SUPERCONDUCTIVITY OF PSEUDO-BINARY COMPOUNDS BETWEEN Th7Fe3, Th7Co3 AND Th7Ni3.

M. Hakimi; L. E. Delong; J. G. Huber

SUPERCONDUCTIVITY OF PSEUDO-BINARY COMPOUNDS BETWEEN Th₇Fe₃, Th₇Co₃ AND Th₇Ni₃.

M. Hakimi, L. E. Delong, J. G. Huber

Physics And Astronomy

Research output: Contribution to conference › Paper › peer-review

Abstract

The superconductivity of Th//7//. //1(Fe, Co)//3, Th//7//. //1(Co, Ni)//3 and Th//7//. //1(Fe, Ni)//3 pseudo-binary compounds is reported. An unusual peak-and-valley structure is observed in the compositional variations of the superconducting transition temperatures. The same features in the data for the combined Th//7//. //1(Fe, Co)//3 and Th//7//. //1(Co, Ni)//3 systems are reproduced, although attenuated, in those for the Th//7//. //1(Fe, Ni)//3 system. It is argued that in the Th//7X//3 compounds with D10//2 structure the superconductivity is due to Th 6d-bands.

Original language	English
Pages	426-429
Number of pages	4
State	Published - 1985

Bibliographical note

Funding Information:
ThvFe3, Th7Co 3 and Th7Ni 3 are the only Th-rich compounds known to form with iron group elements. They all have the hexagonal D102 structure and become superconductors with transition temperatures T c of about 2 K \[1\]. The Fe, Co and Ni atoms are isolated from one another in cages of Th atoms, and the three compounds are Pauli paramagnets with essentially temperature-independent susceptibilities \[2\]. When the iron group elements are introduced as impurities into pure Th, a 1.36 K superconductor, Fe, Co and Ni are either negligibly soluble or little affect T c while Mn and Cr depress T c extremely rapidly \[3\]. T_hMn and ThCr are thought to be Kondo systems \[4\]; and Th7Mn 3 and Th7Cr3, of course, do not form. In ThvFe3, ThvCo 3 and ThTNi 3 the iron group 3d-shells are certainly filled; and their role in the superconductivity would seem to be minor. In another set * Research supported by the National Science Foundation under grants DMR 80-10530 and DMR 82-03690. * Present address: Laboratory of Nuclear Studies, Cornell University, Ithaca, NY 14853, USA.

Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.

ASJC Scopus subject areas

Engineering (all)

Cite this

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title = "SUPERCONDUCTIVITY OF PSEUDO-BINARY COMPOUNDS BETWEEN Th7Fe3, Th7Co3 AND Th7Ni3.",

abstract = "The superconductivity of Th//7//. //1(Fe, Co)//3, Th//7//. //1(Co, Ni)//3 and Th//7//. //1(Fe, Ni)//3 pseudo-binary compounds is reported. An unusual peak-and-valley structure is observed in the compositional variations of the superconducting transition temperatures. The same features in the data for the combined Th//7//. //1(Fe, Co)//3 and Th//7//. //1(Co, Ni)//3 systems are reproduced, although attenuated, in those for the Th//7//. //1(Fe, Ni)//3 system. It is argued that in the Th//7X//3 compounds with D10//2 structure the superconductivity is due to Th 6d-bands.",

author = "M. Hakimi and Delong, {L. E.} and Huber, {J. G.}",

note = "Funding Information: ThvFe3, Th7Co 3 and Th7Ni 3 are the only Th-rich compounds known to form with iron group elements. They all have the hexagonal D102 structure and become superconductors with transition temperatures T c of about 2 K \[1\]. The Fe, Co and Ni atoms are isolated from one another in cages of Th atoms, and the three compounds are Pauli paramagnets with essentially temperature-independent susceptibilities \[2\]. When the iron group elements are introduced as impurities into pure Th, a 1.36 K superconductor, Fe, Co and Ni are either negligibly soluble or little affect T c while Mn and Cr depress T c extremely rapidly \[3\]. T_hMn and ThCr are thought to be Kondo systems \[4\]; and Th7Mn 3 and Th7Cr3, of course, do not form. In ThvFe3, ThvCo 3 and ThTNi 3 the iron group 3d-shells are certainly filled; and their role in the superconductivity would seem to be minor. In another set * Research supported by the National Science Foundation under grants DMR 80-10530 and DMR 82-03690. * Present address: Laboratory of Nuclear Studies, Cornell University, Ithaca, NY 14853, USA. Copyright: Copyright 2018 Elsevier B.V., All rights reserved.",

year = "1985",

language = "English",

pages = "426--429",

}

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T1 - SUPERCONDUCTIVITY OF PSEUDO-BINARY COMPOUNDS BETWEEN Th7Fe3, Th7Co3 AND Th7Ni3.

AU - Hakimi, M.

AU - Delong, L. E.

AU - Huber, J. G.

N1 - Funding Information: ThvFe3, Th7Co 3 and Th7Ni 3 are the only Th-rich compounds known to form with iron group elements. They all have the hexagonal D102 structure and become superconductors with transition temperatures T c of about 2 K \[1\]. The Fe, Co and Ni atoms are isolated from one another in cages of Th atoms, and the three compounds are Pauli paramagnets with essentially temperature-independent susceptibilities \[2\]. When the iron group elements are introduced as impurities into pure Th, a 1.36 K superconductor, Fe, Co and Ni are either negligibly soluble or little affect T c while Mn and Cr depress T c extremely rapidly \[3\]. T_hMn and ThCr are thought to be Kondo systems \[4\]; and Th7Mn 3 and Th7Cr3, of course, do not form. In ThvFe3, ThvCo 3 and ThTNi 3 the iron group 3d-shells are certainly filled; and their role in the superconductivity would seem to be minor. In another set * Research supported by the National Science Foundation under grants DMR 80-10530 and DMR 82-03690. * Present address: Laboratory of Nuclear Studies, Cornell University, Ithaca, NY 14853, USA. Copyright: Copyright 2018 Elsevier B.V., All rights reserved.

PY - 1985

Y1 - 1985

N2 - The superconductivity of Th//7//. //1(Fe, Co)//3, Th//7//. //1(Co, Ni)//3 and Th//7//. //1(Fe, Ni)//3 pseudo-binary compounds is reported. An unusual peak-and-valley structure is observed in the compositional variations of the superconducting transition temperatures. The same features in the data for the combined Th//7//. //1(Fe, Co)//3 and Th//7//. //1(Co, Ni)//3 systems are reproduced, although attenuated, in those for the Th//7//. //1(Fe, Ni)//3 system. It is argued that in the Th//7X//3 compounds with D10//2 structure the superconductivity is due to Th 6d-bands.

AB - The superconductivity of Th//7//. //1(Fe, Co)//3, Th//7//. //1(Co, Ni)//3 and Th//7//. //1(Fe, Ni)//3 pseudo-binary compounds is reported. An unusual peak-and-valley structure is observed in the compositional variations of the superconducting transition temperatures. The same features in the data for the combined Th//7//. //1(Fe, Co)//3 and Th//7//. //1(Co, Ni)//3 systems are reproduced, although attenuated, in those for the Th//7//. //1(Fe, Ni)//3 system. It is argued that in the Th//7X//3 compounds with D10//2 structure the superconductivity is due to Th 6d-bands.

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ER -

SUPERCONDUCTIVITY OF PSEUDO-BINARY COMPOUNDS BETWEEN Th₇Fe₃, Th₇Co₃ AND Th₇Ni₃.

Abstract

Bibliographical note

ASJC Scopus subject areas

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