Field and sample history dependence of the compensation temperature in Sm0.97Gd0.03Al2

Repeated magnetic compensation behavior in the rare-earth alloyNd0.75Gd0.25Rh3B2Kulkarni1, Vaidya2, Rakhecha3 et al. 2008Phys. Rev. BSelf Cite7630View full textAdd to dashboardCite

“…One probable reason could be the rarity of the low field magnetization measurements at stoichiometries corresponding to zero magnetization in that era. Magnetic compensation and field induced spin-orbit reorientation phenomenon for Sm 3+ ions has been much investigated in recent years 7,8,[10][11][12][13]18 in Gd doped SmAl 2 matrix (µ = 0.2 µ B /f.u., T c ~ 125 K). The field induced spin-orbit reorientation phenomenon in Sm based alloys has to overcome strong magneto-crystalline anisotropy effects at the Sm 3+ ion 8,12,18 .…”

“…Magnetic compensation and field induced spin-orbit reorientation phenomenon for Sm 3+ ions has been much investigated in recent years 7,8,[10][11][12][13]18 in Gd doped SmAl 2 matrix (µ = 0.2 µ B /f.u., T c ~ 125 K). The field induced spin-orbit reorientation phenomenon in Sm based alloys has to overcome strong magneto-crystalline anisotropy effects at the Sm 3+ ion 8,12,18 . In the present Nd 0.75 Gd 0.25 Rh 3 B 2 alloy, the reorientation of Nd and Gd magnetic moments on going across the temperature region of T z3 has to overcome moderate magneto-crystalline anisotropy effects (in the basal plane) associated with Nd 3+ ions 5 .…”

Magnetic response in the vicinity of magnetic compensation: a case study in spin ferromagnetic Sm1 −xGdxAl2intermetallic alloys

“…The polycrystalline Sm 1−x Gd x Al 2 samples [x = 0.01-0.06] are the same as used in our previous reports [9,[21][22][23][24][25][26]. Magnetization measurements were carried out as a function of field (up to a maximum field of 70 kOe) in the temperature range 5-180 K in a SQUID-vibrating sample magnetometer (SVSM, Quantum Design Inc., USA).…”

“…Figure 2 shows the 'Adachi-Ino (AI)' [2,26] remnant magnetization curves. As aforesaid each remnant magnetization curve was obtained point by point, by first HFC (70 kOe) of the sample and then dropping the magnetic field to zero at each temperature.…”

“…We also carried out similar studies in several other judiciously selected stoichiometries amongst other R 1−x R x Al 2 alloys [25][26][27]. In the present work we focus on M-H loops in the polycrystalline Gd-substituted Sm 1−x Gd x Al 2 alloys that are known to undergo magnetic compensation [x = 0.01, 0.02, 0.03], and also some which do not [x = 0.04 and 0.06] [9].…”