Effects of transitional hysteresis on the large magnetocaloric and magnetoresistance properties of Ni-Mn-Co-Sn Heusler alloy

Enhanced Refrigeration Capacity of Rare-Earth-Free Ni-Co-Mn-In-Si Heusler Alloys for Magnetic Refrigerants

“…Particularly, the elemental binding energies of Ni 2p3/2 (2p1/2), Co 2p3/2 (2p1/2), Mn 2p3/2 (2p1/2), In 3d5/2 (3d3/2), and Si 2p3/2 (2p1/2) are ∼851.5 eV (∼868.6 eV), ∼778.8 eV (∼794.4 eV), ∼640 eV (∼652.9 eV), and ∼444.1 eV (∼451.7 eV) and ∼101.5 eV (∼105.7) respectively, which confirms that all the constituent elements in Ni 45 Co 5 Mn 37 In 12 Si 1 are their respective metallic states of Ni 2p, Co 2p, Mn 2p, In 3d and Si 2p, and untraceable of oxidation during synthesis of alloys, consistent with the reported in the literature. [27][28][29][30][31][32] Magnetic and magnetocaloric properties.-Figures 4a and 4b show the temperature dependence of the magnetization M(T) measured in 0.01 T under ZFC, FC and FW conditions for S0h and S10h. The M(T) curves at 5 T show a significant magnetization shift associated with the martensitic transformation as anticipated from ferromagnetic austenite to weak magnetic martensite.…”

Structural and Magnetic Properties of Inverse-Heusler Mn2FeSi Alloy Powder Prepared by Ball Milling

“…The current rapid development of technology increases the requirements for materials research and the search for new material compositions. One of the attractive and currently investigated classes are Heusler alloys, which contain more than 4000 potential members and are applied in the fields like spintronics [1], magnetooptics [2,3], magnetoresistance and magnetocaloric devices [4,5], topological materials [6], shape memory alloys [7,8], spin injectors [9], etc. In general, regular types of Heusler materials are ternary intermetallic compounds with composition of elements X 2 YZ (full-Heusler) or XYZ (half-Heusler), where X and Y are transition metals (e.g., Fe, Co, Mn) and Z is an s, p element, e.g., Si, Al, In, Sn.…”

Realization of Enhanced Refrigeration Capacity with Non-Hysteretic Behavior in Ni40Gd5Co5Mn37In12Si1 Alloy Near Room Temperature at 2T

“…The core-level XPS of Ni 2p, Co 2p, Gd 4d, Mn 2p, In 3d, and Si 2p for GA sample was recorded and is presented in Figure . The elemental binding energies of Ni 2p 3/2 (2p 1/2 ), Co 2p 3/2 (2p 1/2 ), Gd 4d 5/2 (4d 3/2 ), Mn 2p 3/2 (2p 1/2 ), In 3d 5/2 (3d 3/2 ), and Si 2p 3/2 (2p 1/2 ) are ∼851.7 eV (∼873.09 eV), ∼779.8 eV (∼796.9 eV),∼140.74 eV (145.81 eV), ∼640.74 eV (∼653.02 eV), ∼443.7 eV (∼451.35 eV), and ∼101.1 eV (∼105.6), respectively, which also confirms that all the constituent elements in Ni 45 Co 5 Mn 37 In 12 Si 1 are their respective metallic states of Ni 2p, Co 2p, Mn 2p, In 3d, and Si 2p, and seen untraceable oxidation during synthesis of alloys, consistent with the previous reports in the literature. − The core-level XPS spectra of Ni 2p, Co 2p, Mn 2p, In 3d, and Si 2p of NM alloy is seen in Figure S3, Supporting Information. To be specific, intensity variation shows that doping Gd in NM alloy plays an important role in the core level as it decreases the intensity of the element.…”