Antiferromagnetic ordering below 1.7K in PrIr2Ge2

Anand, V. K.; Hossain, Zakir; Ramakrishnan, S.

doi:10.1016/j.jallcom.2010.11.095

Cited by 1 publication

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“…For magnetic structures, one can expect the ordering temperature to coincide approximately with the paramagnetic Weiss temperature, giving a ratio |Θ|/ T C close to 1. , For antiferromagnetic interactions ( T C = T N ), this ratio can deviate slightly. Examples include Eu 2 AuGe 3 (|Θ|/ T N = 0.73), PrIr 2 Ge 2 (|Θ|/ T N = 2.3), and CeRuSn (|Θ|/ T N = 3.7) . In magnetically frustrated systems, a large deviation between Θ and T N is observed as the spins cannot order despite strong exchange interactions.…”

Section: Resultsmentioning

confidence: 99%

“…53,54 For antiferromagnetic interactions (T C = T N ), this ratio can deviate slightly. Examples include Eu 2 AuGe 3 (|Θ|/T N = 0.73), 7 PrIr 2 Ge 2 (|Θ|/T N = 2.3), 55 and CeRuSn (|Θ|/T N = 3.7). 56 In magnetically frustrated systems, a large deviation between Θ and T N is observed as the spins cannot order despite strong exchange interactions.…”

Section: Journal Of the American Chemical Societymentioning

confidence: 99%

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Structures and Phase Transitions of CePd_3+xGa_8-x: New Variants of the BaHg₁₁ Structure Type

et al. 2012

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New distorted variants of the cubic BaHg11 structure type have been synthesized in Ga flux. Multiple phases of CePd3+xGa8-x, which include an orthorhombic Pmmn structure (x = 3.21(2)), a rhombohedral R3m structure (x = 3.13(4)), and a cubic Fm3m superstructure (x = 2.69(6)), form preferentially depending on reaction cooling rate and isolation temperature. Differential thermal analysis and in situ temperature-dependent powder X-ray diffraction patterns show a reversible phase transition at approximately 640 °C between the low temperature orthorhombic and rhombohedral structures and the high temperature cubic superstructure. Single crystal X-ray diffraction experiments indicate that the general structure of BaHg11, including the intersecting planes of a kagomé-type arrangement of Ce atoms, is only slightly distorted in the low temperature phases. A combination of Kondo, crystal electric field, and magnetic frustration effects may be present, resulting in low temperature anomalies in magnetic susceptibility, electrical resistivity, and heat capacity measurements. In addition to CePd3+xGa8-x, the rare earth analogues REPd3+xGa8-x, RE = La, Nd, Sm, Tm, and Yb, were successfully synthesized and also crystallize in one of the lower symmetry space groups.

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Section: Resultsmentioning

confidence: 99%

Section: Journal Of the American Chemical Societymentioning

confidence: 99%

Structures and Phase Transitions of CePd_3+xGa_8-x: New Variants of the BaHg₁₁ Structure Type

et al. 2012

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Antiferromagnetic ordering below 1.7K in PrIr2Ge2

Cited by 1 publication

References 34 publications

Structures and Phase Transitions of CePd_3+xGa_8-x: New Variants of the BaHg₁₁ Structure Type

Structures and Phase Transitions of CePd_3+xGa_8-x: New Variants of the BaHg₁₁ Structure Type

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Antiferromagnetic ordering below 1.7K in PrIr2Ge2

Cited by 1 publication

References 34 publications

Structures and Phase Transitions of CePd3+xGa8-x: New Variants of the BaHg11 Structure Type

Structures and Phase Transitions of CePd3+xGa8-x: New Variants of the BaHg11 Structure Type

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Structures and Phase Transitions of CePd_3+xGa_8-x: New Variants of the BaHg₁₁ Structure Type

Structures and Phase Transitions of CePd_3+xGa_8-x: New Variants of the BaHg₁₁ Structure Type