Article ID Journal Published Year Pages File Type
1814376 Physica B: Condensed Matter 2009 5 Pages PDF
Abstract
Electron spin resonance (ESR) experiments in YbRh2Si2 Kondo lattice (TK≃25K) at different field/frequencies (4.1≤ν≤34.4GHz) and H⊥c revealed: (i) a strong field dependent Yb3+ spin-lattice relaxation, (ii) a weak field and T-dependent effective g-value, (iii) a suppression of the ESR intensity beyond 15% of Lu-doping, and (iv) a strong sample and Lu-doping (≤15%) dependence of the ESR data. These results suggest that the ESR signal in YbRh2Si2 may be due to a coupled Yb3+-conduction electron resonant collective mode with a subtle field-dependent spins dynamic.
Related Topics
Physical Sciences and Engineering Physics and Astronomy Condensed Matter Physics
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