Magnetic domain structure of iron-based microwires after removal of the glass shell by chipping and chemical etching

Мұқаба

Дәйексөз келтіру

Толық мәтін

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Рұқсат жабық Тек жазылушылар үшін

Аннотация

The magnetic domain structure of the surface of microwires with composition Fe73.9B13.2Si10.9C2 was studied by magnetic force microscopy. It has been found that the removal of glass shell by chipping leads to distortion of the original magnetic domain structure. Chemical etching of the glass shell makes it possible to observe the magnetic domain structure due to the stresses that have arisen due to the microwire production. In the absence of an applied magnetic field, a magnetic domain structure of the surface layer is observed, consisting of domain layers inclined to the microwire axis by 45 or 135 degrees. This structure has a shape close to a zigzag. The thickness of the domain layers is not constant and varies from 3 to 5 μm. It has been found that the application of a constant magnetic field along the microwire axis causes the formation of ring domain layers of various thicknesses (from 1 to 5 μm) with different orientations of the magnetic moment relative to the microwire surface. In a field of 60 oersteds along the axis of the microwire, the domain magnetic structure consists of only ring layers of domains. Magnetic field inversion leads to almost complete inversion of the observed domain structure. In this case, the complete removal of the magnetic field leads to the formation of a new domain structure of the surface layer. Such a structure is close in shape and position of the domains to the original one, but does not repeat it.

Авторлар туралы

O. Aksenov

ISSP RAS

Хат алмасуға жауапты Автор.
Email: oleg_aksenov@inbox.ru
Ресей, Chernogolovka

A. Fuks

ISSP RAS; HSE University

Email: oleg_aksenov@inbox.ru
Ресей, Chernogolovka; Moscow

A. Aronin

ISSP RAS

Email: oleg_aksenov@inbox.ru
Ресей, Chernogolovka

Әдебиет тізімі

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Қосымша файлдар

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Әрекет
1. JATS XML
Жүктеу
2. Fig. 1. A model of the magnetic domain structure of a microwire with positive magnetostriction. The short arrows show the magnetic moments.

Жүктеу (159KB)
Метадеректер
3. Fig. 2. SEM image of a micropipe of the composition Fe73.9B13.2Si10.9C2.

Жүктеу (151KB)
Метадеректер
4. Fig. 3. Two-dimensional and three-dimensional MSM images of the magnetic domain structure of the micro-conductor composition Fe73.9B13.2Si10.9C2 after chipping glass in two regions (at a distance of 50 microns from each other). The axis of the microwire corresponds to the axis of the abscissa in the images.

Жүктеу (1MB)
Метадеректер
5. Fig. 4. Two-dimensional and three–dimensional MSM images of the magnetic domain structure of the microconductor composition Fe73.9B13.2Si10.9C2 after chemical etching: a - in the field 0 (a), 60 (b) and -60 E (c) directed along the axis of the sample; d – after removing the magnetic field.

Жүктеу (1MB)
Метадеректер

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