Effect of magnetic interphase boundaries on the electrical resistivity in metallic metamagnets

Pressure-dependent electrical resistivity ofRCo2compounds(R= rare earth)

“…Neutron diffraction measurements show that ordering of the d subsystem and subsequently long-range order of the R subsystem vanish for higher concentrations of Y. 53 A more detailed study confirmed the presence of both long-range and short-range magnetic order above the ordering temperature for compounds with xϷx c . 54 The rise in spin fluctuations when approaching the IEM may serve as a source for shortrange correlations.…”

Anomalous transport in itinerant metamagnets with structural disorder

“…Another unusual feature in the transport properties of these alloys is strong enhancement of residual resistivity on approach to the ferromagnetic phase boundary. This latter feature has been observed in number of alloys: in ðY 1Àx Er x ÞCo 2 [2], ðY 1Àx Ho x ÞCo 2 , [3], ðY 1Àx Tb x ÞCo 2 and ðY 1Àx Dy x ÞCo 2 [4]. Moreover, strong residual resistivity enhancement has been found in alloy and even in clean ferromagnetic systems near to magnetic quantum critical point (QCP) [5].…”

High field magnetic properties in single crystal Nd3Co

“…[1][2][3][4][5] In our previous study 6 ͑of electrical resistivity, magnetic susceptibility and specific heat measurements͒, it was reported that Nd 3 Co has three magnetic transitions at low temperatures ͑spin reorientation temperatures T R1 ϭ8 K and T R2 ϭ13 K, and Néel temperature T N ϭ25 K͒. We also reported two field induced metamagnetic transitions along the a axis ͑transition fields of H a1 ϭ1.8 T and H a2 ϭ4.5 T͒ and one transition along the b axis ͑transition field H b ϭ1.9 T͒ below 7 T at 1.5 K. We proposed a canted magnetic structure to explain the complex magnetization process in Nd 3 Co. 6 However, a field of 7 T is not enough to achieve the saturation moment.…”