Unusual slow magnetic relaxation on a SmCo2/GdCo2 domain wall junction at low temperature

J. E. Wegrowe; B. Barbara; V. S. Amaral; J. B. Sousa

doi:10.1016/S0304-8853(96)00043-1

Unusual slow magnetic relaxation on a SmCo₂/GdCo₂ domain wall junction at low temperature

J. E. Wegrowe
, B. Barbara
, V. S. Amaral
, J. B. Sousa

Research output: Contribution to journal › Article › peer-review

Abstract

The slow dynamics of the magnetization of a domain wall junction (ferromagnetic layers separated by an artificial planar barrier) has been studied through after-effect measurements. We show that two different dynamical magnetic processes take place at low temperature. The time and the thermal dependences of the magnetization suggest that a simple interpretation in terms of thermal activated processes is not always valid. An interpretation in terms of linear response to a local field is proposed.

Original language	English
Pages (from-to)	133-138
Number of pages	6
Journal	Journal of Magnetism and Magnetic Materials
Volume	161
DOIs	https://doi.org/10.1016/S0304-8853(96)00043-1
Publication status	Published - 1 Aug 1996

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10.1016/S0304-8853(96)00043-1

Cite this

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title = "Unusual slow magnetic relaxation on a SmCo2/GdCo2 domain wall junction at low temperature",

abstract = "The slow dynamics of the magnetization of a domain wall junction (ferromagnetic layers separated by an artificial planar barrier) has been studied through after-effect measurements. We show that two different dynamical magnetic processes take place at low temperature. The time and the thermal dependences of the magnetization suggest that a simple interpretation in terms of thermal activated processes is not always valid. An interpretation in terms of linear response to a local field is proposed.",

author = "Wegrowe, \{J. E.\} and B. Barbara and Amaral, \{V. S.\} and Sousa, \{J. B.\}",

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T1 - Unusual slow magnetic relaxation on a SmCo2/GdCo2 domain wall junction at low temperature

AU - Wegrowe, J. E.

AU - Barbara, B.

AU - Amaral, V. S.

AU - Sousa, J. B.

PY - 1996/8/1

Y1 - 1996/8/1

N2 - The slow dynamics of the magnetization of a domain wall junction (ferromagnetic layers separated by an artificial planar barrier) has been studied through after-effect measurements. We show that two different dynamical magnetic processes take place at low temperature. The time and the thermal dependences of the magnetization suggest that a simple interpretation in terms of thermal activated processes is not always valid. An interpretation in terms of linear response to a local field is proposed.

AB - The slow dynamics of the magnetization of a domain wall junction (ferromagnetic layers separated by an artificial planar barrier) has been studied through after-effect measurements. We show that two different dynamical magnetic processes take place at low temperature. The time and the thermal dependences of the magnetization suggest that a simple interpretation in terms of thermal activated processes is not always valid. An interpretation in terms of linear response to a local field is proposed.

U2 - 10.1016/S0304-8853(96)00043-1

DO - 10.1016/S0304-8853(96)00043-1

M3 - Article

AN - SCOPUS:0030206205

SN - 0304-8853

VL - 161

SP - 133

EP - 138

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

ER -

Unusual slow magnetic relaxation on a SmCo2/GdCo2 domain wall junction at low temperature

Abstract

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Unusual slow magnetic relaxation on a SmCo₂/GdCo₂ domain wall junction at low temperature