Magnetic structure of the random system near the ferro-antiferromagnetic transition

Mokhov, B. N.; Puzei, I. M.; Tret'yakov, B. N.; Makarov, V. A.; Goman'kov, V. I.; Tokmakova, B.N.; Tret'yakova, S. M.; Agaronik, B.Ya.; Basargin, O. V.

doi:10.1016/0304-8853(80)90531-4

Cited by 11 publications

(2 citation statements)

References 21 publications

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“…7,8) Mokhov and coworkers studied the magnetic structure of the Fe 65 (Ni 1Àx Mn x ) 35 system by neutron diffraction, small angle neutron scattering (SANS), Mössbauer effect, magnetization, thermal expansion, and resistivity measurements. [9][10][11] They concluded that the alloys of x ¼ 0:37 and 0.28 contain regions with a long-range antiferromagnetic order as well as ferromagnetic regions. For the alloy of x ¼ 0:20, a long-range ferromagnetic order appears below T $ 160 K. Below T $ 100 K, it transforms to a spin-glass state.…”

Section: Introductionmentioning

confidence: 99%

Magnetic Field Dependence of Magnetic Clusters in the Random Magnet Fe₆₅(Ni_0.78Mn_0.22)₃₅

2009

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A neutron scattering study on a concentrated spin-glass alloy Fe 65 (Ni 0:78 Mn 0:22 ) 35 has been performed under magnetic field. The amplitude of the magnetic diffuse scattering pattern arising from short-range ferromagnetic correlations is markedly reduced by increasing magnetic field. On the other hand, the effect of external field on the diffuse scattering pattern arising from antiferromagnetic short-range correlations is small. These results show that the regions of ferromagnetic and antiferromagnetic shortrange correlations (ferromagnetic and antiferromagnetic clusters) coexist separately in this random magnetic material.

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Section: Introductionmentioning

confidence: 99%

Magnetic Field Dependence of Magnetic Clusters in the Random Magnet Fe₆₅(Ni_0.78Mn_0.22)₃₅

2009

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“…Mokhov et al reported that the alloys of x ¼ 0:37 and x ¼ 0:28 contain regions with a long-range AFM order as well as FM regions. [20][21][22] On going to smaller x, the number of the FM regions increases, causing them to overlap. For the alloy of x ¼ 0:20, a long-range FM order appears below T C $ 160 K. Below T $ 100 K, a dramatic change of the magnetic state takes place, which has been interpreted as due to a SG freezing.…”

Section: Introductionmentioning

confidence: 99%

Long-Time Variation of Magnetization in Concentrated Spin-Glasses

Hioki

Motoya

2005

J. Phys. Soc. Jpn.

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Time variations of magnetization MðtÞ in reentrant spin-glass (RSG) alloys Fe 65 (Ni 0:866 Mn 0:134 ) 35 , Fe 65 (Ni 0:60 Mn 0:40 ) 35 and Fe 0:70 Al 0:30 , together with a typical spin-glass alloy Cu 0:95 Mn 0:05 , have been measured under various combinations of temperature (T), magnetic field (H) and waiting time (t w ). The observed MðtÞ for all samples under various combinations of T, H and t w can be traced by a newly proposed function within the time range 12 < t < 10 5 s. The time variation behavior for each measurement is well represented by a characteristic time t max which corresponds to the maximum position of the relaxation rate SðtÞ. The characteristics of long-time variation of MðtÞ in the RSG materials have been discussed based on a magnetic cluster model.

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The Magnetic Behaviour of the Pseudobinary Compounds Gd₂Au_xAu_xAl_1−x

Bredimas

Gamari‐Seale

Papatriantafillou

1984

Physica Status Solidi (b)

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The Magnetic Behaviour of the Pseudobinary Compounds GdgAu,Ali-, BY V. BRI~DXMAS~), H. GAMARX-SEALE, and C. PAPATRIANTAFXLLOU 527 Theoretical calculations and experimental results are presented on the magnetic behaviour of Gd,AuxAll-, for x E [O, 11. While the theoretical calculations using the mean field approximation and RKKY theory indicate antiferromagnetic ordering for x < 0.2 and ferromagnetic ordering for z > 0.2, susceptibility measurements indicate a rather complicated situation with two transitions in the vicinity of 200 and 25 K (dependent on 2). Cluster formation is observed and shape effects are present. Es werden theoretische Berechnungen und experimentelle Ergebnisse des magnetischen Verhaltens von Gd,Au,AlI-, fur x E [0,1] mitgeteilt. Wahrend die theoretischen Berechnungen mit der"mean-field"-Naherung und der RKKY-Theorie antiferromagnetische Ordnung fur z < 0,2 und ferromagnetische Ordnung fur z > 0,2 angeben, zeigen die Suszeptibilitatsmessungen eine ziemlich kompliziertes Bild mit zwei tfbergiingen in der NLhe von 200 und 25 K (abhangig von x).Clusterbildung und Formeinflusse werden beobachtet.

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Magnetic structure of the random system near the ferro-antiferromagnetic transition

Cited by 11 publications

References 21 publications

Magnetic Field Dependence of Magnetic Clusters in the Random Magnet Fe₆₅(Ni_0.78Mn_0.22)₃₅

Magnetic Field Dependence of Magnetic Clusters in the Random Magnet Fe₆₅(Ni_0.78Mn_0.22)₃₅

Long-Time Variation of Magnetization in Concentrated Spin-Glasses

The Magnetic Behaviour of the Pseudobinary Compounds Gd₂Au_xAu_xAl_1−x

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Magnetic structure of the random system near the ferro-antiferromagnetic transition

Cited by 11 publications

References 21 publications

Magnetic Field Dependence of Magnetic Clusters in the Random Magnet Fe65(Ni0.78Mn0.22)35

Magnetic Field Dependence of Magnetic Clusters in the Random Magnet Fe65(Ni0.78Mn0.22)35

Long-Time Variation of Magnetization in Concentrated Spin-Glasses

The Magnetic Behaviour of the Pseudobinary Compounds Gd2AuxAuxAl1−x

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Magnetic Field Dependence of Magnetic Clusters in the Random Magnet Fe₆₅(Ni_0.78Mn_0.22)₃₅

Magnetic Field Dependence of Magnetic Clusters in the Random Magnet Fe₆₅(Ni_0.78Mn_0.22)₃₅

The Magnetic Behaviour of the Pseudobinary Compounds Gd₂Au_xAu_xAl_1−x