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We report temperature-dependent ac susceptibility () measurements on a high-quality single crystal of Tb 2 PdSi 3 , crystallizing in a AlB 2 -derived hexagonal structure. This compound is found to exhibit features attributable to quasi-low-dimensional magnetism at high temperatures and anisotropic spin-glass-like behavior at low temperatures (Ͻ10 K) with an unusually large frequency dependence of peak temperature in ac (T). This compound thus presents a novel situation in metallic magnetism, considering that the former phenomenon is normally encountered only among insulators, whereas the anisotropic spin-glass-like behavior, to our knowledge, has not been known in stoichiometric intermetallic compounds.

The feasibility and first results of a near sensor digitalization of fluxgate signals (digital fluxgate magnetometer) are presented. Applying the usual magnetometer electronics we have substituted the analogue section by a digital processing unit (ow). The 2f , signal is digitized at its second harmonic and mean values are online phase-sensitively calculated. Based on this development we present a completely redesigned magnetometer experiment for applications on planetary surfaces. Sensor and electronics including serial interface have to be in one housing, its weight is less than 150 g and the number of electrical connections is limited to four (power lines + serial link). Applications for the digital magnetometer on Earth are also discussed.