Affiliation:
1. II. Physikalisches Institut, Technische Hochschule Darmstadt, Germany
Abstract
Abstract
ESR measurements of Eu2+ (concentration ≦ 1%) in Ca- and Yb-metal in the temperature range from 5 °K to 30 °K at microwave frequencies of 35 GHz and 9.6 GHz are reported. In Ca a “bottleneck” was observed, whereas in Y b the resonance condition is determined by the "dynamical effect". By adding Ca-impurities to Yb the influence of the dynamical effect was lowered. The measurements can be adequately described by the formulas of Hasegawa, yielding an exchange integral for Eu2+ in Yb of J =+ 0.09 eV.
Subject
Physical and Theoretical Chemistry,General Physics and Astronomy,Mathematical Physics
Cited by
12 articles.
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