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We report the first ESR observation of Nd3+ in a metal: cubic LaRh2. The resonance arises from a Γ6 ground state and exhibits hyperfine splitting at low temperature, allowing for positive identification. Above about 12 K, the ESR linewidth increases exponentially with temperature. We attribute this increase to the resonance phonon relaxation process involving the first excited state at 125±10 K.

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©1978 American Physical Society

Recommended Citation

S. A. Dodds, J. Sanny, and R. Orbach, "ESR and spin-lattice relaxation of Nd3+ in a metallic host: LaRh2," Phys. Rev. B 18, 1016-1019 (1978).

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