The electrical resistivity of PrB6 contains a term arising from the temperature dependent crystal field level populations by 4f electrons which our measurements indicate is equally made up of aspherical Coulomb and exchange scattering of conduction electrons. © 1977.

The temperature dependent resistivities of ScH2 and ScD2 differ by an Einstein term with θE = 1600 K and θE/√2, respectively. © 1975.

Small single crystals of NbGe2 were grown by the hydrogen reduction of potassium-containing oxides. Measurements of electrical resistivity and superconductivity are given. © 1978.

We have measured the magnetic susceptibility of Nb3Sb, a low density of states A-15 compound. The measurements were performed on a large single crystal over the temperature range 4 to 294 K. The susceptibility is found to be small with a negative temperature derivative over most of this interval, the total variation being 7%. © 1979.

Heat capacity measurements from 150 to 300 K were carried out on a single crystal of La2CuO4+x synthesized by subjecting an La2CuO4 crystal to 3 kbar oxygen pressure at 575 °C. The data reveal three small (about 1%) anomalies at temperatures (T) of 206, 222 and 259 K. The first two are tentatively attributed to CuO inclusions in the crystal. The third is observed on warming, but not on cooling, and is attributed to the previously documented first-order transition from the orthorhombically distorted K2NiF4 structure to a low T mixture of nearly stoichiometric La2CuO4 and oxygen-rich superconducting La2CuO4+y (y>x). The size of the anomaly at 259 K is about one-seventh of that observed previously for a single crystal of La2CuO4 at the second-order tetragonal-to-orthorhombic phase transition temperature of about 530 K. Magnetization measurements from 5 to 300 K and from 50 G to 50 kG are also reported for the La2CuO4+x crystal. The normal state magnetic susceptibility χ(T) is quite anisotropic, with χ(T) for H perpendicular to the CuO2 layers (χc) in good agreement with previous data on a different, but similarly prepared, crystal. The anisotropy in χ is nearly independent of T from 40 to 300 K and the magnitude of χc-χab per CuO2 layer is very similar to that at high T in YBa2Cu3O6.1, La2CuO4, Sr2CuO2Cl2 and La2-xMxCuO4 (MSr, Ba). © 1992.

Magnetism in the reentrant superconductor ErRh4B4 has been studied by neutron scattering as a function of an applied magnetic field. For a temperature of 1.69 K long-range ferromagnetism is found in fields higher than 1 kOe. Considerable hysteresis is found in the neutron scattering intensity vs magnetic field curve and long-range order with a small Er moment remains when the field is reduced to small values. © 1980, All rights reserved.

We report the temperature dependence of the magnetic susceptibility of single crystals of PrB4, GdB4, TbB4, HoB4 and TmB4, both parallel and perpendicular to the tetragonal c-axis. We also present low temperature resistance measurements on crytals of GdB4 through TmB4. Two magnetic phase transitions are found for TbB4, DyB4, HoB4 and TmB4. For the latter two compounds, the lower transitions appear to be first order. For HoB4, we have measured the low temperature specific heat. The lower transition in TbB4 and HoB4 is rapidly depressed upon dilution with YB4. © 1981.

Anisotropic behavior of the normal state thermoelectric power, electrical resistivity, and magnetic susceptibility is reported for the superconducting Co1-xNixZr2 system. © 1982 Plenum Publishing Corporation.