Magnetic-entropy change in Mn1.1Fe0.9P0.7As0.3–xGex

Microstructure, magnetic and magnetocaloric properties of Fe2–x Mn x P0.4Si0.6 alloys

“…After the discovery of the giant MCE in MnFe(P,As), many efforts have been devoted to replacing As by non-toxic components. The introduction of Si and Ge atoms into the lattice of MnFe(P,As) retains a giant MCE around room temperature, but an enhanced thermal hysteresis (ΔThys) is observed [11,12]. Recently, some meaningful studies have been done to reduce the ΔThys for MnFe(P,Ge) and MnFe(P,Si) compounds.…”

Magnetic-entropy change in Mn5Ge3−xSix alloys

“…Currently, much attention is paid to room temperature magnetic refrigeration [1][2][3][4][5][6][7][8][9]. The key issue for realizing room temperature magnetic refrigeration is to find a working material with large magnetic-entropy change near room temperature.…”

“…The key issue for realizing room temperature magnetic refrigeration is to find a working material with large magnetic-entropy change near room temperature. Several compound systems, such as MnFe(P,As) [2,[6][7][8], Mn(As,Sb) [3], MnFe(P,As,Ge) [9] and La(Fe,Si) 13 H x [4], undergo a firstorder phase transition and exhibit a large magnetocaloric effect (MCE) around room temperature. A small temperature interval of the large MCE and the thermal hysteresis of the magnetization associated with the first-order phase transition are not favorable for applications.…”

Magnetocaloric Effect and Critical Behavior in Fe-Dy-Zr Rapidly Quenched Alloys

“…A number of magnetocaloric materials have been synthesized to show high application possibility for magnetic refrigeration at room temperature. These materials include Gd-containing magnetocaloric alloys (e.g., GdSiGe, GdCo), 1,2 As-containing alloys (e.g., MnAsSb, MnFePAs), 3,4 La-containing alloys (e.g., LaFeSi), 5 Heusler alloys (e.g., CoMnSi, NiMnSn, NiMnGa), and [6][7][8][9] ferromagnetic perovskite maganite compounds. 10,11 Recently, many researchers have focused on magnetocaloric materials with amorphous or nanocrystalline structures.…”