Magnetic Properties of Fe65(Ni1-xMnx)35 Alloys under Hydrostatic Pressure

Nakamura, Yoshinari; Hayase, Masutaro; Shiga, M.; Miyamoto, Yoshinari; Kawai, Naoto

doi:10.1143/jpsj.30.720

Cited by 42 publications

(4 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This relation has been reported for crystalline Fe 65 (Ni 1−x Mn x ) 35 alloys (Nakamura et al 1971), non-stoichiometric Ni 3 Al compounds (Buis et al 1976) and crystalline Ni-Cr alloys (Tange et al 1981). Such behaviour would be explained by considering a large compressibility κ (Tange et al 1981) and additionally a positive Landau coefficient obtained from the Arrott plot (Edwards and Wohlfarth 1968).…”

Section: Resultssupporting

confidence: 64%

See 1 more Smart Citation

Pressure effect on the magnetic properties of amorphous alloys composed of icosahedral clusters

Fukamichi

Chiang

Goto

1997

J. Phys.: Condens. Matter

View full text Add to dashboard Cite

The pressure effects on the magnetic properties have been investigated for amorphous alloys prepared by high-rate DC sputtering. The pressure derivatives of magnetization and the Curie temperature are significantly large. The concentration dependences of and are similar to those of various magnetovolume and magnetoelastic properties such as the spontaneous volume magnetostriction , forced volume magnetostriction and compressibility . The pressure derivative of the Curie temperature is also large, and the linear relation of versus plot is accounted for by taking inhomogeneity into consideration. The linear plot of versus is explained in terms of spin fluctuations. In connection with the peculiar amorphous structure composed of icosahedral clusters, both and are different from those of amorphous Fe-based binary alloys. The value of determined from the pressure dependence of the spin-wave stiffness constant D is reasonable. The spin freezing temperature is increased with increasing pressure, consistent with the theory concerned with itinerant electron spin-glass systems.

show abstract

Section: Resultssupporting

confidence: 64%

“…0953-8984/97/286069+15$19.50 c 1997 IOP Publishing Ltd information. However, the study for amorphous alloys is not so active as that for crystalline alloys (Nakamura et al 1971).…”

Section: Introductionmentioning

confidence: 99%

Pressure effect on the magnetic properties of amorphous alloys composed of icosahedral clusters

Fukamichi

Chiang

Goto

1997

J. Phys.: Condens. Matter

View full text Add to dashboard Cite

show abstract

“…Another interesting aspect is the effect of pressure ( P ) on

T_{C}

, which has been in detail studied in three alloy systems: Fe–Ni, Fe–Pd and Fe–Pt by Wayne and Bartel (). Plotting the dependence they surprisingly found a single descending curve fitting roughly the empirical relation

\partial T_{C} / \partial P = - false(1600 / T_{C} false) {normalK}^{2} / normalkbar .

Nakamura et al () showed that Mn‐containing invar alloys also exhibited a rather similar behaviour where both

\partial ln T_{C} / \partial P

and the high field susceptibility

χ_{o}

varied in a parallel manner as Mn content was varied. Based on their findings, the authors concluded that the magnetoelastic coupling constant is insensitive on the chemical composition.…”

Section: Calphad Approaches For Magnetic Transitionsmentioning

confidence: 94%

Lambda transitions in materials science: Recent advances in CALPHAD and first‐principles modelling

Körmann

Breidi

Dudarev

et al. 2013

Physica Status Solidi (b)

View full text Add to dashboard Cite

211 6792 465 This paper provides a comprehensive overview of state-ofthe-art computational techniques to thermodynamically model magnetic and chemical order-disorder transitions. Recent advances as well as limitations of various approaches to these so-called lambda transitions are examined in detail, focussing on calphad models and first-principles methods based on density functional theory (DFT). On the one hand empirical implementations -based on the Inden-Hillert-Jarl formalismare investigated, including a detailed interpretation of the relevant parameters, physical limiting cases and potential extensions. In addition, Bragg-Williams-based approaches as well as cluster-variation methods of chemical order-disorder transitions are discussed. On the other hand, it is shown how magnetic contributions can be introduced based on various microscopic model Hamiltonians (Hubbard model, Heisenberg model and beyond) in combination with DFT-computed parameters. As a result of the investigation we were able to indicate similarities between the treatment of chemical and magnetic degrees of freedom as well as the treatment within the calphad and DFT approaches. Potential synergy effects resulting from this overlap have been derived and alternative approaches have been suggested, in order to improve future thermodynamic modelling of lambda transitions.

show abstract

“…The temperature dependence of the magnetization M for Fe65Ni35 was taken I Retat from [13,14]. The dependence of M on z, for Fe65Ni35 was calculated from Fe6@il -J4nJ3, data by combining ( d ~/ d x ) ~ taken from figure 3 and ( d M / ~3 x ) ~ from [32,33] yielding (dt,/dM),at x = 0. (Remark: results atx > 0, although determined as well, are not relevant for AG of Fe65Ni35).…”

Section: Experimental Determination Of Activation Parametersmentioning

confidence: 99%

Thermally activated dislocation glide in magnetic FeNi- invar alloys

Retat

1990

J. Phys.: Condens. Matter

View full text Add to dashboard Cite

The theory of thermally activated motion of dislocations yields a cusp in the graph of activation free enthalpy Delta G versus temperature when applied to FeNi-invar alloys. This is attributed to a magnetic induced hardening of FeNi. A theory of thermal activation is developed taking into account the magnetic hardening and the results are compared with CRSS and yield stress measurements of FeNi and FeNiMn alloys.

show abstract

Magnetic Properties of Fe₆₅(Ni_1-xMn_x)₃₅ Alloys under Hydrostatic Pressure

Cited by 42 publications

References 22 publications

Pressure effect on the magnetic properties of amorphous alloys composed of icosahedral clusters

Pressure effect on the magnetic properties of amorphous alloys composed of icosahedral clusters

Lambda transitions in materials science: Recent advances in CALPHAD and first‐principles modelling

Thermally activated dislocation glide in magnetic FeNi- invar alloys

Contact Info

Product

Resources

About