Magnetic, magnetocaloric and magnetoresistance properties of Nd7Pd3
|Title||Magnetic, magnetocaloric and magnetoresistance properties of Nd7Pd3|
|Publication Type||Journal Article|
|Year of Publication||2009|
|Authors||Singh NK, Kumar P, Mao Z, Paudyal D, Neu V, Suresh KG, Pecharsky VK, Gschneidner KA|
|Journal Title||Journal of Physics-Condensed Matter|
Magnetic, magnetocaloric and magnetoresistance properties of the intermetallic compound Nd7Pd3 have been investigated. It exhibits a first-order magnetic phase transition at its ferromagnetic ordering temperature (T-C = 34 K). Just above the T-C, the magnetization isotherms exhibit a metamagnetic transition from the paramagnetic to a ferromagnetic state. In the immediate vicinity of T-C, a field change of only 10 kOe leads to the giant magnetocaloric effect of 13 J mol(-1) K-1. For a field change of 50 kOe a large magnetoresistance of similar to 21% is observed near T-C. First-principles electronic structure calculations indicate that the first-order phase transition in Nd7Pd3 may originate from the peculiar nature of the density of states near the Fermi level.
|URL||<Go to ISI>://000271090200025|