Solvothermal Synthesis and Interfacial Magnetic Interaction of beta-FeSe/SrTiO(3-x)Nanocomposites
: 88 : 2020.11.03 00:00
CHEMISTRYSELECT
Hur, Nam Hwi 2020.08.14
Solvothermal Synthesis and Interfacial Magnetic Interaction of beta-FeSe/SrTiO(3-x)Nanocomposites [ 1 ]‎ Sogang Univ, Dept Chem, Seoul 04107, South Korea [ 2 ]‎ Seoul Natl Univ, Dept Phys & Astron, Seoul 08826, South Korea Hybridization of nanomaterials, combined by interfacial fusion, have drawn tremendous interests because of their novel properties induced by structurally matched interfaces. Here we report a solvothermal route that can synthesize beta-FeSe/SrTiO(3-x)composites made of beta-FeSe nanosheets (NSs) and SrTiO(3-x)nanoparticles (NPs). Various spectroscopic data such as XRD, SEM, and TEM with elemental maps confirm the formation of nanocomposite architecture. Electron microscopy images of beta-FeSe/SrTiO(3-x)show that small SrTiO(3-x)NPs in the cuboidal form are firmly bound to a sizable beta-FeSe sheet with a thickness of several nanometers. The beta-FeSe/SrTiO(3-x)composite shows paramagnetic, which was determined using a SQUID magnetometer. The ferromagnetic property of individual FeSe NPs appears to be suppressed by interfacial interaction between beta-FeSe and SrTiO3-x, clearly showing the presence of the proximity-induced effect in the nanocomposites. https://chemistry-europe.onlinelibrary.wiley.com/doi/abs/10.1002/slct.202000871

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