplet state Ψ0 of the deuteron into a singlet state ΨE of the continuous spectrum. 1982 Science 5 Feb. 607 (advt.) Photoelectric and photomagnetic effects..and x-ray luminescence are not included. 1999 University Wire (Nexis) 30 Aug. They could be essential for increasing the density of information stored in floppy disc or in photomagnetic responses, where light acts as a trigger for a magnetic sensor. b. spec. = photomagnetoelectric adj. ΘΚΠ the world > matter > physics > solid state physics > semiconductivity > [adjective] > specific effect in some solids photomagnetoelectric1934 photoelectromagnetic1953 photomagnetic1959 the world > matter > physics > electromagnetic radiation > electricity > voltage > photovoltaics > [adjective] > affected by magnetic field photomagnetoelectric1934 photoelectromagnetic1953 photomagnetic1959 1959 R. A. Smith Semiconductors viii. 315 From equations (309) and (328) we may obtain an expression for the ratio of the photo-magnetic current per unit magnetic field to the photo-conductive current per unit electric field. 1975 Physics Bull. Jan. 15/1 The materials in which such ‘photomagnetic’ phenomena have been observed so far are magnetic insulators or semiconductors. 2002 Physical Rev. B. 66 054423-1 The photomagnetic properties of the compound were investigated in order to determine the experimental conditions for a complete low-to-high-spin photoconversion of the Fe2+ ions. This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022). < adj.1858 |
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