|
|
Sereni, J. G., G. Nieva, J. G. Huber, E. Braun, F. Oster, E. Bruck, B. Roden, and D. Wohlleben. "Evidence for 4f-instability of dilute terbium in thorium." Journal of Magnetism and Magnetic Materials 63-64 (1987): 597–599.
Abstract: We have measured the specific heat of dilute Th1?xTbx alloys (0.44 < x < 2.15 a/o), which rises linearly between 0.4 and 0.9 K with a slope of ?C/T ? 450 mJ/K2molTb followed by a Schottky anomaly with a maximum near 3.8 K. The high temperature ??T product was found to be 4% lower than that of Tb3+. The resistivity shows no minimum at low temperatures. Discussion is made in terms of non-integral valence of Tb.
|
|
