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Abstract:
CeCu2Ge2 orders antiferromagnetically, T(N)approximately4K, and gamma(T)
approximately 200 mJ/K2 mole near 0.5K and P=0. A pressure of 9.5 kbar
has no measurable effect on T(N); reduces slightly the specific-heat
anomaly at T(N); and reduces slightly gamma(T) below 0.7K. These
effects of pressure are in striking contrast to the much stronger
effects on other heavy-fermion compounds, e.g., CeAl3, URu2Si2 and
CeCu2Si2.