Вид документа : Статья из журнала Шифр издания : 54/R 42 Автор(ы) : Rempel A. A., Nazarova S. Z., Gusev A. I. Заглавие : Magnetic Properties of a Monocrystalline Quasicrystal in the Al–Pd–Mn System Место публикации : JETP Letters. - 2000. - Vol. 72, № 3. - С. P. 144-147: il. Примечания : Bibliogr. : p. 147 (11 ref.) ISSN: 0021-3640 ББК : 54 Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ Ключевые слова (''Своб.индексиров.''): свойства магнитные--квазикристаллы--al–pd–mn Аннотация: Magnetic susceptibility of a monocrystalline icosahedral Al70.2Pd21.3Mn8.5 quasicrystal was measured over the temperature range from 4 to 1100 K. The susceptibility was found to include the temperature-independent diamagnetic contribution, the temperature-dependent Curie’s contribution, and the contribution from the Pauli paramagnetism of an electron system with energy gap. An analysis of the low-temperature susceptibility revealed the presence of about 0.008% of ions with magnetic moment 4mB in the quasicrystal at 4 K. It is assumed that the ions with uncompensated magnetic moments appear near the structural vacancies in the quasicrystal lattice. The energy gap between the valence and conduction bands is estimated at D = 0.64 eV, and the effective mass of charge carriers is equal to approximately 70 electron masses Доп.точки доступа: Nazarova, S. Z.; Назарова Светлана Зямовна; Gusev, A. I.; Гусев Александр Иванович; Ремпель Андрей Андреевич