Spin-glass behavior in CeCuxNi4−xMn and Ce0.9Nd0.1Ni4Mn compounds

Toliński, T.; Synoradzki, K.

doi:10.1016/j.intermet.2010.09.007

Cited by 15 publications

(26 citation statements)

References 16 publications

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“…We have additionally shown that a partial substitution of Cu in the place of Ni or Nd in the place of Ce in the ferromagnetically ordered CeNi 4 Mn compound leads also to the spin-glass-like behavior [4].…”

Section: Introductionmentioning

confidence: 76%

“…For the CeCu 4 Mn compound, our recent results of the AC susceptibility, eld-cooled (FC) and zero-eld-cooled (ZFC) DC magnetization and remanent magnetization relaxation have shown the typical spin-glass (SG) behavior [4]. The AC susceptibility measurements revealed a shift of the characteristic peak to higher temperatures with the increasing frequency.…”

Section: Introductionmentioning

confidence: 93%

“…Later studies classied this compound rather as a semimetal [2]. In CeNi 4 Mn the main contribution to the magnetic moment is carried by the Mn atoms. The rest of the magnetic moment is mainly due to the four Ni atoms, which together gives 1.1 µ B /f.u., supplemented by a small contribution of the antiferromagnetically polarized Ce (−0.14 µ B /f.u) [3].…”

Section: Introductionmentioning

confidence: 99%

“…In this paper we describe our studies of C p as a function of temperature and magnetic eld for selected representatives of the Ce(Ni 1−x Cu x ) 4 Mn series of compounds.…”

Section: Introductionmentioning

confidence: 99%

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Specific Heat of the Ce(Ni_{1 - x}Cu_x)₄Mn Compounds

Synoradzki

Toliński

2012

Acta Phys. Pol. A

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Specic heat of the Ce(Ni1−xCux)4Mn compounds has been studied. The samples are prepared by induction melting and it is found, based on the X-ray diraction, that all the compounds keep the CaCu5-type structure. This series exhibits a transition between the ferromagnetically ordered CeNi4Mn and the spin-glass CeCu4Mn compounds, which is well visible in the measurements of the ac susceptibility peak as a function of the magnetic eld frequency and in the magnetization relaxation. In the present research we explore the behavior of the specic heat for various x. The changes of the electronic specic heat coecient γ are determined by analysis of the low temperature part of the Cp/T (T 2 ) dependence. We also observe that the magnetic phase transition is only detectable in the specic heat signal after extraction of the magnetic contribution of the Mn atoms. This is carried out by subtraction of the specic heat of the reference sample.

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Section: Introductionmentioning

confidence: 76%

Section: Introductionmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

“…In this paper we describe our studies of C p as a function of temperature and magnetic eld for selected representatives of the Ce(Ni 1−x Cu x ) 4 Mn series of compounds.…”

Section: Introductionmentioning

confidence: 99%

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Specific Heat of the Ce(Ni_{1 - x}Cu_x)₄Mn Compounds

Synoradzki

Toliński

2012

Acta Phys. Pol. A

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“…In the previous study [1,2] we have shown for CeCuNi 3 Mn that the Cu substitution develops a spin-glass (SG) state. To further investigate this SG behaviour we have now prepared a number of samples in the series Ce(Cu x Ni 1−x ) 4 Mn.…”

Section: Introductionmentioning

confidence: 99%

Magnetic Properties of Ce(Cu_{x}Ni_{1-x})_{4}Mn Compounds

Synoradzki

Toliński

2014

Acta Phys. Pol. A

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The Ce(CuxNi1−x)4Mn series of compounds has been studied for a wide range of the x values. The magnetic properties are determined from the temperature dependence of the dc and ac magnetization. A large irreversibility is observed between the zero-eld cooled (ZFC) and eld-cooled (FC) curves with a maximum in the ZFC one.The ac magnetic susceptibility also shows a peak, which shifts to higher temperatures with increasing frequencies, which is typically observed in spin-glass (SG) systems. The observation of the SG behaviour is further supported by a very slow decay of the isothermal remanent magnetization and by the typical shape of the magnetization curves. A range of x values showing the para-ferromagnetic-SG transitions has been found.

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