Structure and magnetic properties of the LaCo8P5-type compounds PrCo8P5 and EuCo8P5

Reehuis, M.; Jeitschko, Wolfgang; Mörsen, E.; Müller‐Warmuth, W.

doi:10.1016/0022-5088(88)90018-5

Cited by 24 publications

(8 citation statements)

References 11 publications

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“…One of the reasons for such a scenario might be the formation of other ternary phases that become thermodynamically preferable as one moves towards lanthanides with smaller ionic radii. A number of other rare‐earth cobalt phosphides with more complex structures are known, such as RE Co 3 P 2 ,8 RE Co 5 P 3 ,9 RE Co 8 P 5 ,10 RE 2 Co 12 P 7 ,11 and RE 5 Co 19 P 12 12. A careful examination of these compounds reveals structural elements related to RE Co 2 P 2 .…”

Section: Introductionmentioning

confidence: 99%

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Magnetism of Rare‐Earth Cobalt Phosphides GdCo₃P₂ and GdCo₅P₃

Thompson

Kovnir

Zhou

et al. 2011

Zeitschrift anorg allge chemie

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Magnetic properties of GdCo 3 P 2 and GdCo 5 P 3 are reported. Both compounds are paramagnetic at room temperature. GdCo 3 P 2 undergoes an antiferromagnetic transition due to the ordering of gadolinium magnetic moments at 16 K. The cobalt atoms do not contribute to the magnetism of this compound. The antiferromagnetic transition is shifted to lower temperatures by an applied magnetic field, reaching 12 K at 0.60 T. Such behavior is attributed to spin canting or spin reorientation at higher fields. No such abrupt transition is observed in GdCo 5 P 3 , but the field dependence of magnetization at 1.8 K indicates canted antiferromagnetism. In addition, observation of distinct peaks in the AC magnetic susceptibility at 66 K, 54 K, and 48 K suggests * Prof. Dr. M. Shatruk

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Section: Introductionmentioning

confidence: 99%

“…Magnetic properties of RE Co 2 P 2 have been studied in detail, [3–5,13–15] and the magnetic properties of RE Co 8 P 5 10 and RE 2 Co 12 P 7 16,17 were also investigated. Nothing is known, however, about the magnetic behavior of RE Co 3 P 2 and RE Co 5 P 3 .…”

Section: Introductionmentioning

confidence: 99%

Magnetism of Rare‐Earth Cobalt Phosphides GdCo₃P₂ and GdCo₅P₃

Thompson

Kovnir

Zhou

et al. 2011

Zeitschrift anorg allge chemie

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“…The structure of these phosphides was first determined for Zr 2 Fe 12 P7 (Ganglberger, 1968 a). The series RCo 5 P 3 crystallizes with YCo 5 P 3 -type structure (Meisen and Jeitschko, 1984a), RCo 3 P 2 with HoCo 3 P 2 -type structure (Jeitschko and Jakubowski, 1985;Chikhrii, Orishchin and Kuz 'ma, 1989), R5C019P12 with ScsCoi9Pi 2 -type structure (JakubowskiRipke and and RCo 8 P 5 with LaCo 8 P 5 -type structure (Meisen and Jeitschko, 1984b;Reehuis, Jeitschko, Mörsen and Müller-Warmuth, 1988). LaCo 5 P 3 has a structure (Davydov and Kuz'ma, 1981) which is different from that of YCo s P 3 , and ScCoP crystallizes with TiNiSitype structure (Jeitschko and Reinbold, 1985).…”

Section: Introductionmentioning

confidence: 97%

Crystal structure of the rare earth cobalt phosphides Ln₆Co₃₀P₁₉ (Ln = Er-Lu)

Jeitschko¹,

Jakubowski‐Ripke²

1993

Zeitschrift Für Kristallographie - Crystalline Materials

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Tin flux I Crystal chemistry / Metal-rich phosphides / Rare earth cobalt phosphides / Cobalt rare earth phosphidesAbstract. The new compounds Ln 6 Co 30 P 19 (Ln = Er, Tm, Yb and Lu) were prepared by reaction of the elemental components in a tin flux. They crystallize with a new structure type, which was determined from four-circle X-ray diffractometer data of Yb 6 Co 30 Pi9: space group P6 (No. 174), a = 1470.3(4) pm,c = 357.4(1) pm, Ζ = 1 ,R = 0.031 for 669 structure factors and 47 variable parameters. The structure is closely related to that of UCo 5 Si 3 (U 6 Co 30 Sii 8 ) from which it can be derived by filling an additional atomic site on one six-fold axis with phosphorus atoms. This lowers the symmetry from the centric space group P6 3 /m to the noncentric group P6 and doubles the number of positional parameters, all of which could be refined independently. Other examples with this space group ambiguity are given. Like Yb 6 Co 30 Pi9, many of these belong to a large family of structures with a metal to metalloid ratio close to 2:1.

