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Polycarbonate templates of (30±1) µm thickness containing cylindrical etched-track nanochannels of (500±50) nm diameter were used for electrodeposition of Ni nanowires. Using 10 4 channels per cm 2 , the most favorable deposition potential of -1.0 V was determined in a potentiostatic mode by varying the deposition potential with respect to an Ag/AgCl reference electrode over a range between -0.1 V and -1.5 V. The deposition efficiency at -1.0 V was estimated around 10 %. The resulting single wires had a resistance around 200 Ω and showed an anisotropic magnetoresistance (AMR) effect of 1 %, applicable to directionally sensitive magnetic field sensors.

The double differential cross section of low momentum kaons (# 0.3 GeV͞c) from p 1 C collisions at subthreshold bombarding energies has been for the first time measured by the use of the CLAMSUD magnetic spectrometer installed at the CELSIUS storage ring. Invariant cross sections extracted from the data show a source rapidity shifted below the nucleon-nucleon rapidity, in agreement with the existence of multistep processes in the K 1 production cross section. The total cross section of the inclusive reaction 12 C͑p, K 1 ͒ at 1.2 GeV was extracted and compared with recent data systematics as a function of the proton bombarding energy. [S0031-9007 (98)06266-8] PACS numbers: 25.40.Ve, 25.40.QaWhile the production of pions at subthreshold energies, i.e., at energies lower than the threshold for free nucleonnucleon (NN) collisions, has been extensively studied both in proton-nucleus [1] and in nucleus-nucleus [2] collisions, only recently have the first data on the production of K 1 from proton-nucleus collisions in the subthreshold regime been published [3].