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Measurement of the magnetization up to H = 30 T at 4.2 K, temperature dependence of magnetic susceptibility and effect of pressure on the electrical resistivity on CeScGe are presented. These results indicate that CeScGe is antiferromagnetic with TN = 46 K. The Néel temperature TN decreases with increasing pressure with the rate of dTN/dP= -0.56K/kbar.

Measurement of the magnetization up to H = 30 T at 4.2 K, temperature dependence of magnetic susceptibility and effect of pressure on the electrical resistivity on CeScGe are presented. These results indicate that CeScGe is antiferromagnetic with TN = 46 K. The Néel temperature TN decreases with increasing pressure with the rate of dTN/dP= -0.56K/kbar.

A low-matrix-ratio [Nb.sub.3]Al wire is fabricated and the effects of the rapid heating/quenching (RHQ) current and the area reduction (AR) after the RHQ process are studied. The studies have shown that the optimum RHQ current to obtain high [J.sub.c] is the current at the higher edge of the plateau region and the AR process has affected the transformation process that has determined the quality of the A-15 phase.

The synthesis of new [Nb.sub.3]Al wires with high critical current density and improved fabrication parameters, such as the heat reduction ration is being discussed. The wires exhibit conducting properties and hence can be widely used for future accelerator magnets.

The study describes the characteristics of the round and extracted strands of [Nb.sub.3]Al wires Rutherford cable with copper stabilizer, which exhibits very low packing factor. The strands can be used as future high field accelerator magnets due to the great fluctuation in their magnetization.

A study is conducted to assess the superconductivity of two La-based ternary germanides La3Rh2Ge2 and La3Pt2Ge2. The experiments to determine the magnetic and electrical transport measurements are performed and the results are discussed.

The microstructure and performance of DRHQ processed Nb3Al tape with internal Ag stabilizers are investigated. The results support that the staking faults should be dominant as the effective pinning center for DRHQ processed Nb3Al conductors.

Reporting a new fabrication technique for Nb/Al-Ge precursor wires, using gas-atomized Al-Ge alloy powders is discussed. It is concluded that the XRD analysis, Nb-Al-Ge ternary supersaturated bcc phase is formed with A15 and Nb5(Al,Ge)3 phases in the tape specimens with 0.2 mm in thickness, when the tape specimens are RHQ-treated.

Thermoremanent magnetization using single crystal Bi2212 shows an anomalous dispersive behavior in AC susceptibility when kept below 20 K. The analysis of decay in DC magnetization describes a drastic change in the activation energy of vortex pinning.

Nanocrystalline Pr2Co14B-based films are deposited on two types of substrates at 600 °C by radio frequency magnetron sputtering. All samples are composed of a hard magnetic phase Pr2Co14B and a small amount of a soft magnetic phase Co3B. The film sputtered on the thermally oxidized silicon wafer has a more dispersed distribution of Co3B and a smaller average grain size of Pr2Co14B than that deposited on alumina substrates; therefore, the former film shows a stronger intergrain exchange coupling action (IECA) than the latter film. In addition, the coercivity (8.6 kOe) and ratio (0.68) of remanence to saturation magnetization of the film sputtered on thermally oxidized silicon wafers are considerably higher than those (0.4 kOe and 0.56) of the film deposited on alumina substrates. In the case of the film sputtered on alumina substrates, the size of most magnetic domains is comparable to the average grain size of magnetic phases, implying the occurrence of a weak IECA. However, in the case of the film sputtered on thermally oxidized silicon wafers, the size of most magnetic domains is considerably larger than the mean grain size of magnetic phases, indicating the occurrence of a strong IECA. The effect of the IECA on the coercivity of specimens is determined by analyzing the temperature dependence of coercivity in the framework of a nucleation model. [ABSTRACT FROM AUTHOR]