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“…Exam ples are the series Ln2F e12P7, Ln2C o12P7 [1,2], Ln2N i12P7 [3], Ln2R h 12P7 [4]~LnFe5P3 [5]", LnC o5P3 [6 -8], LnNi5P3 [9,10], LnCo8P5 [11,12], Ln6Ni20P 13 [13], LnC o3P2 [8,14,15], Ln5C o19P ]2 [8,16], Ln5R u 19P 12 [17], LnNi4P2 [18], and Ln3Ni7P5 [19], A few corresponding actionoid transition metal phosphides have also been reported: Th6Co20P 13 [20], U 6R h20P ]3 [21] and U M n4P2 [22], Here we give a detailed account of our work on two m odifica tions o f U C r6P4. Exam ples are the series Ln2F e12P7, Ln2C o12P7 [1,2], Ln2N i12P7 [3], Ln2R h 12P7 [4]~LnFe5P3 [5]", LnC o5P3 [6 -8], LnNi5P3 [9,10], LnCo8P5 [11,12], Ln6Ni20P 13 [13], LnC o3P2 [8,14,15], Ln5C o19P ]2 [8,16], Ln5R u 19P 12 [17], LnNi4P2 [18], and Ln3Ni7P5 [19], A few corresponding actionoid transition metal phosphides have also been reported: Th6Co20P 13 [20], U 6R h20P ]3 [21] and U M n4P2 [22], Here we give a detailed account of our work on two m odif...…”

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confidence: 99%

Erziehung zur Gerechtigkeit – Pro erudicione ad iusticiam. Zu Entstehung und Tradierung des Bildes der hand- und augenlosen Iustitia im Codex Casanatensis 1404 in Mittelalter und Früher Neuzeit

Honemann¹

2013

Frühmittelalterliche Studien

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Tin Flux, Crystal Structure, Magnetic Properties, Structural Relationships U Cr6P4 was prepared from a tin flux in two forms at low (a) and high (ß) temperatures (880 °C and 1000 °C), respectively. The crystal structures o f both m odifications were deter mined from single-crystal data. a-U C r6P4: P6m 2 (N o. 187), a = 698.5(3) pm, c = 350.8(1) pm, Z = 1, R = 0.052 for 18 variable parameters and 410 structure factors; /?-UCr6P4: Pmmn (N o. 59), a = 698.6(1) pm, b = 350.85(4) pm, c = 1196.1(2) pm, Z = 2, R = 0.047 for 21 variables and 656 structure factors. Although the lattice constants o f both m odifications are closely re lated, the two forms can be transformed into each other only by a very sluggish, reconstructive phase transformation. Nevertheless, both structures have very similar coordination polyhedra. The U atom s have 6 P neighbours in trigonal prismatic arrangement. H a lf o f the Cr atoms have tetrahedral, the other half square pyramidal P coordinations. As is typical for phosphides with high metal content, all metal atoms additionally have many metal neighbours. The P at oms are located in trigonal prisms o f metal atom s with two or three additional metal atoms outside the rectangular faces o f the prisms. Both m odifications o f UCr6P4 show relatively high, almost temperature independent paramagnetism, as is frequently observerd for intermetallic phases o f uranium.

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Structure and magnetic properties of the LaCo8P5-type compounds PrCo8P5 and EuCo8P5

Cited by 24 publications

References 11 publications

Magnetism of Rare‐Earth Cobalt Phosphides GdCo₃P₂ and GdCo₅P₃

Magnetism of Rare‐Earth Cobalt Phosphides GdCo₃P₂ and GdCo₅P₃

Crystal structure of the rare earth cobalt phosphides Ln₆Co₃₀P₁₉ (Ln = Er-Lu)

Erziehung zur Gerechtigkeit – Pro erudicione ad iusticiam. Zu Entstehung und Tradierung des Bildes der hand- und augenlosen Iustitia im Codex Casanatensis 1404 in Mittelalter und Früher Neuzeit

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Structure and magnetic properties of the LaCo8P5-type compounds PrCo8P5 and EuCo8P5

Cited by 24 publications

References 11 publications

Magnetism of Rare‐Earth Cobalt Phosphides GdCo3P2 and GdCo5P3

Magnetism of Rare‐Earth Cobalt Phosphides GdCo3P2 and GdCo5P3

Crystal structure of the rare earth cobalt phosphides Ln6Co30P19 (Ln = Er-Lu)

Erziehung zur Gerechtigkeit – Pro erudicione ad iusticiam. Zu Entstehung und Tradierung des Bildes der hand- und augenlosen Iustitia im Codex Casanatensis 1404 in Mittelalter und Früher Neuzeit

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Magnetism of Rare‐Earth Cobalt Phosphides GdCo₃P₂ and GdCo₅P₃

Magnetism of Rare‐Earth Cobalt Phosphides GdCo₃P₂ and GdCo₅P₃

Crystal structure of the rare earth cobalt phosphides Ln₆Co₃₀P₁₉ (Ln = Er-Lu)