Equiatomic ternary rare earth-transition metal silicides, germanides and gallides

Hovestreydt, E.; Engel, N.; Klepp, К. О.; Chabot, B.; Parthé, E.

doi:10.1016/0022-5088(82)90075-3

Cited by 222 publications

(89 citation statements)

References 32 publications

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“…It has been reported that HT-LuAgSn crystallizes in NdPtSb type structure [114]. RIrAl (R=Ce-Nd, Sm, Gd-Tm, Lu, Y) [115], RIrGa (R=La-Nd, Gd-Tm, Y) [67,70] RIrGe (R=Ce, Gd-Er) [67,116,117], CeIrSb [118] and YbIrGe [119] compounds crystallize in TiNiSi type structure. Like CeRhAl, Ce in CeIrAl is reported to be in the tetravalent state [115].…”

Section: Introductionmentioning

confidence: 99%

“…RPtAl (R=Sm, Gd-Tm, Lu, Y) [83], RPtGa (R=La-Nd, Sm, Gd-Lu, Y), RPtSi (R=Tb-Tm, Lu, Y) and RPtGe (R=Sm, Gd-Tm, Y) compounds crystallize in TiNiSi type orthorhombic structure, while RPtGe (R=Ce-Nd) crystallizes in CeCu2 type orthorhombic crystal structure [67]. RPtIn (R=La-Nd, Sm, Gd-Lu, Y) compounds crystallize in ZrNiAl type hexagonal structure [122,123, 124, 125 and ref.…”

Section: Introductionmentioning

confidence: 99%

“…RPtIn (R=La-Nd, Sm, Gd-Lu, Y) compounds crystallize in ZrNiAl type hexagonal structure [122,123, 124, 125 and ref. therein] and RPtSi (R=La-Nd, Sm, Gd) compounds crystallize in LaPtSi tetragonal structure [67]. EuPtIn crystallizes in TiNiSi type orthorhombic structure [126].…”

Section: Introductionmentioning

confidence: 99%

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Review on magnetic and related properties of RTX compounds

Gupta

Суреш

2015

Journal of Alloys and Compounds

253

124

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RTX (R=rare earths, T= 3d/4d/5d, transition metals such as Sc, Ti, Mn, Fe, Co, Ni, Cu, Ru, Rh, Pd, Ag, Os, Ir, Pt, Au, and X=p-block elements such as Al, Ga, In, Si, Ge, Sn, As, Sb, Bi) series is a huge family of intermetallics compounds. These compounds crystallize in different crystal structures depending on the constituents. Though these compounds have been known for a long time, they came to limelight recently in view of the large magnetocaloric effect (MCE) and magnetoresistance (MR) shown by many of them. Most of these compounds crystallize in hexagonal and tetragonal crystal structures. Some of them show crystal structure modification with annealing temperature; while a few of them show iso-structural transition in the paramagnetic regime. Their magnetic ordering temperatures vary from very low temperatures to temperatures well above room temperature (~510 K). Depending on the crystal structure, they show a variety of magnetic and electrical properties.These compounds have been characterized by means of a variety of techniques/measurements such as x-ray diffraction, neutron diffraction, magnetic properties, heat capacity, magnetocaloric properties, electrical resistivity, magnetoresistance, thermoelectric power, thermal expansion, Hall effect, optical properties, XPS, Mössbauer spectroscopy, ESR, μSR, NMR, NQR etc. Some amount of work on theoretical calculations on electronic structure, crystal field interaction and exchange interactions has also been reported. The interesting aspect of this series is that they show a variety of physical properties such as Kondo effect, heavy fermion behavior, spin glass state, intermediate valence, superconductivity, multiple magnetic transitions, metamagnetism, large MCE, large positive as well as negative MR, spin orbital compensation, magnetic polaronic behavior, pseudo gap effect etc.Except Mn, no other transition metal in these compounds possesses considerable magnetic moments.Because of this RMnX compounds in general have high ordering temperatures. Interstitial modification using hydrogen and nitrogen is found to alter their crystal structures and magnetic properties considerably. RTX compounds also show interesting pressure effects on their structural and magnetic properties. In summary, these compounds show variety of physical properties over a wide range of temperatures. This review is intended to cover all the important results obtained in this family, particularly in the last few years.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Review on magnetic and related properties of RTX compounds

Gupta

Суреш

2015

Journal of Alloys and Compounds

253

124

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“…Former phase analytical work done by Braun et al [2] in the system ScRh-Si revealed the existence of 9 ternary phases. However, later on only ScRhSi [3], ScRhSi 2 [4], ScRh 3 Si 7 [5] and Sc 5 Rh 4 Si 10 [6] were structurally characterized, the latter only from powder data. Four ternary phases have been reported in the System Sc-Ir-Si, but only the structures of ScIr 3 Si 7 [5] and Sc 5 Ir 4 Si 10 [6] are known from single crystal work.…”

Section: Introductionmentioning

confidence: 99%

New Scandium Platinum Silicides: ScPt₂Si with ‘Inverse’ MgCuAl₂ Structure and Sc₅Pt₉Si₇, a Variant of the Zr₂Fe₁₂P₇‐Type

Lorenz

Jung

2009

Zeitschrift anorg allge chemie

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Abstract. Two new scandium platinum silicides, ScPt 2 Si (orthorhombic, Cmcm, a = 3.6653(6) Å, b = 9.831(1) Å, c = 6.967(1) Å, Z = 4) and Sc 5 Pt 9 Si 7 (hexagonal, P 6, a = 9.9418(5) Å, c = 3.8832(2) Å, Z = 1) were prepared by reaction of the elements in an electric arc furnace and subsequent annealing. The crystal structures were solved and refined from single crystal diffraction data. ScPt 2 Si crystallizes with an 'inverse' MgCuAl 2 structure while Sc 5 Pt 9 Si 7 forms a variant of the Zr 2 Fe 12 P 7 type.

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“…The AI atom is surrounded by a tetragonal pyramid of five Pd atoms, while the Ce atom is surrounded by a tetrahedron of four Pd atoms. The structure of CePdAI is a further example which obeys the rule, demonstrated by Hovestreydt et al (1982) …”

Section: Structure Of Cepdaimentioning

confidence: 93%

Structure of CePdAl

Xue¹,

Schwer²,

Hulliger³

1994

Acta Crystallogr C

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Equiatomic ternary rare earth-transition metal silicides, germanides and gallides

Cited by 222 publications

References 32 publications

Review on magnetic and related properties of RTX compounds

Review on magnetic and related properties of RTX compounds

New Scandium Platinum Silicides: ScPt₂Si with ‘Inverse’ MgCuAl₂ Structure and Sc₅Pt₉Si₇, a Variant of the Zr₂Fe₁₂P₇‐Type

Structure of CePdAl

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Equiatomic ternary rare earth-transition metal silicides, germanides and gallides

Cited by 222 publications

References 32 publications

Review on magnetic and related properties of RTX compounds

Review on magnetic and related properties of RTX compounds

New Scandium Platinum Silicides: ScPt2Si with ‘Inverse’ MgCuAl2 Structure and Sc5Pt9Si7, a Variant of the Zr2Fe12P7‐Type

Structure of CePdAl

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New Scandium Platinum Silicides: ScPt₂Si with ‘Inverse’ MgCuAl₂ Structure and Sc₅Pt₉Si₇, a Variant of the Zr₂Fe₁₂P₇‐Type