Erratum: “Structure, hyperfine interactions, and magnetic behavior of amorphous and nanocrystalline Fe80M7B12Cu1 (M=Mo,Nb,Ti) alloys” [J. Appl. Phys. <b>85</b>, 1014 (1999)]

Miglierini, Marcel; Kopcewicz, M.; Idzikowski, B.; Horváth, ZE; Grabias, A.; Škorvánek, I.; Dłuźewski, P.; Daroczi, C.S.

doi:10.1063/1.369390

Cited by 13 publications

(24 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the same paper, the authors announce that even if some Zr atoms are incorporated in bcc-Fe they can be hardly responsible for the differences in magnetic ordering temperature observed. In fact, spectral components with B values similar to those of bcc-Fe nanocrystals were observed also for Zr-free Fe-M-Cu-B, M = Mo, Nb, Ti nanocrystalline alloys [9,13]. P(B) distributions point out also distinctions between magnetic arrangements on the surface (Fig.…”

mentioning

confidence: 91%

Magnetic Microstructure of Nanocrystalline Fe80Nb7Cu1B12 Alloy Investigated by M�ssbauer Spectrometry

Miglierini

Seberíni

2002

phys. stat. sol. (a)

Self Cite

View full text Add to dashboard Cite

Conversion electron Mö ssbauer spectrometry (CEMS) and transmission 57 Fe Mö ssbauer spectrometry are used to probe the local magnetic microstructure of nanocrystalline Fe 80 Nb 7 Cu 1 B 12 alloy. Influence of different crystalline content on retained amorphous phase is studied for the surface and bulk of ribbon-shaped samples. Small amount of nanograins (less than 10%) does not have substantial impact on magnetic behaviour of the amorphous rest. The latter is significantly affected when higher annealing temperatures are applied. Differences in magnetic microstructure with respect to the crystalline content as well as between surface and bulk are discussed by the help of three-dimensional mappings of hyperfine field distributions.Introduction Nanocrystalline alloys are routinely obtained by a controlled crystallization of amorphous precursors. Depending on their composition and annealing conditions the resulting magnetic properties can be tailored to particular needs. To understand macroscopic magnetic behaviour of nanocrystalline alloys, it is inevitable to employ methods that are able to scan the local arrangements of constituent elements. Mö ssbauer spectrometry allows such investigations by providing information on structural positions of the resonant atoms and, at the same time, on their magnetic states [1].Nanocrystalline Fe-Zr-B-(Cu) alloys obtained from heat treated melt spun amorphous ribbons exhibit excellent soft magnetic properties (e.g. [2,3]). Because they crystallize into a bcc-Fe phase, their Mö ssbauer spectra are relatively simple (as compared with those of classical FINEMET alloys) thus allowing closer investigation of magnetic microstructure [4][5][6]. In this paper we report on Mö ssbauer effect studies performed upon Fe 80 Nb 7 Cu 1 B 12 nanocrystalline alloy. Such alloy is a good candidate for model analysis. Magnetic properties and structure was studied in Fe-Nb-B-(Cu) systems using also transmission Mö ssbauer spectroscopy [7][8][9]. Employing transmission as well as conversion electron (CEMS) Mö ssbauer spectroscopy, we have focused our attention on the influence of annealing temperature, i.e. content of nanocrystallites, on hyperfine magnetic fields.

show abstract

mentioning

confidence: 91%

Magnetic Microstructure of Nanocrystalline Fe80Nb7Cu1B12 Alloy Investigated by M�ssbauer Spectrometry

Miglierini

Seberíni

2002

phys. stat. sol. (a)

Self Cite

View full text Add to dashboard Cite

show abstract

“…Due to its extremely high diagnostic potential [5], it enables simultaneous identification of structural features as well as their impact upon the resulting hyperfine interactions.…”

