Crystal structure, magnetic and electronic properties of CoxFe1−xMnP system

Sredniawa, B.; Zach, R.; Fornal, P.; Duraj, R.; Bombik, A.; Toboła, J.; Kaprzyk, S.; Nizioł, S.; Fruchart, D.; Bacmann, M.; Fruchart, R.; Staněk, J.

doi:10.1016/s0925-8388(00)01346-3

Cited by 15 publications

(26 citation statements)

References 10 publications

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“…With magnetic moments of 0.5 < µ < 1 µ B (ref. 44) for Fe atoms, this Fe-6Mn local configuration internally establishes FM coupling. The spirally AFM-coupled Mn moments within the configuration is thus changed into parallel alignment because of the Fe moments.…”

Section: Discussionmentioning

confidence: 90%

Stable magnetostructural coupling with tunable magnetoresponsive effects in hexagonal ferromagnets

et al. 2012

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The magnetostructural coupling between the structural and the magnetic transition has a crucial role in magnetoresponsive effects in a martensitic-transition system. A combination of various magnetoresponsive effects based on this coupling may facilitate the multifunctional applications of a host material. Here we demonstrate the feasibility of obtaining a stable magnetostructural coupling over a broad temperature window from 350 to 70 K, in combination with tunable magnetoresponsive effects, in mnniGe:Fe alloys. The alloy exhibits a magneticfield-induced martensitic transition from paramagnetic austenite to ferromagnetic martensite. The results indicate that stable magnetostructural coupling is accessible in hexagonal phasetransition systems to attain the magnetoresponsive effects with broad tunability.

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Section: Discussionmentioning

confidence: 90%

Stable magnetostructural coupling with tunable magnetoresponsive effects in hexagonal ferromagnets

et al. 2012

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“…As a matter of fact, we can consider that this new sample display magnetic properties well in line with the previous report. 19 For sake of clarity and due to the closeness with the x=0.475 of the literature, our x=0.47 sample will be considered directly comparable hereafter. In B= 0.5 T, one observes that the AF-FM transition is sharp, the magnetization jump is of about 50 Am 2 kg -1 and takes place over a limited temperature range of 15 K. When the magnetic field is increased in the range 0.1 T ≤ B ≤ 0.7 T, as can be expected for a AF-FM transition, the T N is simply shifted toward lower temperatures.…”

Section: Methodsmentioning

confidence: 99%

“…23 This series Co 1-x Fe x MnP was experimentally investigated for the first time in the 70's 24 (a copy of the phase diagram can be found in Ref. 19). For x values between 0.5 <x <0.8, a sequence of AF-FM and then FM-PM transitions was found to take place upon warming.…”

Section: Introductionmentioning

confidence: 99%

Tuning the metamagnetic transition in the (Co, Fe)MnP system for magnetocaloric purposes

Guillou

Brück

2013

Journal of Applied Physics

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The inverse magnetocaloric effect taking place at the antiferro-to-ferromagnetic transition of (Co,Fe)MnP phosphides has been characterised by magnetic and direct ΔT ad measurements. In Co 0.53 Fe 0.47 MnP, entropy change of 1.5 Jkg -1 K -1 and adiabatic temperature change of 0.6 K are found at room temperature for an intermediate field change (∆B= 1 T). Several methods were used to control the metamagnetic transition properties, in each case a peculiar splitting of the antiferro-to-ferromagnetic transition is observed.

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“…(Color online) Experimentally observed Mn-Mn distances (d1, d2) in (Fe1-xCox)MnP pseudo-ternary alloy at 100 K (after30 ). Antiferromagnetism becomes stable as d1 increases above ∼2.95Å, in line with our calculations on MnP inFig.…”

mentioning

confidence: 99%

Structurally driven metamagnetism in MnP and relatedPnmacompounds

Gercsi

Sandeman

2010

Phys. Rev. B

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We investigate the structural conditions for metamagnetism in MnP and related materials using Density Functional Theory. A magnetic stability plot is constructed taking into account the two shortest Mn-Mn distances. We find that a particular Mn-Mn separation plays the dominant role in determining the change from antiferromagnetic to ferromagnetic order in such systems. We establish a good correlation between our calculations and structural and magnetic data from the literature. Based on our approach it should be possible to find new Mn-containing alloys that possess fieldinduced metamagnetism and associated magnetocaloric effects.

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Crystal structure, magnetic and electronic properties of CoxFe1−xMnP system

Cited by 15 publications

References 10 publications

Stable magnetostructural coupling with tunable magnetoresponsive effects in hexagonal ferromagnets

Stable magnetostructural coupling with tunable magnetoresponsive effects in hexagonal ferromagnets

Tuning the metamagnetic transition in the (Co, Fe)MnP system for magnetocaloric purposes

Structurally driven metamagnetism in MnP and relatedPnmacompounds

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