Search academic texts

Registration Number

0212U005693, 0112U003803 , R & D reports

Title

Dynamically controlled artificial magnon crystals based on arrays of nanoscale magnetic elements

popup.stage_title

Head

Melkov Gennadii,

Registration Date

08-01-2013

Organization

Taras Shevchenko Kiev university

popup.description2

The physical properties of nanoelements (nanodots) arrays were considered. The distance between nanodots provides a strong dipolar interaction between them. If the distance between nanodots decreases, the dipole interaction between them arised. Now arrays of nanodots can be considered as magnon crystal formed separate makro spins - magnetization of each nanodots.. Interaction between makro spin results to the existence of a new class magnon dipole waves of crystal, including non-reciprocal waves. Array of interacting nanodots has several stable states, switching between them can be used to control the microwave properties of the magnon crystal. Defined forms of switching pulses to quickly switch states. The case of finite size array was considered. The effect of changing the characteristic fields of the crystal was investigated , for example, the field of nucleation (birth) of magnetic vortices. The influence on the properties of nanodots arrays of dots defects and technological defects were investigated. This influence lead to a change in the properties of the nanodots.

Product Description

popup.authors

Божко Д.А.
Верба Р.В.
Кисіль О.В.
Коблянський Ю.В.
Кондратович Ю.В.
Малишев В.Ю.
Мелков Г.А.
Прокопенко О.В.
Романюк В.Ф
Романюк О.В.
Слободянюк Д.В.
Усенко В.

popup.nrat_date

2020-04-02