Giant Hall effect in Ni-Mn-In Heusler alloys

Dubenko, Igor; Pathak, Arjun K.; Stadler, Shane; Ali, Naushad; Kovarskii, Ya. N.; Прудников, В. В.; Перов, Н. С.; Granovsky, A. B.

doi:10.1103/physrevb.80.092408

Cited by 86 publications

(35 citation statements)

References 22 publications

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“…These magnetoelastic transitions have been utilized in the intensive investigations of a large body of giant magnetocaloric materials [19][20][21][22][23][24][25][26][27] . In contrast, in typical FMMTs, the change of structural symmetries of austenite and martensite is remarkable [6][7][8][9][10][11] . The transition converts the different magnetic states (moment values and type of coupling) in between the two phases that have separate Curie (Néel) temperatures.…”

mentioning

confidence: 88%

“…T he ferromagnetic martensitic transition (FMMT) [1][2][3] , a coinciding crystallographic and magnetic transition mainly found in Fe-based and Heusler ferromagnetic alloys, is receiving increasing attention from both the magnetism and the material science community due to the massive variations of associated magnetoresponsive effects, such as magnetic-field-induced shape memory/strain effect [4][5][6][7] , magnetoresistance 8,9 , Hall effect 10 and magnetocaloric effect 11,12 . These effects are of interest for many potential technological applications like magnetic actuators 13,14 , sensors 15 , energy-harvesting devices 16 and solid-state magnetic refrigeration 17 .…”

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confidence: 99%

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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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confidence: 88%

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confidence: 99%

Stable magnetostructural coupling with tunable magnetoresponsive effects in hexagonal ferromagnets

et al. 2012

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“…The giant Hall effect, giant magnetothermal conductivity, metamagnetic behavior, and exchange bias phenomenon has been reported in Ni 50 Mn 50−x In x alloys. [11][12][13] The effect of partial substitution of Ni by Co, and In by Si, Al, Ga, Ge, Sb on magnetic properties, phase transition temperatures, and magnetocaloric effect ͑MCE͒ has been investigated in Ni-Mn-In system. [14][15][16][17] However, the influence of excess Mn at the Ni site ͑or Ni/Mn ratio͒ on structure, phase transition temperatures, magnetic properties, and MCE has not been studied in these system.…”

Section: Introductionmentioning

confidence: 99%

Effect of Ni/Mn ratio on phase transformation and magnetic properties in Ni–Mn–In alloys

Rao¹,

Chandrasekaran²,

Суреш³

2010

Journal of Applied Physics

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The effect of variation in Ni/Mn ratio on structure, phase transformation, and magnetic properties was investigated in the Ni50−xMn37+xIn13 alloys. Small change in the Ni/Mn ratio drives the structure from martensite of tetragonal L10 to austenite of cubic L21 at room temperature. With decrease in Ni/Mn ratio or increase in Mn content the martensitic transformation temperature was found to decrease and the alloys do not undergo phase transformation below a critical value (7.86) of valence electron concentration (e/a). Temperature and field dependence of magnetization data reveals the complex magnetic nature arising from the coexistence of ferromagnetic and antiferromagnetic interactions in the system. It was found that the effect of Ni/Mn and Mn/In ratios on phase transformation and magnetic properties in Ni–Mn–In alloys is similar if the e/a value of the alloy system remains unchanged.

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“…NiMnIn belongs to the separate group of Heusler alloys called metamagnetic alloys (NiMnGa, NiMnSn, NiMnIn) [6]. The strong magnetic and structural nonhomogeneity in this compound may be the source of GMR [7].…”

Section: Introductionmentioning

confidence: 99%

Structure and composition of layers of Ni-Co-Mn-In Heusler alloys obtained by pulsed laser deposition

et al. 2016

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Abstract. In present work we were analysing thin layers of Ni-Co-Mn-In alloys, grown by pulsed laser deposition method (PLD) on Si, NaCl and glass substrates. For target ablation the second harmonics of YAG:Nd 3+ laser was used. The target had the composition Ni 45 Co 5 Mn 34.5 In 14.5 . The morphology of the layers and composition were studied by electron microscopy TESCAN Vega3 equipped with microanalyzer EDS -Easy EdX system working with Esprit Bruker software. The X-ray diffraction measurements (XRD), performed on spectrometer Bruker XRD D8 Advance system, reveals Ni 2 -Mn-In cubic phase having lattice constant a = 6.02Å.

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Giant Hall effect in Ni-Mn-In Heusler alloys

Cited by 86 publications

References 22 publications

Stable magnetostructural coupling with tunable magnetoresponsive effects in hexagonal ferromagnets

Stable magnetostructural coupling with tunable magnetoresponsive effects in hexagonal ferromagnets

Effect of Ni/Mn ratio on phase transformation and magnetic properties in Ni–Mn–In alloys

Structure and composition of layers of Ni-Co-Mn-In Heusler alloys obtained by pulsed laser deposition

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