Magnetoresistance studies in narrow 5f band materials show that a giant drop of electrical resistance accompanies frequently field-induced reorientation of uranium magnetic moments in antiferromagnets. We show that a strong spin-dependent scattering, originating in the strong 5f hybridization with conduction electron states, is the most plausible origin of this effect, the magnitude of which by...

A sufficiently general thermally activated mechanism for extension of dislocations in some preferential direction was proposed. This mechanism comprises a necessary step of dislocation transformations that lead to blocking. The reasons for blocking of different types of dislocations in different materials are diverse. A new concept was developed concerning the possibility of thermally activated...

The present study was performed on two AlSi7Cu3 alloys with different Fe and Mn contents (standard alloy high-Fe/Mn alloy). evolution of microstructures during solidification the standard investigated by thermal analysis interrupted quenching test. effect content reaction sequence were studied. results show that increasing changes precipitation iron-intermetallic α-Al15 (Fe,Mn)3Si2 β-Al5FeSi, l...

Cluster chemistry of intermetallics with valence electron counts (VECs) in the range of 2.0-3.0 is intriguing. Lithiation of polar intermetallics in this VEC region is found to be an effective chemical route to produce new complex structures with different stability mechanisms. In this work, two new complex intermetallic structures have been discovered in the Ca-Li-Zn system: Ca12LixZn59-x and ...