Abstract
The electron spins of Ce3+ in 59Co2+:Ce3+:La2Mg3(NO3)12·24 H2O crystals may be cooled by the adiabatic demagnetization in such a manner, that the cross-relaxation occurs between the spins and the cobalt hyperfine sublevels. In this case the transitory inversion population can be achieved during relaxation at the transitions 1/2,m ↔ −1/2,m of cobalt ions with m < O. So the maser action is possible, caused by the direct conversion of the crystal lattice heat energy into coherent u.h.f. radiation.
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Reference
J.R. McColl, C.D. Jeffries, Phys. Rev. B 1, 2917 (1970).
M.P. Vaisfel’d, Fiz. Tverd. Tela 20,_ 124 (1978).
J.E. Geusic et al., Phys. Rev. 156, 343 (1967).
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© 1979 Springer-Verlag Berlin Heidelberg
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Vaisfel’d, M.P. (1979). Generation of Coherent Radiation from Heat Through Adiabatic Demagnetization of 59Co2+:Ce3+:La2Mg3(NO3)12·24 H2O Type Crystals. In: Kundla, E., Lippmaa, E., Saluvere, T. (eds) Magnetic Resonance and Related Phenomena. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-81344-3_270
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DOI: https://doi.org/10.1007/978-3-642-81344-3_270
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