Tunable thermal hysteresis in magnetic multilayers: magnetic superheating and supercooling

R. E. Camley; W. Lohstroh; G. P. Felcher; N. Hosoito; H. Hashizume

doi:10.1016/j.jmmm.2004.09.041

Tunable thermal hysteresis in magnetic multilayers: magnetic superheating and supercooling

R. E. Camley
, W. Lohstroh
, G. P. Felcher
, N. Hosoito
, H. Hashizume

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Abstract

The phenomena of superheating and supercooling can lead to a thermal hysteresis curve where two states are stable over a range of temperatures. Here we present a simple magnetic multilayer system (Fe/Gd) that can be designed to show a thermal hysteresis curve. Calculations show that, with proper choice of parameters, the width, in temperature, of the hysteresis curve can be controlled by an external magnetic field and varies from 20 to 100 K over a field range of 300–600 Oe. Polarized neutron reflectivity measurements confirm that such behavior is realized experimentally in multilayers of Fe/Gd.

Original language	English
Pages (from-to)	65-71
Number of pages	7
Journal	Journal of Magnetism and Magnetic Materials
Volume	286
Early online date	22 Oct 2004
DOIs	https://doi.org/10.1016/j.jmmm.2004.09.041
Publication status	Published - Feb 2005

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SDG 7 Affordable and Clean Energy

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10.1016/j.jmmm.2004.09.041

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title = "Tunable thermal hysteresis in magnetic multilayers: magnetic superheating and supercooling",

abstract = "The phenomena of superheating and supercooling can lead to a thermal hysteresis curve where two states are stable over a range of temperatures. Here we present a simple magnetic multilayer system (Fe/Gd) that can be designed to show a thermal hysteresis curve. Calculations show that, with proper choice of parameters, the width, in temperature, of the hysteresis curve can be controlled by an external magnetic field and varies from 20 to 100 K over a field range of 300–600 Oe. Polarized neutron reflectivity measurements confirm that such behavior is realized experimentally in multilayers of Fe/Gd.",

author = "Camley, \{R. E.\} and W. Lohstroh and Felcher, \{G. P.\} and N. Hosoito and H. Hashizume",

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T1 - Tunable thermal hysteresis in magnetic multilayers: magnetic superheating and supercooling

AU - Camley, R. E.

AU - Lohstroh, W.

AU - Felcher, G. P.

AU - Hosoito, N.

AU - Hashizume, H.

PY - 2005/2

Y1 - 2005/2

N2 - The phenomena of superheating and supercooling can lead to a thermal hysteresis curve where two states are stable over a range of temperatures. Here we present a simple magnetic multilayer system (Fe/Gd) that can be designed to show a thermal hysteresis curve. Calculations show that, with proper choice of parameters, the width, in temperature, of the hysteresis curve can be controlled by an external magnetic field and varies from 20 to 100 K over a field range of 300–600 Oe. Polarized neutron reflectivity measurements confirm that such behavior is realized experimentally in multilayers of Fe/Gd.

AB - The phenomena of superheating and supercooling can lead to a thermal hysteresis curve where two states are stable over a range of temperatures. Here we present a simple magnetic multilayer system (Fe/Gd) that can be designed to show a thermal hysteresis curve. Calculations show that, with proper choice of parameters, the width, in temperature, of the hysteresis curve can be controlled by an external magnetic field and varies from 20 to 100 K over a field range of 300–600 Oe. Polarized neutron reflectivity measurements confirm that such behavior is realized experimentally in multilayers of Fe/Gd.

U2 - 10.1016/j.jmmm.2004.09.041

DO - 10.1016/j.jmmm.2004.09.041

M3 - Article

SN - 0304-8853

VL - 286

SP - 65

EP - 71

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

ER -

Tunable thermal hysteresis in magnetic multilayers: magnetic superheating and supercooling

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