Short-range order in metals above the Curie temperature
Source abstract
Abstract
We use the dynamic spin-fluctuation theory to study spin-density correlations in ferromagnetic metals above the Curie temperature. We calculate the spatial spin-correlation function, dynamic susceptibility and local magnetic moment. The dynamic susceptibility is related to the energy-integrated scattering cross-section (effective moment). Calculated effective and local moments of Fe and Ni are found in good agreement with results of polarized neutron scattering experiment over a wide temperature range. We find that short-range order remains up to distances of about 6 Å in Fe and 8 Å in Ni at TTC = 1.1 and slowly decreases with temperature.
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Research context
OpenAlex topics: Magnetic properties of thin films · Rare-earth and actinide compounds · Magnetic and transport properties of perovskites and related materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Lomonosov Moscow State University 1 , Moscow 119991, Russia
Mikheev Institute of Metal Physics, UrB RAS 2 , Ekaterinburg 620108, Russia
Funding
Russian Foundation for Basic Research · Ural Branch, Russian Academy of Sciences · Federal Agency for Science and Innovation
References (24)
Show source-provided references
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