Section: Introductionmentioning

confidence: 99%

Influence of composition on hyperfine interactions in FeMoCuB nanocrystalline alloy

et al. 2006

Self Cite

View full text Add to dashboard Cite

Influence of varying Fe/B ratio upon hyperfine interactions is investigated in the Fe91−xMo8Cu1Bx rapidly quenched alloys. They are studied both in the as-quenched (amorphous) state as well as after one-hour annealing at different temperatures ranging from 330 • C up to 650 • C. Such a heat treatment causes significant structural changes featuring a formation of nanocrystalline bcc-Fe grains during the first crystallization step. At higher annealing temperatures, a grain growth of bcc-Fe and occurrence of additional crystalline phases are observed. The relative fraction of the crystalline phase governs the development of magnetic hyperfine fields in the residual amorphous matrix even if this was fully paramagnetic in the as-quenched state. The development of hyperfine interactions is discussed as a function of annealing temperature and composition of the investigated alloys. 57 Fe Mössbauer spectrometry was used as a principal analytical method. Additional information related to the structural arrangement is obtained from X-ray diffractometry. It is shown that in the as-quenched state, the relative fraction of magnetic hyperfine interactions increases as the amount of B rises. In partially crystalline samples, the contribution of magnetic hyperfine interactions inside the retained amorphous matrix increases with annealing temperature even though the relative fraction of amorphous magnetic regions decreases.

show abstract

“…Mössbauer spectroscopy (MS) is a method that directly correlates magnetic states of the studied materials with their structure through hyperfine interactions [7][8][9][10]23]. It is, however, quite time consuming and thus not suitable for observation of rapid dynamic processes.…”

Section: Nuclear Forward Scattering Of Synchrotron Radiation (Nfs)mentioning

confidence: 99%

“…In our earlier works, we used differential scanning calorimetry (DSC), X-ray diffraction, transmission electron microscopy, high resolution electron microscopy, electron diffraction, scanning microscopy, Mössbauer spectrometry, nuclear magnetic resonance spectroscopy, atomic field microscopy and conventional magnetic measurements [7][8][9][10][11][12]. Nevertheless, the majority of these techniques can provide only ex situ information as the time needed for acquisition of sufficiently good statistics of the experimental data frequently extends over several tens of minutes or even hours.…”

Section: Introductionmentioning

confidence: 99%

Evolution of structure and local magnetic fields during crystallization of HITPERM glassy alloys studied by in situ diffraction and nuclear forward scattering of synchrotron radiation

Miglierini

Pavlovič

Procházka

et al. 2015

Phys. Chem. Chem. Phys.

View full text Add to dashboard Cite

Evolution of structure and local magnetic fields in (Fe1-xCox)76Mo8Cu1B15 (HITPERM) metallic glass ribbons with various amounts of Co (x = 0, 0.25, 0.5) were studied in situ using diffraction and nuclear forward scattering of synchrotron radiation. It was found that crystallization for all three glasses proceeds in two stages. In the first stage, bcc (Fe,Co) nanocrystals are formed, while in the second stage additional crystalline phases evolve. For all three glasses, the crystallization temperatures at the wheel side were found to be lower than at the air side of the ribbon. The crystallization temperatures were found to decrease with increasing Co content. The lattice parameters of the bcc nanocrystals decrease up to about 550 °C and then increase pointing to squeezing Mo atoms out of the nanograins or to interface effects between the nanocrystals and the glassy matrix. Nuclear forward scattering enabled separate evaluation of the contributions that stem from structurally different regions within the investigated samples including the newly formed nanocrystals and the residual amorphous matrix. Even minor Co content (x = 0.25) has a substantial effect not only upon the magnetic behaviour of the alloy but also upon its structure. Making use of hyperfine magnetic fields, it was possible to unveil structurally diverse positions of Fe atoms that reside in a nanocrystalline lattice with different number of Co nearest neighbours.

show abstract

Erratum: “Structure, hyperfine interactions, and magnetic behavior of amorphous and nanocrystalline Fe80M7B12Cu1 (M=Mo,Nb,Ti) alloys” [J. Appl. Phys. 85, 1014 (1999)]

Cited by 13 publications

References 0 publications

Magnetic Microstructure of Nanocrystalline Fe80Nb7Cu1B12 Alloy Investigated by M�ssbauer Spectrometry

Magnetic Microstructure of Nanocrystalline Fe80Nb7Cu1B12 Alloy Investigated by M�ssbauer Spectrometry

Influence of composition on hyperfine interactions in FeMoCuB nanocrystalline alloy

Evolution of structure and local magnetic fields during crystallization of HITPERM glassy alloys studied by in situ diffraction and nuclear forward scattering of synchrotron radiation

Contact Info

Product

Resources

About