Magnetoelastic transition and antiferro-ferromagnetic ordering in the system MnFeP1−yAsy

Bacmann, M.; Soubeyroux, Jean-Louis; Barrett, Ray; Fruchart, D.; Zach, R.; Nizioł, S.; Fruchart, R.

doi:10.1016/0304-8853(94)90073-6

Cited by 78 publications

(93 citation statements)

References 8 publications

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“…[1][2][3][6][7][8] In Fig. 3, we show the typical results of the X-ray diffraction profiles in 50:5 2 54:0 under a zero field and 5 T at several temperatures.…”

Section: Resultsmentioning

confidence: 99%

“…1,2) In this As concentration, this ordering temperature increases from 200 to 350 K with increasing x.…”

Section: Introductionmentioning

confidence: 85%

“…Here, we briefly discuss our results on the basis of results of the neutron diffraction 2) and the band structural calculations. 14,15) The neutron diffraction study for MnFeP 0:5 As 0:5 in a zero field showed that the magnetic moment of Mn(3g) (m Mn ) is 2.02 B , but the moment of Fe(3f) (m Fe ) is suppressed and only 1.48 B at 200 K (FM phase).…”

Section: )mentioning

confidence: 99%

“…In addition, the Fe(3f)-Fe(3f) interatomic distance is markedly expanded with the isostructural transformation, accompanied by the magnetic transition from the PM to FM phase, suggesting that the extent of the Fe(3f) d-band overlap is the important factor in the magnetic and structural properties. 2) That is, the expansion of the Fe(3f)-Fe(3f) distance (isostructural transformation) yields a larger m Fe , which stabilize the FM state. A band structure calculation by Tobala et al for MnFeAs with the Fe 2 P-type structure also supports the small value of m Fe at the 3f site.…”

Section: )mentioning

confidence: 99%

“…However, the results of the neutron diffraction experiment showed that the Fe(3f)-Fe(3f) interatomic distance is the most sensitive to the magnetic phase transition, compared to other interatomic distances among Fe, Mn, P and As. 2) Moreover, recently, MnFeP 1Àx As x with x $ 0:5 has attracted interest as a magnetic refrigeration materials, because the compound exhibits a large magnetocaloric effect at room temperature, accompanied by the first-order magnetic phase transition.…”

Section: Introductionmentioning

confidence: 99%

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Magnetic Field Effect on Structural Property of MnFeP0.5As0.5

et al. 2005

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The magnetic field effect on the structural property of a ferromagnetic compound MnFeP 0:5 As 0:5 was investigated by powder X-ray diffraction measurement in magnetic fields up to 5 T. The compound with the hexagonal Fe 2 P-type structure shows a field-induced isostructural transformation with a hysteresis by applying magnetic field, accompanied by the metamagnetic transition from the paramagnetic to ferromagnetic state just above the Curie temperature of 284 K. In this transformation, the a parameter expands by 0.5% whereas the c parameter contracts by 1%. However, the cell volume slightly and continuously decreases with increasing magnetic field through the transformation.

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“…[1][2][3][6][7][8] In Fig. 3, we show the typical results of the X-ray diffraction profiles in 50:5 2 54:0 under a zero field and 5 T at several temperatures.…”

Section: Resultsmentioning

confidence: 99%

“…1,2) In this As concentration, this ordering temperature increases from 200 to 350 K with increasing x.…”

Section: Introductionmentioning

confidence: 85%

Section: )mentioning

confidence: 99%

Section: )mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Magnetic Field Effect on Structural Property of MnFeP0.5As0.5

et al. 2005

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Chalcogenides and Pnictides

Fruchart¹,

Wolfers²

2007

Handbook of Magnetism and Advanced Magnetic Materials

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The first part of the chapter is dedicated to magnetic properties of metal phosphides and arsenides, mainly those with MX and M 2 X formulas. Their crystal structures are classified on the basis of the relative M–M and M–X bonding strength. Electronic origin instabilities of the d‐magnetism are underlined with reference to magnetoelastic, magnetic field, and pressure induced transitions, thus revealing high‐performing materials in terms of colossal magnetocaloric properties. In short, the second part reports on the knowledge of magnetic chalcogenides, from zinc‐blende spintronic materials up to recent studies on rare‐earth and uranium magnetic compounds.

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Advanced Magnetocaloric Materials for Energy Conversion: Recent Progress, Opportunities, and Perspective

Zhang,

Miao,

van Dijk

et al. 2024

Advanced Energy Materials

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Solid‐state caloric effects as intrinsic thermal responses to different physical external stimuli (magnetic‐, uniaxial stress‐, pressure‐, and electric‐fields) can achieve a higher energy efficiency compared with traditional gas compression techniques. Among these effects, magnetocaloric energy conversion is regarded as the best available alternative and has been exploited extensively for promising application scenarios in the last decades. This review systematically introduces the magnetocaloric effect and its applications, and summarizes the corresponding representative magnetocaloric materials, as well as important progress in recent years. Specifically, the review focuses on some key understandings of the magnetocaloric effect by utilizing state‐of‐the‐art technical tools such as synchrotron X‐ray, neutron scattering, muon spin spectroscopy, positron annihilation spectroscopy, high magnetic fields, etc., and highlights their importance toward advanced materials design and development. An overview of the basic principles and applications of these advanced techniques on magnetocaloric materials is provided. Finally, the challenges and perspectives on further developments in this field are discussed. Further in‐depth understanding and manufacturing technology advancement combined with fast‐developed artificial intelligence and machine learning are expected to advance the magnetocaloric energy conversion technology closer to real applications.

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Magnetoelastic transition and antiferro-ferromagnetic ordering in the system MnFeP1−yAsy

Cited by 78 publications

References 8 publications

Magnetic Field Effect on Structural Property of MnFeP<SUB>0.5</SUB>As<SUB>0.5</SUB>

Magnetic Field Effect on Structural Property of MnFeP<SUB>0.5</SUB>As<SUB>0.5</SUB>

Chalcogenides and Pnictides

Advanced Magnetocaloric Materials for Energy Conversion: Recent Progress, Opportunities, and Perspective

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