Published June 15, 2011 | Version v1
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Influence of helical anisotropy on GMI effect in co-based amorphous ferromagnetic microwires

Creators

  • 1. Department of Physics, Faculty of Electrical Engineering and Informatics, Technical University of Kosice, 04200 Kosice (Slovakia)

Description

In the presented experiments the GMI ratio at the frequency of 1 MHz was measured at different amplitudes iac of the harmonic current flowing through the microwire Co70.5Fe4.5Si15B10. The maximum GMI ratio (ΔZ/Z)max dependence on the amplitude iac (or circular field Hφ = iac /2πa) was analysed by means of the helical anisotropy (α ≠ 0). Firstly, if the reversible magnetization rotation occurs, then the maximum GMI ratio (ΔZ/Z)max increases with amplitude iac ≤ 1 mA (or circular field Hφ > 22.7 Am-1 ). Secondly, if the irreversible rotation of magnetization starts at iac > 1 mA (or circular field Hφ > 22.7 Am-1), then the hysteretic behaviour is observed in the measured GMI dependences [6]. These phenomena are here explained by means of the helical anisotropy (α≠0) existing in the glass-coated ferromagnetic amorphous CoFeSiB microwire. (authors)

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Part of:
Proceedings 17. International Conference on Applied Physics of Condensed Matter

Additional details

Identifiers

URL
http://kf.elf.stuba.sk/~apcom/apcom11/proceedings/;

Publishing Information

Publisher
University of Zilina
Imprint Place
Zilina (Slovakia)
ISBN
978-80-554-0386-1
Imprint Title
Proceedings 17. International Conference on Applied Physics of Condensed Matter
Imprint Pagination
328 p.
Journal Page Range
p. 200-203
Report number
INIS-SK--2016-043

Conference

Title
17. International Conference on Applied Physics of Condensed Matter
Acronym
APCOM 2011
Dates
22-24 Jun 2011
Place
High Tatras (Slovakia)

INIS

Country of Publication
Slovakia
Country of Input or Organization
Slovakia
INIS RN
47127124
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference, Numerical Data
Descriptors DEI
ANISOTROPY; BORON ALLOYS; COBALT BASE ALLOYS; ELECTRICAL PROPERTIES; EXPERIMENTAL DATA; IRON BASE ALLOYS; MAGNETIC PROPERTIES; MAGNETOSTRICTION; MATERIALS HANDLING; SILICON ALLOYS; SOLID STATE PHYSICS; WIRES
Descriptors DEC
ALLOYS; COBALT ALLOYS; DATA; INFORMATION; IRON ALLOYS; MAGNETIC PROPERTIES; NUMERICAL DATA; PHYSICAL PROPERTIES; PHYSICS; TRANSITION ELEMENT ALLOYS

Optional Information

Contract/Grant/Project number
Projects ITMS-26220120055; S.G.A-1/0136/10
Notes
4 figs., 6 refs. Imprint:Published also on CDROM 193 MBytes in PDF format