英语词汇“u- or u-process”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

Used attributively to designate interactions in a crystal lattice in which their total momentum is not conserved, and the momentum of the initial excitations is reversed. Abbrev. U- or u-process.

ΘΚΠ

the world > matter > physics > atomic physics > arrangement in crystal > [adjective] > involving reversal

Umklapp1951

1937 Physical Rev. 52 690/1 These authors neglect transitions due to the ‘Umklappprozesse’ of Peierls.]

1951 Proc. Royal Soc. A. 208 90 Further measurements made on a corundum crystal confirm the importance of the ‘Umklapp’ processes, postulated by Peierls, in causing thermal resistance.

1960 J. M. Ziman Electrons & Phonons iii. 133 We shall refer to U-processes, and, where wave vector is conserved,..N-processes.

1974 H. E. Hall Solid State Physics viii. 207 An Umklapp process can be thought of as one in which a phonon is Bragg reflected simultaneously with absorbing or emitting another phonon.

1975 H. M. Rosenberg Solid State vi. 99 In a continuous medium u-processes cannot occur.

1976 F. Cap tr. Busch & Schade Lect. Solid State Physics 67 At low temperatures the umklapp processes are essential for the establishment of thermal equilibrium in the crystal.

单词	u- or u-process
释义	> as lemmas U- or u-process Used attributively to designate interactions in a crystal lattice in which their total momentum is not conserved, and the momentum of the initial excitations is reversed. Abbrev. U- or u-process. ΘΚΠ the world > matter > physics > atomic physics > arrangement in crystal > [adjective] > involving reversal Umklapp1951 1937 Physical Rev. 52 690/1 These authors neglect transitions due to the ‘Umklappprozesse’ of Peierls.] 1951 Proc. Royal Soc. A. 208 90 Further measurements made on a corundum crystal confirm the importance of the ‘Umklapp’ processes, postulated by Peierls, in causing thermal resistance. 1960 J. M. Ziman Electrons & Phonons iii. 133 We shall refer to U-processes, and, where wave vector is conserved,..N-processes. 1974 H. E. Hall Solid State Physics viii. 207 An Umklapp process can be thought of as one in which a phonon is Bragg reflected simultaneously with absorbing or emitting another phonon. 1975 H. M. Rosenberg Solid State vi. 99 In a continuous medium u-processes cannot occur. 1976 F. Cap tr. Busch & Schade Lect. Solid State Physics 67 At low temperatures the umklapp processes are essential for the establishment of thermal equilibrium in the crystal. extracted from Umklappn. < as lemmas
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> as lemmas