Ion irradiation damage in nanocrystalline FeCo thin films

Rivière, J.P.; Bouillaud, P.; Dinhut, J.F.; Delafond, J.

doi:10.1080/10420159008213091

Cited by 11 publications

(1 citation statement)

References 20 publications

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“…This result may be attributed to the irradiation-induced amorphous phase with lower resistance, which is connected in parallel with the original transport channel, resulting in a reduction of resistance. Note that similar longitudinal resistivity reduction results have been reported in the heavy ions irradiated FeCo and NiAl alloys [34,35], which are attributed to the irradiation-induced amorphization in crystalline materials.…”

Section: Resultssupporting

confidence: 84%

Tetragonal distortion modified magnetism and anomalous Hall effect of Mn₂CoAl Heusler alloys through Ar ion irradiation

Chen¹,

Yan²,

Liu³

et al. 2022

J. Phys. D: Appl. Phys.

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Tetragonal Heusler alloys are attracting more attention owing to their great scientific and technological interest in spintronics. However, the crystal structures of most Heusler alloys are cubic. One feasible method to obtain tetragonal Heusler alloy is to manipulate the out-of-plane distortion of cubic Heusler alloys. In this work, we report the ion irradiation-induced tetragonal distortion in Mn2CoAl Heusler films. The out-of-plane lattice constant continuously increases from 5.84 to 6.09 Å, while the in-plane lattice constant remains nearly unchanged. Magnetic measurements show that saturation magnetization at 50 K decreases from 258 emu/cc to 167 emu/cc under Ar ion irradiation. Transport measurements show that the longitudinal resistivity decreases with increasing irradiation doses, and the anomalous Hall resistivity changes from negative to positive. Moreover, it is found that hump-like anomalies can be observed in the Hall resistivity loops at the irradiation dose of 1×〖10〗^14 and 1×〖10〗^15 /cm2, which are attributed to the irradiation-induced inhomogeneous magnetism in the surface and interface parts. This work demonstrates the considerable tunability of the structure, magnetism and transport properties of Mn2CoAl Heusler alloys by Ar ion irradiation.

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Section: Resultssupporting

confidence: 84%

Tetragonal distortion modified magnetism and anomalous Hall effect of Mn₂CoAl Heusler alloys through Ar ion irradiation

Chen¹,

Yan²,

Liu³

et al. 2022

J. Phys. D: Appl. Phys.

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show abstract

Mössbauer Effect Studies of Nanostructured Materials

Campbell

Gleiter

1993

Mössbauer Spectroscopy Applied to Magnetism and Materials Science

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Electrical resistivity and EXAFS behavior in ion-irradiated nanocrystalline Fe60Co40 thin films

Rivière

Dinhut

Delafond

et al. 1991

Nuclear Instruments and Methods in Physics Research Section B:

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Ion irradiation damage in nanocrystalline FeCo thin films

Cited by 11 publications

References 20 publications

Tetragonal distortion modified magnetism and anomalous Hall effect of Mn₂CoAl Heusler alloys through Ar ion irradiation

Tetragonal distortion modified magnetism and anomalous Hall effect of Mn₂CoAl Heusler alloys through Ar ion irradiation

Mössbauer Effect Studies of Nanostructured Materials

Electrical resistivity and EXAFS behavior in ion-irradiated nanocrystalline Fe60Co40 thin films

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Ion irradiation damage in nanocrystalline FeCo thin films

Cited by 11 publications

References 20 publications

Tetragonal distortion modified magnetism and anomalous Hall effect of Mn2CoAl Heusler alloys through Ar ion irradiation

Tetragonal distortion modified magnetism and anomalous Hall effect of Mn2CoAl Heusler alloys through Ar ion irradiation

Mössbauer Effect Studies of Nanostructured Materials

Electrical resistivity and EXAFS behavior in ion-irradiated nanocrystalline Fe60Co40 thin films

Contact Info

Product

Resources

About

Tetragonal distortion modified magnetism and anomalous Hall effect of Mn₂CoAl Heusler alloys through Ar ion irradiation

Tetragonal distortion modified magnetism and anomalous Hall effect of Mn₂CoAl Heusler alloys through Ar ion irradiation