Stress-tailoring magnetic anisotropy of 
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 bilayers

Wolowiec, Christian; Ramírez, Juan Gabriel; Lee, Min‐Han; Ghazikhanian, Nareg; Vargas, Nicolás M.; Basaran, Ali C.; Salev, Pavel; Schuller, Iván K.

doi:10.1103/physrevmaterials.6.064408

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2024

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Cited by 3 publications

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“…• shift of V 2 O 3 (012) across its structural phase transition [30]. In the V 2 O 3 /Ni system, the change in the magnetic anisotropy is induced by the structural phase transition and growth-induced strain [31]. If structural changes are associated with certain crystallographic directions, as in the case of V 2 O 3 /Ni system, an emergence of an in-plane magnetic easy axis in hematite/Py would likely be observed.…”

Section: Discussionmentioning

confidence: 99%

Coercivity Enhancement in Hematite/Permalloy Heterostructures Across the Morin Transition

Wang,

Basaran,

Hage

et al. 2024

Preprint

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Section: Discussionmentioning

confidence: 99%

Coercivity Enhancement in Hematite/Permalloy Heterostructures Across the Morin Transition

Wang,

Basaran,

Hage

et al. 2024

Preprint

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Phase coexistence induced surface roughness in V2O3/Ni magnetic heterostructures

Ignatova,

Vlasov,

Seddon

et al. 2024

APL Materials

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We present an investigation of the microstructure changes in V2O3 as it goes through its inherent structural phase transition. Using V2O3 films with a well-defined crystal structure deposited by reactive magnetron sputtering on r-plane Al2O3 substrates, we study the phase coexistence region and its impact on the surface roughness of the films and the magnetic properties of overlying Ni magnetic layers in V2O3/Ni hybrid magnetic heterostructures. The simultaneous presence of two phases in V2O3 during its structural phase transition was identified with high resolution x-ray diffraction and led to an increase in surface roughness observed using x-ray reflectivity. The roughness reaches its maximum at the midpoint of the transition. In V2O3/Ni hybrid heterostructures, we find a concomitant increase in the coercivity of the magnetic layer correlated with the increased roughness of the V2O3 surface. The chemical homogeneity of the V2O3 is confirmed through transmission electron microscopy analysis. High-angle annular dark field imaging and electron energy loss spectroscopy reveal an atomically flat interface between Al2O3 and V2O3, as well as a sharp interface between V2O3 and Ni.

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Antiferromagnetic V2O3 based exchange coupling

el Hage,

Wang,

et al. 2024

Phys. Rev. Materials

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Stress-tailoring magnetic anisotropy of V2O3/Ni bilayers

Cited by 3 publications

References 48 publications

Coercivity Enhancement in Hematite/Permalloy Heterostructures Across the Morin Transition

Coercivity Enhancement in Hematite/Permalloy Heterostructures Across the Morin Transition

Phase coexistence induced surface roughness in V2O3/Ni magnetic heterostructures

Antiferromagnetic V2O3 based exchange coupling

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