The Hall resistivity and magnetization have been investigated in the ferromagnetic state of the bilayered manganite La2−2xSr1+2xMn2O7 (x=0.36). The Hall resistivity shows an increase in both the ordinary and anomalous Hall coefficients at low temperatures below 50K, a region in which experimental evidence for the spin glass state has been found in a low magnetic field of 1mT. The origin of the ...

The electrical resistivity r of three-dimensional amorphous superconducting films a-Mo3Si and a-Nb3Ge is measured in magnetic fields m0H up to 30 T. At low temperatures and at magnetic fields above the upper critical field Hc2, r is temperature independent and decreases as a function of magnetic field. This field dependence is consistent with localization theory in the high-field limit @m0H@\/(...

the effect of temperature on the adsorption of heavy metals on not only natural bulk clay, but also for the individual phases that composed the bulk clay sample, was investigated. combined adsorption- sequential extraction analysis (casa) for pb, cu, zn and cd were conducted under various temperatures that ranged from 150c to 550c. as a result, it was found that heavy metals adsorption for bulk...

We have measured the thermal conductivity along the c-axis, κ∥c, parallel to ferromagnetic spin-chains of single crystals of the S = 1/2 quasi-one-dimensional spin system CsCuCl3 in magnetic fields up to 14 T, in order to investigate the thermal conductivity due to spins, κspin, and the change of thermal conductivity corresponding to the change of the spin state. In the temperature dependence o...

In a two-dimensional electron gas system, the Hall resistance at low temperatures and in strong magnetic field has plateaus as a function of the number of electrons that can be linked to natural constants as RH = h/ie. Due to the high precision of the measurement, the quantization of the Hall resistance is now used as the primary standard of resistance. The paper describes the use of quantum Ha...

We have studied the effect of the interface structure on the exchange bias in the FeF2-Fe system, for FeF2 bulk single crystals or thin films. The exchange bias depends very strongly on the crystalline orientation of the antiferromagnet for both films and crystals. However, the interface roughness seems to have a strong effect mainly on the film systems. These results indicate that the exchange...