Giant reversible magnetocaloric effect in orthorhombic GdScO3

Magnetic and magnetocaloric effect in a stuffed honeycomb polycrystalline antiferromagnet GdInO3

“…4(a). Compared to the other reported Gd 3+ -based compounds such as GdScO 3 , [44] GdFeO 3 , [79] and GdCoO 3 , [80] the field dependent magnetizations of GdInO 3 reveal a slower growth rate and much lower values at the same magnetic fields. Even at a low temperature of 2 K and a high magnetic field of 70 kOe, no satu-ration value of the magnetization was observed.…”

“…[5,14] Over the past few decades, attention has mostly been paid to cryogenic magnetocaloric materials with rare-earth based alloys and oxides, such as Gd 3 B 5 O 12 (B = Ga, Fe, Al), [15] RM 2 (R = rare earth elements, M = Al, Ni, Co), [16][17][18] RM (M = Zn, Ga), [19][20][21][22] RMX (M = Fe, Co, X = Al, Mg, C), [23,24] R 2 T 2 X (T = Cu, Ni, Co, X = In, Al, Ga, Sn, and so on), [25] R 60 Co 20 Ni 20 (R = Ho and Er), [26] La 1−x Pr x Fe 12 B 6 , [27] Gd 20 Ho 20 Tm 20 Cu 20 Ni 20 , [28] DyNiGa, [2] dual-phase HoNi/HoNi 2 composite, [29] RNO 3 (N = Al, Fe, Mn, Cr, and so on), [30][31][32][33][34][35][36][37] and R 2 M 2 O 7 . [38][39][40][41][42] In particular, recent studies have demonstrated that the Gd 3+ and Eu 2+ ion-based compounds display great MCE performances due to the large angular momentum of the half-filled 4f shell (4f 7 ) and negligible crystal electrical field (CEF) effect with J = S = 7/2, L = 0, with the representative compounds such as GdFeO 3 , [43] GdScO 3 , [44] GdCrO 3 , [45] GdAlO 3 , [46] GdVO 4 , [47,48] GdPO 4 , [49] GdBO 3 , [50] and EuTiO 3 . [51,…”

Viable Materials with a Giant Magnetocaloric Effect

“…A few contain precious Rh (e.g., FeRh [24,222,278,279] and Tb 3 Rh [270]). Many contain critical rare earth, such as Eu in Eu 2 In [140], EuTiO 3 [114,135,156,195] doped with Al [113], Cr [196], Mn [134], Co [151], Ni [119], Ba [157,206], Nb [110,170,195] and Eu in other compounds [133,232,240,251]; Gd in GdAlO 3 [158], GdFeO 3 [138,162], GdCrO 3 [183], GdCrO 4 -ErCrO 4 [202], GdScO 3 [117,124], Gd 2 CoMnO 6 [155], Gd 2 BaNiO 5 [152], GdCrTiO 5 [143], GdCo 2 B 2 [271], GdCoC 2 [171], RuSr 2 GdCu 2 O 8 [208], etc. ; Tb in TbFeO 3 [176], TbMn 2 O 5 [179], Tb 2 CoMnO 6 [132], Tb 5 Ge 2−x Si 2−x Mn 2x [255], Tb 4 Gd 1 Si 2.035 Ge 1.935 Mn 0.03 [197], etc.…”

Hysteretic Magnetoresistance in a Non-Magnetic SrSnO3 Film via Thermal Coupling to Dynamic Substrate Behavior

“…We explain this due to the antiferromagnetic transition in GSO. GSO has a distorted orthorhombic structure with an antiferromagnetic ordering below the Néel temperature T N = ∼2.6 K and is also shown to exhibit reversible magnetocaloric properties . An external magnetic field disfavors the antiferromagnetic state, so below T N , a magnetic field can induce a phase transition to the paramagnetic state.…”

“…GSO has a distorted orthorhombic structure with an antiferromagnetic ordering below the Neél temperature T N = ∼2.6 K 44 and is also shown to exhibit reversible magnetocaloric properties. 45 An external magnetic field disfavors the antiferromagnetic state, so below T N , a magnetic field can induce a phase transition to the paramagnetic state. Thus, the feature associated with the anomaly in the MR at T < 2.4 K can be attributed to the magnetic-field induced phase-transition between GSO's antiferromagnetic at low fields to its paramagnetic state at high fields.…”