The x-T magnetic phase diagram of the LaMn2 − xFexGe2 (0≤x≤1) system by neutron diffraction study

Norlidah, M.N.; Venturini, G.; Malaman, B.; Ressouche, E.

doi:10.1016/s0925-8388(96)02667-9

Cited by 25 publications

(21 citation statements)

References 12 publications

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“…When Mn is substituted by other 3d elements in RMn 2 X 2 compounds, the Curie and Néel temperatures associated with the Mn sub-lattice drop with increasing transition metal content. This effect is clearly observed in LaMn 2- [18] where a number of magnetic transitions are found within the temperature range of about 400 K down to the low temperatures. This paper deals with the crystal structure and the magnetic phase diagram of the LaMn 2-x Fe x Si 2 silicides to elucidate the effects of the Ni substitution for Mn.…”

Section: Introductionmentioning

confidence: 73%

Low‐field magnetic behavior of LaMn_2–xNi_xSi₂ silicides

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Kılıç

Kervan

2004

Physica Status Solidi (b)

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We have performed X-ray diffraction (XRD) and AC magnetic susceptibility measurements on polycrystalline LaMn 2-x Ni x Si 2 (0.0 ≤ x ≤ 2.0) silicides for magnetic characterization in fields of about a few Oe at a temperature range 15 -325 K. All compounds crystallize in the naturally layered ThCr 2 Si 2 -type structure with the space group I4/mmm. Substitution of Ni for Mn leads to a linear decrease in the lattice constant c and the unit cell volume, while it gives rise to a change of magnetic properties from ferromagnetic to antiferromagnetic behavior for small values of x < 1. The sample with x = 0.8 has a Néel temperature of about 35 K, associated with anti-ferromagnetic behavior. However, for x = 1, anti-ferromagnetic behavior is diminished and paramagnetic behavior becomes dominant. For x = 2, the sample becomes virtually nonmagnetic. The samples with x ≤ 0.5 exhibit mixed magnetic properties composed of ferromagnetic and anti-ferromagnetic interactions, below the Curie temperature T C (Mn). The results are collected in the magnetic phase diagram.

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Section: Introductionmentioning

confidence: 73%

Low‐field magnetic behavior of LaMn_2–xNi_xSi₂ silicides

Gençer

Kılıç

Kervan

2004

Physica Status Solidi (b)

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“…When Mn is replaced by other 3d elements in the RMn 2 X 2 compounds, the Curie and Néel temperatures associated with the Mn sublattice drop with increasing transition metal content. This effect is clearly observed in LaMn 2−x Cu x Ge 2 [13], LaMn 2−x Fe x Ge 2 [14], LaMn 2−x Fe x Si 2 [18], NdMn 2−x Fe x Ge 2 [20] and PrMn 2−x Fe x Ge 2 [21], where a number of magnetic transitions are found within the temperature range of about 400 K down to the lowest temperatures. This paper deals with the crystal structure and the magnetic phase diagram of the LaMn 2−x Cu x Si 2 silicides to elucidate the effects of the Cu substitution for Mn.…”

Section: Introductionmentioning

confidence: 81%

“…The in-plane antiferromagnetism can be commensurate or incommensurate with the lattice periodicity. When R is a heavy rare-earth element in RMn 2 X 2 , the moments in the Mn layers align parallel along the c-axis, with no in-plane component [9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Magnetic phase diagram of the intermetallic LaMn2−Cu Si2 silicides

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Kervan

Gençer

2004

Journal of Alloys and Compounds

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“…The in-plane antiferromagnetism can be commensurate or incommensurate with the lattice periodicity. When R is a heavy rare-earth element in RMn 2 Ge 2 , the moments in the Mn layers align parallel along the c-axis, and there is no in-plane component [15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%