Electronic and Magnetic Characterization of Epitaxial CrBr3 Monolayers on a Superconducting Substrate

Tutkimustuotos: LehtiartikkeliArticleScientificvertaisarvioitu

Abstrakti

The ability to imprint a given material property to another through a proximity effect in layered 2D materials has opened the way to the creation of designer materials. Here, molecular-beam epitaxy is used for direct synthesis of a superconductor–ferromagnet heterostructure by combining superconducting niobium diselenide (NbSe2) with the monolayer ferromagnetic chromium tribromide (CrBr3). Using different characterization techniques and density-functional theory calculations, it is confirmed that the CrBr3 monolayer retains its ferromagnetic ordering with a magnetocrystalline anisotropy favoring an out-of-plane spin orientation. Low-temperature scanning tunneling microscopy measurements show a slight reduction of the superconducting gap of NbSe2 and the formation of a vortex lattice on the CrBr3 layer in experiments under an external magnetic field. The results contribute to the broader framework of exploiting proximity effects to realize novel phenomena in 2D heterostructures.

AlkuperäiskieliEnglanti
Artikkeli2006850
Sivumäärä7
JulkaisuAdvanced Materials
Vuosikerta33
Numero23
Varhainen verkossa julkaisun päivämäärä3 toukokuuta 2021
DOI - pysyväislinkit
TilaJulkaistu - kesäkuuta 2021
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

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