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Antiferromagnetic resonances in twinned EuFe2As2 single crystals
Physical Review B: Condensed Matter and Materials Physics. 2022. Vol. 106. No. 2. Article 024412.
Golovchanskiy I. A., Abramov N. N., Vlasenko V. A., Pervakov K., Shchetinin I. V., Dzhumaev P. S., Emelyanova O. V., Baranov D. S., Kalashnikov D. S., Polevoy K. B., Pudalov V., Stolyarov V. S.
In this paper, we report the results of magnetic resonance spectroscopy of EuFe2As2 single crystals. We
observe magnetic resonance responses, which are attributed to antiferromagnetic resonances of the Eu sublattice
with orthorhombic crystal structure and with different orientations of twin domains relative to the external field.
We confirm the validity of the recently proposed spin Hamiltonian with anisotropic Eu-Eu exchange interaction
and biquadratic Eu-Fe exchange interaction.
Publication based on the results of:
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Superconducting proximity junctions based on topological insulators are widely believed to harbor Majorana-like bound states. If so, the static current phase relationship (CPR) should have a 4π-periodic component. It is then usually assumed that the static CPR can be extended to treat dynamic, voltage-biased, experiments and can justify the suppression of the first phase-lock-in microwave ...
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