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Issue 33, 2018
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Interface induced magnetic properties of Gd/Co heterostructures

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Antiferromagnetic coupling between rare-earth and transition metal ferromagnetic layers gives rise to various magnetic ground states in heterostructures of these materials. Interface structure and morphology tend to play important roles in magnetic properties of such systems. Interface induced magnetization in Gd/Co heterostructures has been studied using a combination of structural and magnetic characterization techniques. The interface morphology of the Gd/Co system was varied by growing Gd/Co multilayers using magnetron sputtering under different argon partial pressures. Interfacial properties were further modified by annealing the multilayers under high vacuum. The macroscopic magnetization measurements have been correlated with depth dependent structure and magnetic properties of multilayers studied using X-ray and polarized neutron reflectometry techniques. Secondary ion mass spectrometry measurements from both as-deposited and annealed samples also confirmed modification at the interfaces. It has been shown that the interface structure, together with roughness, leads to a unique low-temperature magnetic phase characterized by twisting of Gd and Co moments.

Graphical abstract: Interface induced magnetic properties of Gd/Co heterostructures

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Publication details

The article was received on 07 May 2018, accepted on 26 Jul 2018 and first published on 26 Jul 2018

Article type: Paper
DOI: 10.1039/C8CP02909A
Citation: Phys. Chem. Chem. Phys., 2018,20, 21580-21589
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    Interface induced magnetic properties of Gd/Co heterostructures

    M. A. Basha, C. L. Prajapat, M. Gupta, H. Bhatt, Y. Kumar, S. K. Ghosh, V. Karki, S. Basu and S. Singh, Phys. Chem. Chem. Phys., 2018, 20, 21580
    DOI: 10.1039/C8CP02909A

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