Anisotropic effect of a magnetic field on the neutron spin resonance in FeSe
| Autor: | Y. Chen, Collin Broholm, Tong Chen, Bin Gao, Yiming Qiu, Igor Radelytskyi, David W. Tam, Masaaki Matsuda, Astrid Schneidewind, Songxue Chi, Karel Prokes, Pengcheng Dai |
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| Rok vydání: | 2020 |
| Předmět: |
neutron diffraction
magnetic fields Physics Superconductivity Strongly Correlated Electrons (cond-mat.str-el) Condensed matter physics FOS: Physical sciences Resonance 02 engineering and technology Electron 021001 nanoscience & nanotechnology 7. Clean energy 01 natural sciences Article Inelastic neutron scattering Magnetic field Condensed Matter - Strongly Correlated Electrons 0103 physical sciences Quasiparticle ddc:530 Neutron 010306 general physics 0210 nano-technology Spin (physics) |
| Zdroj: | Physical review / B 101(14), 140504 (2020). doi:10.1103/PhysRevB.101.140504 Phys Rev B |
| ISSN: | 2469-9969 2469-9950 |
| DOI: | 10.1103/physrevb.101.140504 |
| Popis: | We use inelastic neutron scattering to study the effect of a magnetic field on the neutron spin resonance (Er = 3.6 meV) of superconducting FeSe (Tc = 9 K). While a field aligned along the in-plane direction broadens and suppresses the resonance, a c-axis aligned field does so much more efficiently, consistent with the anisotropic field-induced suppression of the superfluid density from the heat capacity measurements. These results suggest that the resonance in FeSe is associated with the superconducting electrons arising from orbital selective quasi-particle excitations between the hole and electron Fermi surfaces. Comment: To be published as a Rapid Communication in Physical Review B |
| Databáze: | OpenAIRE |
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