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Metamagnetism
About: Metamagnetism is a research topic. Over the lifetime, 2023 publications have been published within this topic receiving 38108 citations.
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TL;DR: The magnetic properties of free radical nitroxide tanol suberate have been studied between 0.05 K and room temperature as mentioned in this paper, and a metamagnetic transition has been found at 0.38 K. No magnetic hysteresis has been observed down to the lowest temperature.
Abstract: The magnetic properties of the free radical nitroxide tanol suberate have been studied between 0.05 K and room temperature. A metamagnetic transition has been found at 0.38 K. Below this temperature, the magnetization curves have the characteristic S-shape of metamagnets. No magnetic hysteresis has been observed down to the lowest temperature.
44 citations
TL;DR: In this paper, an experimental observation of spin frustration and metamagnetic behavior in a quasi-1D ferrimagnetic chain, (MnTPP)+(TCNE)−, was reported.
Abstract: We report an experimental observation of spin frustration and metamagnetic behavior in a quasi‐1D ferrimagnetic chain, (MnTPP)+(TCNE)−. Metastability, hysteresis effects, and irreversibility of thermal and magnetic histories are observed in magnetization measurements. The ‘‘memory’’ phenomenon is seen in the temperature dependence of the thermoremanent and isothermal remanent magnetization. This system may be relevant to the magnetic behavior of the quantum/classical spin chains. The isothermal M(H) at T=2.25 K supports a first order transition which may be related to effects of local anisotropy.
44 citations
TL;DR: In this article, the magnetic properties and magnetocaloric effects of intermetallic DyCuSi compound have been investigated by means of magnetization measurements and the maximal magnetic entropy change ( − Δ S M ) and refrigerant capacity (RC) are 24.0 and 381 J/kg, respectively, for the field change of 0−5 T.
44 citations
Abstract: Magnetic properties and magnetocaloric effects (MCEs) have been investigated in hydrogenated La0.5Pr0.5Fe11.4Si1.6Hx (x=0, 0.9, and 1.6) compounds. It is found that the Curie temperature TC can be tuned from 189 to 317 K by adjusting hydrogen content from 0 to 1.6. It is attractive that both thermal and magnetic hysteresis are remarkably reduced because of the weakness of the itinerant-electron metamagnetic transition after hydrogenation, while the large magnetic entropy change is retained. The maximal hysteresis loss at TC decreases from 17.8 to 2.3 J/kg as x increases from 0 to 1.6. For the samples with x=0, 0.9, and 1.6, the maximal values of −ΔS are 26.3, 24.1, and 22.1 J/kg K at TC, with efficient refrigeration capacities of 463, 366, and 351 J/kg for a field change of 0–5 T, respectively. Large reversible MCE and small hysteresis with considerable value of refrigeration capacity indicate the potentiality of La0.5Pr0.5Fe11.4Si1.6Hx hydrides as a candidate magnetic refrigerant around room temperature.
44 citations
TL;DR: In this article, the thermal history-dependent (THD) isothermal magnetoresistance (MR) behavior of Ni49.5Mn34.5In16 metamagnetic shape memory alloy is investigated.
Abstract: The thermal-history-dependent (THD) isothermal magnetoresistance (MR) behavior of Ni49.5Mn34.5In16 metamagnetic shape memory alloy is investigated. Irreversibility in isothermal MR is observed in reverse martensitic transformation temperature range, while an intriguing “overshooting” phenomenon is observed in forward martensitic transformation temperature range, showing a strong thermal-history dependence of MR behavior. Such a THD MR behavior can be explained in terms of phase coexistence, THD metastable phase, and magnetic-field-induced phase transition.
44 citations