2020
DOI: 10.1016/j.jmmm.2020.167126
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Surface morphology and exchange bias of wrinkled NiFe/IrMn bilayers grown on polydimethylsiloxane

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Cited by 8 publications
(6 citation statements)
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“…For the other range of φ, H eb behaves linearly with changing φ far away from the EB direction and the corresponding H c is smaller than 10 Oe. Consistent with the typical features of a polycrystalline FM/AFM EB system [33], the angular dependent behaviors can be described by the SW model [8]. Considering a unidirectional anisotropy K eb collinear to a uniaxial anisotropy K u [9], the energy per unit volume of the system is given as E = −K u cos 2 θ − K eb cos θ − M s H cos (φ − θ), where M s is the saturation magnetization, which is 1400 emu cc −1 for CoFeB films, and θ is the orientation of M s with respect to MgO[100].…”
Section: Resultssupporting
confidence: 78%
“…For the other range of φ, H eb behaves linearly with changing φ far away from the EB direction and the corresponding H c is smaller than 10 Oe. Consistent with the typical features of a polycrystalline FM/AFM EB system [33], the angular dependent behaviors can be described by the SW model [8]. Considering a unidirectional anisotropy K eb collinear to a uniaxial anisotropy K u [9], the energy per unit volume of the system is given as E = −K u cos 2 θ − K eb cos θ − M s H cos (φ − θ), where M s is the saturation magnetization, which is 1400 emu cc −1 for CoFeB films, and θ is the orientation of M s with respect to MgO[100].…”
Section: Resultssupporting
confidence: 78%
“…In fact, the relationship between the exchange anisotropy behavior and the structure and morphology of the interface is well established [37][38][39][40][41][42]. The layer deposition order [39,40] as well as the surface roughness in NiFe/IrMn [40] and in NiFe/NiO [41] affect the exchange anisotropy value.…”
Section: The Interface (F)/(af)mentioning
confidence: 99%
“…The layer deposition order [39,40] as well as the surface roughness in NiFe/IrMn [40] and in NiFe/NiO [41] affect the exchange anisotropy value. The surface morphology and the exchange anisotropy were studied in NiFe/IrMn bilayer deposited on a flexible substrate [42]. Also, the interdiffusion is not to be excluded.…”
Section: The Interface (F)/(af)mentioning
confidence: 99%
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“…NiFe/IrMn is one of the exchange biased systems widely applied in planar Hall sensors [30,31], magnetic tunnel junction devices [32,33], microwave integrated circuits [34,35], strain sensors [36], flexible and shapeable electronics [37,38]. The interfacial spin configuration of the AF layers is very sensitive to structural defects, that facilitates bending strain tailored exchange bias [39,40], successfully implemented in wrinkled NiFe/IrMn thin films [37], grown on flexible substrates. In addition, conductivity of IrMn is ∼10 times lower than the one of NiFe, that allows wide applications of the NiFe/IrMn structures in anisotropic magnetoresistive sensors with minimized shunt currents [30,31].…”
Section: Introductionmentioning
confidence: 99%