The Crystal Structure of MnF2, FeF2, CoF2, NiF2 and ZnF2

Stout, J. W.; Reed, Stanley A.

doi:10.1021/ja01650a005

Cited by 206 publications

(61 citation statements)

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“…10 Another system that also has a significant ∆M S is the Fe x Ni 1−x F 2 /Co bilayer, 15 where Fe x Ni 1−x F 2 is an AF with a random anisotropy. FeF 2 and NiF 2 are antiferromagnets that have the same rutile crystal structure, 16 but while FeF 2 has a strong uniaxial anisotropy along the [001] c-axis direction, 17,18 NiF 2 has an in-plane (001) anisotropy 19,20 with a Dzialoshinskii-Moriya interaction that makes this compound a weak ferromagnet. 21 Because the effective magnetic anisotropy fields in these two compounds are perpendicular to each other, the Fe x Ni 1−x F 2 alloy is an ideal tunable system to study the role of AF magnetic anisotropy in EB.…”

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confidence: 99%

Interfacial coupling between ferromagnets and random and dilute antiferromagnets

et al. 2011

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Depth profiles for pinned and unpinned magnetizations were determined across the interface between a ferromagnet (F) and random and dilute antiferromagnets (RAF and DAF) exemplified by Fe0.45Ni0.55F2/Co and Fe0.34Zn0.66F2/Co bilayers, respectively, using polarized neutron reflectivity (PNR). PNR measurements were complemented by magnetometry using applied fields as large as 160 kOe to assure saturation of the entire sample, including magnetic moments that are normally pinned at lower fields. The locations of pinned and unpinned magnetization in the ferro-and antiferromagnets were identified. The origin of exchange bias in the RAF system is noticeably different than that of the DAF system. In the RAF system, a domain wall is formed at the RAF/F interface when the ferromagnet's magnetization is reversed. In the DAF system, some domains within the bulk of the DAF are reversed upon reversal of the ferromagnet while others remain pinned. In this case, the interface magnetization is entirely reversed.

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confidence: 99%

Interfacial coupling between ferromagnets and random and dilute antiferromagnets

et al. 2011

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“…The FeF 2 crystal has a body-centered tetragonal structure with the Fe 2+ ions at the center of the unit cell ordered antiferromagnetically with those at the corners [17]. For FeF 2 (100), all spins are parallel within a plane but antiparallel to those spins in adjacent planes.…”

Section: Model and Methodsmentioning

confidence: 99%

Effect of Interface Roughness on Exchange Bias of an Uncompensated Interface: Monte Carlo Simulation

Li¹,

Moon²,

Lee³

2011

Journal of Magnetics

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By means of Monte Carlo simulation, we investigate the effects of interface roughness and temperature on the exchange bias and coercivity in ferromagnetic (FM)/antiferromagnetic (AFM) bilayers. Both exchange bias and coercivity are strongly dependent on interface roughness. For a perfect uncompensated interface a domain wall is formed in the AFM system during FM reversal, which results in a very small exchange bias. However, a finite interface roughness leads to a finite value of the exchange bias due to the existence of pinned spins at the AFM surface adjacent to the mixed interface. It is observed that the exchange bias decreases with increasing temperature, consistent with the experimental results. It is also observed that a bump in coercivity occurs around the blocking temperature.

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“…The FeF2 has a rutile-type crystal structure and Nèel temperature TN=79K [14][15][16][17]. KNiF3 has a very small uniaxial anisotropy in comparison to FeF2 [12][13][14][15][16][17].…”

Section: T I S U S E F U L a T T H I S P O I N T T O S U M M A R I mentioning

confidence: 99%

Dynamic and Rotatable Exchange Anisotropy in Fe/KNiF3/FeF2 Trilayers

Widuch¹,

Robert²,

Skrzypek³

et al. 2013

Ferromagnetic Resonance - Theory and Applications

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The Crystal Structure of MnF₂, FeF₂, CoF₂, NiF₂ and ZnF₂

Cited by 206 publications

References 0 publications

Interfacial coupling between ferromagnets and random and dilute antiferromagnets

Interfacial coupling between ferromagnets and random and dilute antiferromagnets

Effect of Interface Roughness on Exchange Bias of an Uncompensated Interface: Monte Carlo Simulation

Dynamic and Rotatable Exchange Anisotropy in Fe/KNiF3/FeF2 Trilayers

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