Very Low Field ac-Response at the Loss of Long Range Magnetic Order in Amorphous Fe<inf>90</inf>Zr<inf>10</inf>

J. Nogués; K. V. Rao

doi:https://doi.org/10.1109/20.281151

Very Low Field ac-Response at the Loss of Long Range Magnetic Order in Amorphous Fe<inf>90</inf>Zr<inf>10</inf>

J. Nogués, K. V. Rao

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Abstract

Low temperature ac-susceptbility measurements over 5 decades of ac-field (0.08 - 8000 A/m) have been carried out on amorphous ribbons of Fe90Zr10 and Fe91Zr9. We find that at very low fields (0.8 to 24 A/m) ac-response measurements eliminate the influence of domain and domain wall motion, the well known Hopkinson peak effects, to reveal clearly the reentrant characteristics. With such studies a reentrant freezing temperature Tsfis unambiguously revealed with an evident knee in χ″(T) and a corresponding well defined peak in χ″(T). The latter is found to be independent of the applied field (0.8 to 8 A/m) while being weakly dependent on the frequency (10-1000 Hz). We thus find Tsfto be 25 K and 40 K respectively for Fe90Zr10 and Fe91Zr9, amorphous ribbons. © 1993 IEEE

Original language	English
Pages (from-to)	3246-3248
Journal	IEEE Transactions on Magnetics
Volume	29
DOIs	https://doi.org/10.1109/20.281151
Publication status	Published - 1 Jan 1993

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title = "Very Low Field ac-Response at the Loss of Long Range Magnetic Order in Amorphous Fe90Zr10",

abstract = "Low temperature ac-susceptbility measurements over 5 decades of ac-field (0.08 - 8000 A/m) have been carried out on amorphous ribbons of Fe90Zr10 and Fe91Zr9. We find that at very low fields (0.8 to 24 A/m) ac-response measurements eliminate the influence of domain and domain wall motion, the well known Hopkinson peak effects, to reveal clearly the reentrant characteristics. With such studies a reentrant freezing temperature Tsfis unambiguously revealed with an evident knee in χ″(T) and a corresponding well defined peak in χ″(T). The latter is found to be independent of the applied field (0.8 to 8 A/m) while being weakly dependent on the frequency (10-1000 Hz). We thus find Tsfto be 25 K and 40 K respectively for Fe90Zr10 and Fe91Zr9, amorphous ribbons. {\textcopyright} 1993 IEEE",

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year = "1993",

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T1 - Very Low Field ac-Response at the Loss of Long Range Magnetic Order in Amorphous Fe90Zr10

AU - Nogués, J.

AU - Rao, K. V.

PY - 1993/1/1

Y1 - 1993/1/1

N2 - Low temperature ac-susceptbility measurements over 5 decades of ac-field (0.08 - 8000 A/m) have been carried out on amorphous ribbons of Fe90Zr10 and Fe91Zr9. We find that at very low fields (0.8 to 24 A/m) ac-response measurements eliminate the influence of domain and domain wall motion, the well known Hopkinson peak effects, to reveal clearly the reentrant characteristics. With such studies a reentrant freezing temperature Tsfis unambiguously revealed with an evident knee in χ″(T) and a corresponding well defined peak in χ″(T). The latter is found to be independent of the applied field (0.8 to 8 A/m) while being weakly dependent on the frequency (10-1000 Hz). We thus find Tsfto be 25 K and 40 K respectively for Fe90Zr10 and Fe91Zr9, amorphous ribbons. © 1993 IEEE

AB - Low temperature ac-susceptbility measurements over 5 decades of ac-field (0.08 - 8000 A/m) have been carried out on amorphous ribbons of Fe90Zr10 and Fe91Zr9. We find that at very low fields (0.8 to 24 A/m) ac-response measurements eliminate the influence of domain and domain wall motion, the well known Hopkinson peak effects, to reveal clearly the reentrant characteristics. With such studies a reentrant freezing temperature Tsfis unambiguously revealed with an evident knee in χ″(T) and a corresponding well defined peak in χ″(T). The latter is found to be independent of the applied field (0.8 to 8 A/m) while being weakly dependent on the frequency (10-1000 Hz). We thus find Tsfto be 25 K and 40 K respectively for Fe90Zr10 and Fe91Zr9, amorphous ribbons. © 1993 IEEE

U2 - https://doi.org/10.1109/20.281151

DO - https://doi.org/10.1109/20.281151

M3 - Article

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EP - 3248

JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

SN - 0018-9464

ER -

Very Low Field ac-Response at the Loss of Long Range Magnetic Order in Amorphous Fe<inf>90</inf>Zr<inf>10</inf>

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