Magnetostructural coupling and magnetocaloric effect in Ni–Mn–In

Li, B.; Ren, Weijun; Zhang, Q.; Lv, X. K.; Liu, X. G.; Meng, Hui; Li, J.; Li, D.; Zhang, Z. D.

doi:10.1063/1.3257381

Cited by 54 publications

(30 citation statements)

References 30 publications

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“…In Fig. 2͑a͒, the pattern measured at 340 K confirms the co- Ni-Mn-In, 12 it is reasonable to assume that, for the sample with 0 Ͻ x Յ 0.25, the smaller distance between the Mn and Co sublattices below T t favors the AFM state whereas the relatively larger distance above T t is suitable for the FM arrangement of the magnetic moments. Because the contribution of electronic entropy change ͑⌬S E ͒ is very small, the ⌬S M for a FOMST mainly consists of the spin-entropy change ͑⌬S spin ͒ plus the lattice-entropy change ͑⌬S L ͒.…”

mentioning

confidence: 81%

“…16 For the martensitic transition in Ni-Mn-In alloys, the contribution of ⌬S L has been estimated at about 50% of ⌬S M . 12 For Gd 4 Si x Ge 4−x , this contribution is found to be lower, varying from 20% to 40%. 17 In Mn 1−x Cr x CoGe, the amount of orth.…”

mentioning

confidence: 99%

“…The total entropy change ͑⌬S M ͒ of materials with hysteretic first-order transitions can reliably be calculated from the Maxwell relation. 12 The structural properties of Mn 1−x Cr x CoGe were investigated by x-ray diffraction ͑XRD͒. The volume fraction ͑vol %͒ of the orth.…”

mentioning

confidence: 99%

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From single- to double-first-order magnetic phase transition in magnetocaloric Mn1−xCrxCoGe compounds

Trung

Biharie

Zhang

et al. 2010

Applied Physics Letters

221

110

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Substitution of some Cr for Mn atoms in MnCoGe was employed to control the magnetic and structural transitions in this alloy to coincide, leading to a single first-order magnetostructural transition from the ferromagnetic to the paramagnetic state with a giant magnetocaloric effect observed near room temperature. Further increase in the Cr content in the Mn1−xCrxCoGe alloys can induce another first-order magnetoelastic transition from the antiferromagnetic to the ferromagnetic state occurring at lower temperature. The giant magnetocaloric effect as well as the simultaneous tunability of the two magnetic transitions make these materials promising for future cooling applications.

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mentioning

confidence: 81%

mentioning

confidence: 99%

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From single- to double-first-order magnetic phase transition in magnetocaloric Mn1−xCrxCoGe compounds

Trung

Biharie

Zhang

et al. 2010

Applied Physics Letters

221

110

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“…В целом ха-рактер и значения относительных изменений линейных размеров образцов с 0 ≤ x ≤ 3 при мартенситном пре-вращении сравнимы с наблюдавшимися в классических сплавах Гейслера с магнитной памятью формы на ос-нове системы Ni−Mn−Ga [17,18]. Для новых сплавов Гейслера на основе сплавов системы Ni−Mn−Sn нам не удалось найти в литературе экспериментальных дан-ных об изменении размеров при мартенситном пре-вращении, а в сплавах Ni−Mn−In линейные размеры образца могут увеличиваться при фазовом переходе мартенсит−аустенит на 0.25% [19].…”

Section: рисunclassified

Фазовые переходы и тепловое расширение в сплавах Ni-=SUB=-51-x-=/SUB=-Mn-=SUB=-36+x-=/SUB=-Sn-=SUB=-13-=/SUB=-

