Small angle neutron scattering investigation of transverse magnetisation in INVAR Fe65Ni35
We propose to characterise ferromagnetic clusters in INVAR (Fe65Ni35) using polarised neutrons on D33. These clusters have been previously glimpsed in conventional and polarised neutron diffraction experiments, and dynamical evidence for them has been recently established by us, using muon spin relaxation and ferromagnetic neutron spin-echo. We intend to establish the longitudinal and transverse magnetisations associated with these FM clusters - and compare with non-collinear models of ferromagnetism in these alloys. We will also measure non-invar Fe60Ni40 to establish whether the nature of the FM clusters is integral to the invar effect. In all, we will need 3 days of beamtime on D33 to complete these measurements
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STEWART John Ross; GIBLIN Sean; GOFF Jonathan P.; HONECKER Dirk; PRABHAKARAN Dharmalingam; TAYLOR Jonathan and WILLIS Toby. (2014). Small angle neutron scattering investigation of transverse magnetisation in INVAR Fe65Ni35. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-42-364