Intrinsic giant magnetoresistance due to exchange-bias-type effects at the surface of single-crystalline NiS<sub>2</sub> nanoflakes

Hartmann, Roman; Högen, Michael; Lignon, Daphné; Tan, Anthony K. C.; Amado, Mario; El-Khatib, Sami; Egilmez, Mehmet; Das, Bhaskar; Leighton, Chris; Atatüre, Mete; Scheer, Elke; Di Bernardo, Angelo

doi:10.1039/d3nr00467h

Nanoscale

2023

DOI: 10.1039/d3nr00467h

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Intrinsic giant magnetoresistance due to exchange-bias-type effects at the surface of single-crystalline NiS₂ nanoflakes

Roman Hartmann,

Michael Högen,

Daphné Lignon

et al.

Abstract: The coexistence of different properties in the same material often results in exciting physical effects. At low temperatures, the pyrite transition-metal disulphide NiS2 hosts both antiferromagnetic and weak ferromagnetic orders,...

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Single-crystalline YIG flakes with uniaxial in-plane anisotropy and diverse crystallographic orientations

Hartmann,

Seema,

Soldatov

et al. 2024

APL Materials

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We study sub-micron Y3Fe5O12 (YIG) flakes that we produce via mechanical cleaving and exfoliation of YIG single crystals. By characterizing their structural and magnetic properties, we find that these YIG flakes have surfaces oriented along unusual crystallographic axes and uniaxial in-plane magnetic anisotropy due to their shape, both of which are not commonly available in YIG thin films. These physical properties, combined with the possibility of picking up the YIG flakes and stacking them onto flakes of other van der Waals materials or pre-patterned electrodes or waveguides, open unexplored possibilities for magnonics and for the realization of novel YIG-based heterostructures and spintronic devices.

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Single-crystalline YIG flakes with uniaxial in-plane anisotropy and diverse crystallographic orientations

Hartmann,

Seema,

Soldatov

et al. 2024

APL Materials

View full text Add to dashboard Cite

show abstract

Closing of the Mott gap near step edges in NiS2

Yasui,

Iwata,

Okazaki

et al. 2024

Phys. Rev. B

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Exotic surface magnetotransport phenomena in the antiferromagnetic Mott insulator NiS2

El-Khatib,

Mustafa,

Egilmez

et al. 2023

Phys. Rev. Materials

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Intrinsic giant magnetoresistance due to exchange-bias-type effects at the surface of single-crystalline NiS₂ nanoflakes

Abstract: The coexistence of different properties in the same material often results in exciting physical effects. At low temperatures, the pyrite transition-metal disulphide NiS2 hosts both antiferromagnetic and weak ferromagnetic orders,...

Cited by 3 publications

References 44 publications

Single-crystalline YIG flakes with uniaxial in-plane anisotropy and diverse crystallographic orientations

Single-crystalline YIG flakes with uniaxial in-plane anisotropy and diverse crystallographic orientations

Closing of the Mott gap near step edges in NiS2

Exotic surface magnetotransport phenomena in the antiferromagnetic Mott insulator NiS2

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About

Intrinsic giant magnetoresistance due to exchange-bias-type effects at the surface of single-crystalline NiS2 nanoflakes

Abstract: The coexistence of different properties in the same material often results in exciting physical effects. At low temperatures, the pyrite transition-metal disulphide NiS2 hosts both antiferromagnetic and weak ferromagnetic orders,...

Cited by 3 publications

References 44 publications

Single-crystalline YIG flakes with uniaxial in-plane anisotropy and diverse crystallographic orientations

Single-crystalline YIG flakes with uniaxial in-plane anisotropy and diverse crystallographic orientations

Closing of the Mott gap near step edges in NiS2

Exotic surface magnetotransport phenomena in the antiferromagnetic Mott insulator NiS2

Contact Info

Product

Resources

About

Intrinsic giant magnetoresistance due to exchange-bias-type effects at the surface of single-crystalline NiS₂ nanoflakes