Калетина¹,

Gerasimov²,

Казанцев³

et al. 2017

Физика Твердого Тела

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Исследованы тепловое расширение, структурные и магнитные фазовые переходы в сплавах системы Ni−Mn−Sn. Установлено, что в сплавах Ni 51−x Mn 36+x Sn 13 (0 ≤ x ≤ 3) спонтанное мартенситное пре-вращение сопровождается большими скачками на температурных зависимостях линейного теплового расширения. Относительное изменение линейных размеров в этих сплавах при мартенситном превращении составляет ∼ 1.5 · 10 −3 . На температурных зависимостях коэффициента линейного теплового расширения не наблюдается аномалий в области температур магнитного упорядочения. Установлены различия в поведении линейного теплового расширения при мартенситном превращении в сплавах Ni 51−x Mn 36+x Sn 13 ( 0 ≤ x ≤ 3) и сплаве Ni 47 Mn 40 Sn 13 (x = 4).Работа выполнена в рамках государственного задания (тема " Структура", № 01201463331) при частичной поддержке РФФИ (проект № 16-03-00043) и проекта № 15-17-2-24 УрО РАН.

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“…[55,63,69,70] Furthermore, Li et al investigated the magnetostructural coupling in Ni 50 Mn 35 In 15 systems and identified the contribution of the lattice-entropy change to the total entropy change. [64] Very recently, Liu et al demonstrated that the structural transition plays a dominant role for the considerable adiabatic temperature change in the metamagnetic NiMnCoIn alloys. [15] Here we mainly review our recent progress with regard to the effects of atomic substitution, post-annealing, the introduction of interstitial atoms, and forced atomic disorder on the magnetic, magnetocaloric, and transport properties of the novel NiMn-based metamagnetic Heusler alloys.…”

Section: Magnetic Entropy Change In Conventional Nimn-based Heusler Amentioning

confidence: 99%

Magnetic entropy change involving martensitic transition in NiMn-based Heusler alloys

Hu¹,

Shen²,

Sun³

2013

Chinese Phys. B

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Our recent progress on magnetic entropy change (∆S) involving martensitic transition in both conventional and metamagnetic NiMn-based Heusler alloys is reviewed. For the conventional alloys, where both martensite and austenite exhibit ferromagnetic (FM) behavior but show different magnetic anisotropies, a positive ∆S as large as 4.1 J·kg −1 ·K −1 under a field change of 0-0.9 T was first observed at martensitic transition temperature T M ∼ 197 K. Through adjusting the Ni:Mn:Ga ratio to affect valence electron concentration e/a, T M was successfully tuned to room temperature, and a large negative ∆S was observed in a single crystal. The −∆S attained 18.0 J·kg −1 ·K −1 under a field change of 0-5 T. We also focused on the metamagnetic alloys that show mechanisms different from the conventional ones. It was found that post-annealing in suitable conditions or introducing interstitial H atoms can shift the T M across a wide temperature range while retaining the strong metamagnetic behavior, and hence, retaining large magnetocaloric effect (MCE) and magnetoresistance (MR). The melt-spun technique can disorder atoms and make the ribbons display a B2 structure, but the metamagnetic behavior, as well as the MCE, becomes weak due to the enhanced saturated magnetization of martensites. We also studied the effect of Fe/Co co-doping in Ni 45 (Co 1−x Fe x ) 5 Mn 36.6 In 13.4 metamagnetic alloys. Introduction of Fe atoms can assist the conversion of the Mn-Mn coupling from antiferromagnetic to ferromagnetic, thus maintaining the strong metamagnetic behavior and large MCE and MR. Furthermore, a small thermal hysteresis but significant magnetic hysteresis was observed around T M in Ni 51 Mn 49−x In x metamagnetic systems, which must be related to different nucleation mechanisms of structural transition under different external perturbations.

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Magnetostructural coupling and magnetocaloric effect in Ni–Mn–In

Cited by 54 publications

References 30 publications

From single- to double-first-order magnetic phase transition in magnetocaloric Mn1−xCrxCoGe compounds

From single- to double-first-order magnetic phase transition in magnetocaloric Mn1−xCrxCoGe compounds

Фазовые переходы и тепловое расширение в сплавах Ni-=SUB=-51-x-=/SUB=-Mn-=SUB=-36+x-=/SUB=-Sn-=SUB=-13-=/SUB=-

Magnetic entropy change involving martensitic transition in NiMn-based Heusler alloys

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