Specific heat and magnetization of RMn2(H,D)2

Specific heat of YMn2H and HoMn2H

“…3. The relevant data from Tb-and Er-hydrides [6,10] are also included. Although no straightforward explanation is apparent for the x dependence, the data showed a breaking up at x = 2.0 into two hydrogen concentration regions.…”

“…The neutron scattering data of some Tb-and Erbased hydrides showed that T N increases largely with increasing H-content [3,4]. Magnetization and specific-heat measurements have been performed on RMn 2 (H,D) x samples [5,6]. In this paper, we present the specific-heat results for Y-and Ho-based hydrides especially those with a large hydrogen concentration x > 2.0.…”

A thermodynamically consistent model of magneto-elastic materials under diffusion at large strains and its analysis

“…If the metal is ferromagnetic, the resulted hydride may be antiferromagnetic, as documented experimentally e.g. in [42,51]. Of course, this phase transformation is in addition to the ferro-to-paramagnetic phase transformation in the parent metal phase when temperature rises the Curie point.…”

“…Also specific heat can be substantially influenced by the concentration of hydrogen, as experimentally documented in the case of the hydrogenization/deuterization of some intermetalics e.g. in [51]. Although mathematical models of hydrogenation have been formulated and studied specifically for hydrogen storage with [15,48] or without [5,6] strain effects these models do not take into account large strains and the interaction between diffusant and magnetization, see also [27,28,29,30,31].…”