Speromagnetism at the ferrimagnetic compensation point in an Fe64Er19B17 metallic glass — the head of a dandelion, or the spokes of a wheel?

Autor: Neil Cowlam, Andrew Wildes, Nourh A. Al-Senany
Rok vydání: 2013
Předmět:
Zdroj: Journal of the Korean Physical Society. 63:517-520
ISSN: 1976-8524
0374-4884
DOI: 10.3938/jkps.63.517
Popis: Magnetization and neutron scattering measurements with polarization analysis were made on an Fe64Er19B17 glass in an applied field of 2 Tesla to investigate its ferrimagnetic compensation at T comp = 112±2 K. The measurements prove that the glass has a non-collinear magnetic structure. The two non-spin flip cross-sections interchange between 100 K and 125 K, showing the magnetic structure flips at T comp . They are identical at 112 K where the forward limit of the spin flip crosssections, |dσ ±∓/dΘ| Q=0, was also greatest. We discuss these observations, and compare competing models for the magnetic structure of the glass at T comp .
Databáze: OpenAIRE
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