Magnetic phase diagram and temperature dependent Ising-axis conversion of DyCu2 single crystals

Magnetocaloric effect in DyCu2

“…The calculated lattice parameters are shown in Table 1, in comparison with previous reports. The lattice parameters of the present sample match well with the previous reports [5,6]. A Rietveld analysis of the XRD data was done to determine the fraction of Dy present in the sample.…”

“…The transition shifts towards lower T with increasing field. The extrapolation of this data to H ¼ 0 gives the Neel temperature (T N ¼ 27.2 K) of the DyCu 2 sample, and it matches with previous reports [5,[12][13][14]. It may be noted that Fig.…”

“…[1]. However, it has also been reported that below 20 K, when magnetic field is applied along the a-axis of DyCu 2 single crystals, it undergoes successive field-induced transitions [15,16] from a commensurate AFM phase to an incommensurate AFM phase, and then to a ferromagnetic (FM) phase [5,17,18]. In the present results, the metamagnetic transition-like features are very much smeared out as compared to the single crystals [10,15,16].…”

Magnetocaloric effect and nature of magnetic transition in low dimensional DyCu2

“…Interestingly, magnetic properties of an orthorhombic RCu 2 compounds have been of great interest as these compounds are model systems for the investigation of an antiferromagnetic order caused by the bilinear exchange interactions of the trivalent rare earth (R 3+ ) ions in a strongly anisotropic magnetic system [10][11][12][13][14][15][16][17][18] . Among these, the DyCu 2 has gained much attention because it has been believed that the M -T graph exhibits distinct magnetic properties in different crystallographic directions 10 .…”

“…The magnetization and the susceptibility measurements have unveiled two step magnetization process at 4.2 K for DyCu 2 single crystals 10 . Loewenhaupt 2 when the magnetic field parallel to a crystallographic a -axis, in which the Dy 3+ spins are oriented 16 . Detailed description and conversion of the magnetic Ising-axis in a high magnetic field parallel to the c -direction was found by Hashimoto et.…”