Polarized neutron diffraction study of the spin structure in MnO and FePt@MnO heterodimer nanoparticles
Magnetic nanoparticles (NPs) have attracted much attention for decades. Particularly interesting are NPs consisting of an antiferromagnetic (AF) material. A fascinating novel type of nanomagnet is a 'heterodimer nanoparticle' being composed of two different NPs in close contact. We follow an approach, where a ferromagnetic (FM) NP is magnetically stabilized by an AF particle by exchange bias interaction. We focus on FePt@MnO heterodimers consisting of a FM FePt particle (ca. 5nm) in contact to an AF MnO particle (ca. 15nm). The proposed experiment aims to study the spin structure inside single MnO NPs and inside the MnO subunit of FePt@MnO heterodimers using polarized neutron diffraction. We focus in particular on the AF order parameter as function of temperature, and in dependence of the MnO particle size and strength of exchange coupling to the FePt unit.
Please note that you will need to login with your ILL credentials to download the data.
Download DataThe recommended format for citing this dataset in a research publication is in the following format:
SUN Xiao; BRUECKEL Thomas; KLAPPER Alice; PETRACIC Oleg and WILDES Andrew. (2013). Polarized neutron diffraction study of the spin structure in MnO and FePt@MnO heterodimer nanoparticles. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.9-10-1333
ILL has partnered with DataCite as the registration agency
for data persistent identifiers.