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- W4313398700 abstract "An off-stoichiometric Ni-Mn-In Heusler alloy has been synthesized and studied for its magnetocaloric and magnetoresistive capabilities. Ni48Ag2Mn37In13 polycrystalline alloy has co-existing austenite and martensite phases at room temperature. On cooling the alloy from 400 K, austenite phase orders ferromagnetically at 312 K closely followed by a martensite transition around 309 K (in 0.01 T). This alloy in martensite state exhibits antiferromagnetism when the applied field is small, and as the field is increased, it attains ferromagnetic state. A metamagnetic transition is seen in isothermal magnetization near martensite transformation temperature yielding negative sloped-Arrott curves. The second order nature of the austenite-ferromagnetic transition is evidenced from local exponent (n) behavior. The entropy change is moderate around this transition and large around martensite transition which is of first order. Clausius-Clapeyron equation is used to validate the entropy change estimated from Maxwell relation. Resistivity falls acutely as the alloy transits from highly resistive martensite to highly conductive austenite phase. The magnetic field reduces the resistivity of both phases leading to a large negative magnetoresistance. Room temperature magnetocaloric effect and large magnetoresistance with low thermal and magnetic hysteresis are salient features of Ni48Ag2Mn37In13 alloy." @default.
- W4313398700 created "2023-01-06" @default.
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- W4313398700 date "2023-03-01" @default.
- W4313398700 modified "2023-09-27" @default.
- W4313398700 title "Ni48Ag2Mn37In13 multifunctional alloy: A room temperature inverse magnetocaloric and magnetoresistive material" @default.
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- W4313398700 doi "https://doi.org/10.1016/j.jallcom.2022.168590" @default.
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