A 100-nm-thick Fe50Pt50 film with high coercivity was fabricated by magnetron sputtering. On introducing a Cr top/bottom layer, the ordering temperature (Tor) of the film decreased considerably from 500 to 380 °C. On introducing both Cr top/bottom layer and a 0.2-nm-thick Cu interlayer, the Tor decreased even further to 340 °C. During the annealing process, the number of Cr atoms diffused into the Fe50Pt50 layer increased. This increased the Fe diffusivity, lowering the Tor in the process. The diffusion of the additive and the effects of annealing were verified by selected-area electron diffraction observations and by investigating the temperature dependence of the magnetization. The superlattice structure of the ordered Fe50Pt50 film containing Cr and Cu additives was confirmed by the transmission electronic microscopy. Because of the Cr and Cu additives, the average grain size in the ordered Fe50Pt50 film increased slightly; however, the coercivity of the ordered Fe50Pt50 film is improved considerably. [ABSTRACT FROM AUTHOR]

We present the results of the magnetic susceptibility, magnetization, specific-heat, and electrical resistivity measurements on rare-earth iridium germanides Ce3Ir2Ge2 and La3Ir2Ge2, crystallizing in the La3Ni2Ga2-type orthorhombic crystal structure. The results reveal that Ce3Ir2Ge2 is a Kondo-lattice system showing characteristic -ln T dependence of magnetic resistivity at high temperatures, while there does not exist evident sign of long-range magnetic ordering at least down to 1.8 K. Instead, a short-range magnetic correlation occurs at about 3.5 K. The La-based compound was found to be a type-II superconducting material with a relatively high critical temperature TC=4.7 K. A number of the relevant parameters, such as lower critical field, upper critical field, coherence length, penetration depth, and Ginzburg–Landau parameter, were estimated for the La3Ir2Ge2 sample. [ABSTRACT FROM AUTHOR]

We present the results of the magnetic susceptibility, magnetization, specific-heat, and electrical resistivity measurements on rare-earth iridium germanides Ce3Ir2Ge2 and La3Ir2Ge2, crystallizing in the La3Ni2Ga2-type orthorhombic crystal structure. The results reveal that Ce3Ir2Ge2 is a Kondo-lattice system showing characteristic -ln T dependence of magnetic resistivity at high temperatures, while there does not exist evident sign of long-range magnetic ordering at least down to 1.8 K. Instead, a short-range magnetic correlation occurs at about 3.5 K. The La-based compound was found to be a type-II superconducting material with a relatively high critical temperature TC=4.7 K. A number of the relevant parameters, such as lower critical field, upper critical field, coherence length, penetration depth, and Ginzburg–Landau parameter, were estimated for the La3Ir2Ge2 sample. [ABSTRACT FROM AUTHOR]

The formation, as well as the structure-property relationship of the various nanocrystalline [Pr.sub.2][Co.sub.14]B-based hard magnetic films are discussed. The variations observed in the magnetic domains and the inergrain exchange coupling action observed in the different films spluttered on different surfaces are also explained.

The article studies the enhancement in ordering of [Fe.sub.50][Pt.sub.50] film caused by Cr and Cu additives using transmission electronic microscopy. Results reveal that uperlattice structure of the ordered of [Fe.sub.50][Pt.sub.50] film containing Cr and Cu additives was confirmed by the transmission electronic microscopy.

Systematic magnetic measurements are performed on a well-annealed [U.sub.2]CuSi sample, which is crystallized in the tetragonal [alpha]-Th[Si.sub.2]-type structure. The studies have shown that the [U.sub.2]Cu[Si.sub.3] sample is classified as a nonmagnetic atom-disorder spin glass.

A field-induced magnetic anisotropy change under high pressure is analyzed for the La[Fe.sub.11.5][Si.sub.1.5] compound. The pressure effect is seen in the entropy plateau, thus demonstrating the effectiveness of high pressure in modifying the entropy of La[Fe.sub.11.5][Si.sub.1.5].

The effects of the magnetic susceptibility, magnetization, specific-heat, and electrical resistivity measurements are described on rare-earth iridium germanides Ce3Ir2Ge2 and La3Ir2Ge2, crystallizing in the La3Ir2Ge2-type orthorhombic crystal structure. The results revealed that Ce3Ir2Ge2 is a Kondo-lattice system while a number of the relevant parameters, such as lower critical field, and upper critical field coherence length were estimated for the La3Ir2Ge2 sample.