Pier Giorgio Pedrazzini

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We report on results of electrical resistivity and structural investigations on the cubic modification of FeGe under high pressure. The long-wavelength helical order (T(C) = 280 K) is suppressed at a critical pressure p(c) approximately 19 GPa. An anomaly at T(X)(p) and strong deviations from a Fermi-liquid behavior in a wide pressure range above p(c)(More)
The aim of our study was to assess whether acute variations in portal vein Doppler sonographic parameters induced by administration of a single beta-blocker agent are predictive of the long-term effects of these drugs in the prevention of a first episode of variceal bleeding. In 30 patients with liver cirrhosis at high risk for variceal bleeding, duplex(More)
Between 1991 and 1998, 45 cirrhotic patients with hepatocellular carcinoma (1 or 2 lesions smaller than 5 cm) were treated either with percutaneous ethanol injection (26 patients) or with trans arterial chemoembolization (19 patients) in our Department. Percutaneous ethanol injection was performed on 37 nodules: mean diameter of 3.1 +/- 0.8 cm.(More)
Recent studies show that the non-Fermi liquid (NFL) behavior of MnSi and Fe spans over an unexpectedly broad pressure range, between the critical pressure pc and around 2pc. In order to determine the extension of their NFL regions, we analyze the evolution of the resistivity ρ(T ) ∼ A(p)T at higher pressures. We find that in MnSi the n = 3/2 exponent holds(More)
In this paper we report a comprehensive study of the magnetic susceptibility (χ), resistivity (ρ), and specific heat (CP), down to 0.5K of the cubic CeIn3−xSnx alloy. The ground state of this system evolves from antiferromagnetic (AF) in CeIn3 (TN = 10.2K) to intermediate-valent in CeSn3, and represents the first example of a Ce-lattice cubic non-Fermi(More)
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