Intrinsic spin resonance in iron pnictides
https://doi.org/10.26907/mrsej-19306
Abstract
We report on ESR measurements in polycrystalline LaFeAsO and PrFeSbO and in single crystalline Mn-doped Ba(Fe0.975Mn0.025)2As2. The absorption spectrum can be described by a broad resonance line with Lorentzian lineshape. The intensity of the resonance absorption follows the temperature dependence of the dc-susceptibility and mirrors the spin-density wave anomaly, while the linewidth roughly agrees with the electrical resistivity.
Supporting agencies: We acknowledge nancial support by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) { Projektnummer 107745057 { TRR 80 \From Electronic Correlations to Functionality" (Augsburg, Munich, Stuttgart).
About the Authors
H. -A. Krug von Nidda
Experimentalphysik V, Center for Electronic Correlations and Magnetism, Institute for Physics, University of Augsburg
Russian Federation
Russian Federation
D-86135 Augsburg
M. Hemmida
Experimentalphysik V, Center for Electronic Correlations and Magnetism, Institute for Physics, University of Augsburg
Russian Federation
Russian Federation
D-86135 Augsburg
S. Kraus
Experimentalphysik V, Center for Electronic Correlations and Magnetism, Institute for Physics, University of Augsburg
Russian Federation
Russian Federation
D-86135 Augsburg
N. Pascher
Experimentalphysik V, Center for Electronic Correlations and Magnetism, Institute for Physics, University of Augsburg
Russian Federation
Russian Federation
D-86135 Augsburg
J. Deisenhofer
Experimentalphysik V, Center for Electronic Correlations and Magnetism, Institute for Physics, University of Augsburg
Russian Federation
Russian Federation
D-86135 Augsburg
A. Loidl
Experimentalphysik V, Center for Electronic Correlations and Magnetism, Institute for Physics, University of Augsburg
Russian Federation
Russian Federation
D-86135 Augsburg
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Review
For citations:
Krug von Nidda H.-., Hemmida M., Kraus S., Pascher N., Deisenhofer J., Loidl A. Intrinsic spin resonance in iron pnictides. Magnetic Resonance in Solids. 2019;21(3):19306 (8 pp.). https://doi.org/10.26907/mrsej-19306
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