Rights statement: The final, definitive version of this article has been published in the Journal, Philosophical Magazine, 94 (6), 2014, © Informa Plc
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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Covariant hysteretic constitutive theory for Maxwell's equations
T2 - application to axially rotating media
AU - Hale, Alison C.
AU - Tucker, Robin W.
N1 - The final, definitive version of this article has been published in the Journal, Philosophical Magazine, 94 (6), 2014, © Informa Plc
PY - 2014/2/21
Y1 - 2014/2/21
N2 - This paper explores a class of non-linear constitutive relations for materials with memory in the framework of covariant macroscopic Maxwell theory. Based on earlier models for the response of hysteretic ferromagnetic materials to prescribed slowly varying magnetic background fields, generalized models are explored that are applicable to accelerating hysteretic magneto-electric substances coupled self-consistently to Maxwell fields. Using a parameterized model consistent with experimental data for a particular material that exhibits purely ferroelectric hysteresis when at rest in a slowly varying electric field, a constitutive model is constructed that permits a numerical analysis of its response to a driven harmonic electromagnetic field in a rectangular cavity. This response is then contrasted with its predicted response when set in uniform rotary motion in the cavity.
AB - This paper explores a class of non-linear constitutive relations for materials with memory in the framework of covariant macroscopic Maxwell theory. Based on earlier models for the response of hysteretic ferromagnetic materials to prescribed slowly varying magnetic background fields, generalized models are explored that are applicable to accelerating hysteretic magneto-electric substances coupled self-consistently to Maxwell fields. Using a parameterized model consistent with experimental data for a particular material that exhibits purely ferroelectric hysteresis when at rest in a slowly varying electric field, a constitutive model is constructed that permits a numerical analysis of its response to a driven harmonic electromagnetic field in a rectangular cavity. This response is then contrasted with its predicted response when set in uniform rotary motion in the cavity.
KW - hysteresis
KW - ferroelectricity
KW - ferromagnetism
KW - multiferroics
KW - electromagnetism
KW - constitutive theory
KW - differential geometry
U2 - 10.1080/14786435.2013.858835
DO - 10.1080/14786435.2013.858835
M3 - Journal article
VL - 94
SP - 594
EP - 610
JO - Philosophical Magazine
JF - Philosophical Magazine
SN - 1478-6435
IS - 6
ER -