A model description of the first-order phase transition in MnFeP1−xAsx

Tegus, O.; Lin, Guoxing; Dagula, W.; Fuquan, B.; Zhang, L.; Brück, E.; Boer, F.R. de; Buschow, K.H.J.

doi:10.1016/j.jmmm.2004.11.325

Cited by 31 publications

(34 citation statements)

References 10 publications

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“…Tegus et al applied the Bean-Rodbell model to the fi rstorder phase transition in MnFeP 1 − x As x , using J = 2. [ 79 ] They show that by combining the Bean-Rodbell model with a Landau free energy approach one can gain a qualitative understanding of the fi eld-induced metamagnetic transition. Jia et al used a similar approach to study the magnetovolume effects caused by the introduction of interstitial hydrogen in La(Fe x Si 1 − x ) 13 .…”

Section: Bean-rodbell Like Modelsmentioning

confidence: 99%

Materials Challenges for High Performance Magnetocaloric Refrigeration Devices

Smith

Bahl

Bjørk

et al. 2012

Advanced Energy Materials

504

262

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Magnetocaloric materials with a Curie temperature near room temperature have attracted significant interest for some time due to their possible application for high‐efficiency refrigeration devices. This review focuses on a number of key issues of relevance for the characterization, performance and implementation of such materials in actual devices. The phenomenology and fundamental thermodynamics of magnetocaloric materials is discussed, as well as the hysteresis behavior often found in first‐order materials. A number of theoretical and experimental approaches and their implications are reviewed. The question of how to evaluate the suitability of a given material for use in a magnetocaloric device is covered in some detail, including a critical assessment of a number of common performance metrics. Of particular interest is which non‐magnetocaloric properties need to be considered in this connection. An overview of several important materials classes is given before considering the performance of materials in actual devices. Finally, an outlook on further developments is presented.

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Section: Bean-rodbell Like Modelsmentioning

confidence: 99%

Materials Challenges for High Performance Magnetocaloric Refrigeration Devices

Smith

Bahl

Bjørk

et al. 2012

Advanced Energy Materials

504

262

View full text Add to dashboard Cite

show abstract

“…Currently, much attention is paid to room temperature magnetic refrigeration [1][2][3][4][5][6][7][8][9]. The key issue for realizing room temperature magnetic refrigeration is to find a working material with large magnetic-entropy change near room temperature.…”

Section: Introductionmentioning

confidence: 99%

Magnetic-entropy change in Mn5Ge3−xSix alloys

Zhao

Dagula

Tegus

et al. 2006

Journal of Alloys and Compounds

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“…Alternatively, the critical behavior at a FOMT can also be described in terms of the Bean-Rodbell model. 18 Mössbauer spectral analyses made on compounds such as MnFeP 1−x As x ͑Ref. 19͒ and Mn 1.1 Fe 0.9 P 1−x Ge x ͑Ref.…”

mentioning

confidence: 99%

Tunable thermal hysteresis in MnFe(P,Ge) compounds

Trung

Gortenmulder

et al. 2009

Applied Physics Letters

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138

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General rightsIt is not permitted to download or to forward/distribute the text or part of it without the consent of the author(s) and/or copyright holder(s), other than for strictly personal, individual use, unless the work is under an open content license (like Creative Commons). Disclaimer/Complaints regulationsIf you believe that digital publication of certain material infringes any of your rights or (privacy) interests, please let the Library know, stating your reasons. In case of a legitimate complaint, the Library will make the material inaccessible and/or remove it from the website. Please Ask the Library: http://uba.uva.nl/en/contact, or a letter to: Library of the University of Amsterdam, Secretariat, Singel 425, 1012 WP Amsterdam, The Netherlands. You will be contacted as soon as possible. Structural, magnetic, and magnetocaloric properties of the MnFe͑P,Ge͒ compounds were systematically studied on both bulk alloys and melt-spun ribbons. The experimental results show that the critical behavior of the phase transition can be controlled by changing either the compositions or the annealing conditions. The thermal hysteresis is found to be tunable. It can reach very small values, while maintaining a large magnetocaloric effect in a large range of working temperatures and under field changes that may be produced by conventional permanent magnets. Consequently, an effective way in producing ideal magnetic refrigerants for room-temperature applications is suggested.

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A model description of the first-order phase transition in MnFeP1−xAsx

Cited by 31 publications

References 10 publications

Materials Challenges for High Performance Magnetocaloric Refrigeration Devices

Materials Challenges for High Performance Magnetocaloric Refrigeration Devices

Magnetic-entropy change in Mn5Ge3−xSix alloys

Tunable thermal hysteresis in MnFe(P,Ge) compounds

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