EPR in La 1 - x Ca x MnO 3 : Relaxation and bottleneck
EPR in La 1 - x Ca x MnO 3 : Relaxation and bottleneck
Shengelaya, A; Zhao, Guo-meng ; Keller, H; Müller, K. A
2000-03-01 00:00:00
Recent EPR and susceptibility measurements in La 1 - x Ca x MnO 3 support the existence of a bottleneck EPR regime up to 1000 K quantitatively. The EPR linewidth and electrical conductivity follow the same temperature dependence in the range of 250 to 650 K predicted by the small polaron hopping model. This indicates that spin-lattice relaxation in manganates is due to the relaxation of spins of e g Jahn-Teller polarons to the lattice.
http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.pngPhysical Review BAmerican Physical Society (APS)http://www.deepdyve.com/lp/american-physical-society-aps/epr-in-la-1-x-ca-x-mno-3-relaxation-and-bottleneck-RZ2otRIqus
EPR in La 1 - x Ca x MnO 3 : Relaxation and bottleneck
Recent EPR and susceptibility measurements in La 1 - x Ca x MnO 3 support the existence of a bottleneck EPR regime up to 1000 K quantitatively. The EPR linewidth and electrical conductivity follow the same temperature dependence in the range of 250 to 650 K predicted by the small polaron hopping model. This indicates that spin-lattice relaxation in manganates is due to the relaxation of spins of e g Jahn-Teller polarons to the lattice.
Journal
Physical Review B
– American Physical Society (APS)
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