Abstract
Magnetism plays an important role in superconductivity. Specifically, there must be a complete absence of magnetic ordering for superconductivity to occur. It is known that BaFe2As2 becomes superconducting only after being doped with nickel or cobalt. Doping lowers the Curie temperature of BaFe2As2 such that it never becomes magnetically ordered. Introducing nickel or cobalt changes the electron density, which has a strong effect on magnetization. We can learn about the transition into superconductivity by studying the magnetic properties of BaFe2As2 using Mössbauer spectroscopy. A duel sextet model is used to fit Mössbauer spectra as an improvement over single sextet fittings.
How to Cite
Stagg, L., (2013) “Magnetic Properties of BaFe2As2”, Capstone, The UNC Asheville Journal of Undergraduate Scholarship 26(1).
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