Magnetocaloric effect in rare earth-based bulk metallic glasses

Luo, Qiang; Wang, W.H.

doi:10.1016/j.jallcom.2010.01.125

Cited by 128 publications

(47 citation statements)

References 72 publications

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“…The increase in disorder with increasing Sr and Nd doping content enhances the inhomogeneity of the samples. In this case, Shen et al [41,43] show that in single-phase materials, n is field-independent especially at the peak temperature, and when the system is multiphase, n is field-dependent at any temperature. Thus, the variation of n (T, H) indicates the inhomogeneous character for all specimens, among the various forms of the inhomogeneous phase is the existence of some alterations of shortrange magnetic order of FM clusters [44,45].…”

Section: Field Dependence Of the Magnetic Entropy Changementioning

confidence: 99%

The influence of disorder on magnetocaloric effect and the order of transition in ferromagnetic manganite (La1−x Nd x )2/3(Ca1−y Sr y )1/3MnO3

2014

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Magnetocaloric effect and order of transition in (La 1-x Nd x ) 2/3 (Ca 1-y Sr y ) 1/3 MnO 3 , prepared by conventional solid-state reaction, have been investigated. Using Banerjee criterion, we demonstrate first-order transition for (J1) and (J2) as well as second-order transition for (J3), (J4), and (J5) samples. The DS M max is ranging between 9.18 Jkg -1 K -1 and 4.87 when Nd and Sr content changes leading to relative cooling power (RCP) varying between 330 and 229.35 J/kg. Both DS M max and the RCP are found sensitive to the disorder r 2 . The universal behavior obtained from DS variation curves confirmed the first-order transition for (J1) and (J2) samples and second-order transition for (J3), (J4), and (J5) samples obtained by Banerjee criterion. All samples with second-order phase transition exhibit inhomogeneous character estimated from local exponent n.

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Section: Field Dependence Of the Magnetic Entropy Changementioning

confidence: 99%

The influence of disorder on magnetocaloric effect and the order of transition in ferromagnetic manganite (La1−x Nd x )2/3(Ca1−y Sr y )1/3MnO3

2014

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“…Therefore, the rare earth based BMGs have attracted intense interests as magnetic refrigeration materials recently. [5][6][7][8] In contrast to crystalline compounds, the disordered BMGs have a broadened magnetic entropy change peak and high value of refrigerant capacity. The properties of metallic glasses can be also modulated by annealing and the composition.…”

Section: Introductionmentioning

confidence: 99%

“…The properties of metallic glasses can be also modulated by annealing and the composition. 1,7 These features drew the attention of researchers searching for systems with promising magnetocaloric properties.…”

Section: Introductionmentioning

confidence: 99%

Large magnetic entropy and electron-phonon coupling in Gd-based metallic glass

Tang

Xia

Chan

et al. 2012

Journal of Applied Physics

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We study the magnetic entropy behavior in Gd 55 Al 20 Ni 12 Co 10 Mn 3 metallic glass by magnetic susceptibility, resistivity, and specific heat at low temperatures. The Gd-based metallic glass shows metallic behavior, and a ferromagnetic to paramagnetic transition at 106 K. The ferromagnetic order assists the electron-phonon coupling, which induces the large excess magnetic entropy below Curie temperature in the Gd-based metallic glass. The results are important to understand the electron-phonon coupling behavior in disordered alloys. V C 2012 American Institute of Physics. [http://dx

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“…One way of elaborating new MCM is then to work on Gdbased metallic glasses. 8,[15][16][17][18][19][20][21][22][23][24] It allows maintaining a high density of magnetic moments and no magnetic hysteresis while decreasing the content of expensive Gd and overcomes the issue of easy corrosion. These materials also display good mechanical properties 25 and a low electric resistivity that decreases eddy current losses.…”

Section: Introductionmentioning

confidence: 99%

“…These materials also display good mechanical properties 25 and a low electric resistivity that decreases eddy current losses. By comparing many different studies, it is shown, 8,[15][16][17][18][19][20][21][22][23][24] that changing the transition element M of metallic glasses in the Gd-RE-M-Al systems, with RE ¼ Rare Earth, allowed the tuning of the magnetocaloric properties. In the present study, the model a)…”

Section: Introductionmentioning

confidence: 99%

Tunable magnetocaloric effect in Gd-based glassy ribbons

Mayer¹,

Gorsse²,

Ballon³

et al. 2011

Journal of Applied Physics

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Articles you may be interested inTheoretical description of magnetocaloric effect in the shape memory alloy exhibiting metamagnetic behavior J. Appl. Phys. 119, 013902 (2016) The series of glassy ribbons Gd 60 M 30 In 10 (M ¼ Mn, Co, Ni, Cu) was synthesized by melt-spinning. The change of transition element M in these Gd-based metallic glasses was proven to induce huge variations of the Curie temperature T C , magnetic entropy change peak values DS m peak , and widths at half maximum values of the magnetic entropy change dT. When M is non magnetic (M ¼ Co, Ni, Cu), the samples behave similarly: they display high values of DS m peak (between -6.6 and -8.2 J/kg K in a magnetic field variation of 4.6 T), average dT values (between 77 and 120 K) and no magnetic hysteresis. On the contrary, when M carries a magnetic moment (M ¼ Mn), some irreversibility appears at low temperature, DS m peak is lower (only 3.1 J/kg K for l 0 H ¼ 4.6 T) and the magnetic transition is very large (dT ¼ 199 K for l 0 H ¼ 4.6 T). These features are explained by some antiparallel coupling between Mn atoms randomly located in the metallic glass. This leads to the occurrence of a cluster-glass behavior at low temperature (35 K), following the ferromagnetic transition observed at 180 K when the temperature is decreased. Also, power law fittings of DS m peak and dT versus l 0 H were performed and show that dT is less field dependent than DS m peak . We could then identify an interesting way of improving the refrigeration capacity of the material at low magnetic field.

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Magnetocaloric effect in rare earth-based bulk metallic glasses

Cited by 128 publications

References 72 publications

The influence of disorder on magnetocaloric effect and the order of transition in ferromagnetic manganite (La1−x Nd x )2/3(Ca1−y Sr y )1/3MnO3

The influence of disorder on magnetocaloric effect and the order of transition in ferromagnetic manganite (La1−x Nd x )2/3(Ca1−y Sr y )1/3MnO3

Large magnetic entropy and electron-phonon coupling in Gd-based metallic glass

Tunable magnetocaloric effect in Gd-based glassy ribbons

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