单词 | antiferromagnetic |
释义 | antiferromagneticadj.n. A. adj. Characterized by oppositely directed (or anti-parallel) alignment of electron spin. 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] > characterized by opposite alignment antiferromagnetic1936 1936 Sci. Abstr. A. XXXIX. 548 Cases where interchange action occurs, but with a positive coefficient, are indicated as antiferromagnetic. 1938 Physical Rev. 54 82/1 Manganese probably is an antiferromagnetic substance. 1949 Physical Rev. 76 1257/1 At absolute zero all of the atoms on one lattice have their electronic magnetic moments aligned in the same direction and all of the atoms on the other lattice have their moments antiparallel to the first. Above the Curie temperature the thermal energy is sufficient to overcome the tendency of the atoms to lock antiparallel... Materials exhibiting the characteristics described above have been designated ‘antiferromagnetic’. B. n. A magnetic substance with these properties. L. Néel 1932, writing in French in Ann. Phys. XVIII. 5f., introduced the idea of antiferromagnetism but did not use the words antiferromagnétique, -magnétisme. ΚΠ 1955 Sci. News 37 36 In ferro-, antiferro-, or ferri-magnetics the alignment of atomic magnets is ordered and periodic. Derivatives ˌantiferroˈmagnetism n. the quality of being antiferromagnetic; the phenomena exhibited by antiferromagnetic bodies. ΚΠ 1938 F. Bitter in Physical Rev. 54 79 The proposed equations of state..may be regarded as an attempt to describe antiferromagnetism (i.e., the case in which oppositely directed spins on adjacent atoms have the lowest energy). 1961 Encycl. Dict. Physics I. 222/1 The state of complete antiferromagnetism (antiparallel alignment of spin vectors) will be attained only at absolute zero. This entry has not yet been fully updated (first published 1972; most recently modified version published online June 2011). < |
随便看 |
英语词典包含1132095条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。