Neutron diffraction study of the (, 0.7 and 1) compounds and the general description of the magnetic behavior of Mn in and

Dinçer, I.; Elerman, Y.; Elmalı, Ayhan; Ehrenberg, Helmut; André, G.

doi:10.1016/j.jmmm.2006.12.032

Cited by 33 publications

(33 citation statements)

References 24 publications

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“…Because of the contraction on a and expansion on c, an identical canting angle for the antiferromagnetic and ferromagnetic structures is excluded. La 0.6 Pr 0.4 Mn 2 Si 2 reveals a single ferromagnetic phase above 240 K, and the Rietveld refinements indicate different canting angles for the antiferromagnetic and ferromagnetic structures [2]. Therefore the model proposed in Ref.…”

Section: Abstract: Deficiency Ferromagnetism Manganitesmentioning

confidence: 79%

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Effect of monovalent doping in the A site on structural and physical properties of La_1−xCa_xMnO₃manganese oxides

Cheikhrouhou¹,

Cheikhrouhou‐Koubaa²,

Mehri³

et al. 2007

Acta Cryst Sect A

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Section: Abstract: Deficiency Ferromagnetism Manganitesmentioning

confidence: 79%

“…The spontaneous volume change and linear magnetostriction are derived. The maximum value of the spontaneous volume magnetostriction is about -0.37% at 50 K [2].…”

Section: Abstract: Deficiency Ferromagnetism Manganitesmentioning

confidence: 92%

Effect of monovalent doping in the A site on structural and physical properties of La_1−xCa_xMnO₃manganese oxides

Cheikhrouhou¹,

Cheikhrouhou‐Koubaa²,

Mehri³

et al. 2007

Acta Cryst Sect A

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“…These compounds are of particular interest, because both R and Mn atoms carry a magnetic moment. The total value of the Mn moment is about (2.4-3.3) µ B for the RMn 2 Ge 2 compounds [6][7][8].…”

Section: Introductionmentioning

confidence: 93%

“…The magnetic phase sequence for SmMn 2 Ge 2 and R 1−x R x Mn 2 Ge 2 (R, R -rare earths) compounds. P -paramagnetic phase, AF2 -antiferromagnetic collinear structure, F2 -canted ferromagnetic structure, AF1 -canted antiferromagnetic structure, F1 -reentrant ferromagnetic phase of Mn and Sm sublattice [6][7][8][9]. Fig.…”

Section: Introductionmentioning

confidence: 99%

Magnetic Properties and Magnetocaloric Effect οf R_1-xR'_xMn₂Ge₂Compounds

Duraj

Szytuła

2010

Acta Phys. Pol. A

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The magnetic and magnetocaloric properties of Sm 1−x Gd x Mn 2 Ge 2 compounds with 0 ≤ x ≤ 0.10 have been studied. SmMn 2 Ge 2 is antiferromagnetic below the Néel temperature T N (≈ 400 K). Further cooling leeds to canted ferromagnetic phase below T C = 341 K. With decreasing temperature, two metamagnetic phase transitions are observed: F2-AF1 at T 2 = 153 K and AF1-F1 at T 1 = 106 K. The maximum values of magnetic entropy change |∆S m | are found to be 1.5 J K −1 kg −1 at T 1 and 2.0 J K −1 kg −1 at T 2 in SmMn 2 Ge 2 . The MCE is found to increase with Gd concentration, |∆S m (T 1 )| = 3.3 J K −1 kg −1 , while |∆S m (T 2 )| is slightly enhanced for x = 0.1. The magnetocaloric effect is found to be positive at T 1 and negative at T 2 .

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“…[1][2][3], such rare earth (R)-transition metal intermetallic compounds have attracted additional attention due to their magnetocaloric behaviour at selected magnetic transitions [e.g. [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Magnetism and the magnetocaloric effect in PrMn1.6Fe0.4Ge2

2012

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The magnetic and magnetocaloric properties of PrMn1.6Fe0.4Ge2around the ferromagnetic transitions T C inter ~ 230 K and T C Pr ~ 30 K have been investigated by magnetisation, 57Fe Mössbauer spectroscopy and electron paramagnetic resonance (EPR) measurements over the temperature range 5-300 K. The broad peaks in magnetic entropy around TC inter (intralayer antiferromagnetism of the Mn sublattice to canted ferromagnetism) and TC Pr (onset of ferromagnetic order of Pr sublattice in addition to ferromagnetically ordered Mn sublattice) are typical of second order transitions with maximum entropy values of -ΔS M ~ 2.0 J/kg K and -ΔS M ~ 2.2 J/kg K respectively for ΔB = 0-6 T. The EPR signal around T = 48 K of g value g ~ 0.8 is consistent with paramagnetic free ion Pr3 + . Below TC Pr ~ 30 K the g value increases steadily to g ~ 2.5 at 8 K as saturation of the Pr3 + ion is approached. The EPR measurements indicate additional effects in this system below T ~ 20 K with the appearance of EPR signals of low g value g ~ 0.6.

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Neutron diffraction study of the (, 0.7 and 1) compounds and the general description of the magnetic behavior of Mn in and

Cited by 33 publications

References 24 publications

Effect of monovalent doping in the A site on structural and physical properties of La_1−xCa_xMnO₃manganese oxides

Effect of monovalent doping in the A site on structural and physical properties of La_1−xCa_xMnO₃manganese oxides

Magnetic Properties and Magnetocaloric Effect οf R_1-xR'_xMn₂Ge₂Compounds

Magnetism and the magnetocaloric effect in PrMn1.6Fe0.4Ge2

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Neutron diffraction study of the (, 0.7 and 1) compounds and the general description of the magnetic behavior of Mn in and

Cited by 33 publications

References 24 publications

Effect of monovalent doping in the A site on structural and physical properties of La1−xCaxMnO3manganese oxides

Effect of monovalent doping in the A site on structural and physical properties of La1−xCaxMnO3manganese oxides

Magnetic Properties and Magnetocaloric Effect οf R1-xR'xMn2Ge2Compounds

Magnetism and the magnetocaloric effect in PrMn1.6Fe0.4Ge2

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Effect of monovalent doping in the A site on structural and physical properties of La_1−xCa_xMnO₃manganese oxides

Effect of monovalent doping in the A site on structural and physical properties of La_1−xCa_xMnO₃manganese oxides

Magnetic Properties and Magnetocaloric Effect οf R_1-xR'_xMn₂Ge₂Compounds