"Физика и техника полупроводников"
Вышедшие номера
Collective spin glass state in nanoscale particles of ferrihydrite
Полная версия: 10.1134/S1063782620120362
Russian Foundation for Basic Research, the Government of the Krasnoyarsk Territory, the Krasnoyarsk Regional Fund for the Support of Scientific and Technical Activities, Regional competition of projects of fundamental scientific research, 19-42-240012
Ministry of Education and Science of the Russian Federation, Grant from the President of the Russian Federation for state support of young Russian scientists - candidates of sciences, MK-1263.2020.3
Stolyar S.V.1,2,3, Yaroslavtsev R.N.1,2, Ladygina V.P.2, Balaev D.A.1,3, Pankrats A.I.1,3, Iskhakov R.S.1
1Kirensky Institute of Physics, Siberian Branch of Russian Academy of Sciences, Krasnoyarsk, Russia
2Krasnoyarsk Scientific Center, Federal Research Center KSC, Siberian Branch of Russian Academy of Sciences, Krasnoyarsk, Russia
3Siberian Federal University, Krasnoyarsk, Russia
Email: stol@iph.krasn.ru
Поступила в редакцию: 23 июня 2020 г.
Выставление онлайн: 11 сентября 2020 г.

Ferromagnetic resonance was used to study three types of ferrihydrite nanoparticles: nanoparticles formed as a result of the cultivation of microorganisms Klebsiella oxytoca; chemically ferrihydrite nanoparticles; chemically prepared ferrihydrite nanoparticles doped with Cu. It is established from the ferromagnetic resonance data that the frequency-field dependence (in the temperature range TP<T<T*) is described by the expression: 2πν/γ=HR+HA(T=0)·(1-T/T*), where γ is the gyromagnetic ratio, HR is the resonance field. The induced anisotropy HA is due to the spin-glass state of the near-surface regions. TP temperature characterizes the energy of the interparticle interaction of nanoparticles. Keywords: nanoparticles, ferrihydrite, magnetic anisotropy, magnetic resonance.

Подсчитывается количество просмотров абстрактов ("html" на диаграммах) и полных версий статей ("pdf"). Просмотры с одинаковых IP-адресов засчитываются, если происходят с интервалом не менее 2-х часов.

Дата начала обработки статистических данных - 27 января 2016 г.