Recent Aspects of Non Stoichiometry Effects on the Superconducting Properties of HoNi2B2Cx (x=0.6 to 1.4). Alleno, E., Berger, P., Leroy, E., & Godart, C. In Müller, K. & Narozhnyi, V., editors, Rare Earth Transition Metal Borocarbides (Nitrides): Superconducting, Magnetic and Normal State Properties, of NATO Science Series, pages 265–274. Springer Netherlands, Dordrecht, 2001. 00000
Paper doi abstract bibtex We report on the effects of carbon non-stoichiometry and of annealing conditions on the superconducting (SUP) properties of HoNi2B2Cx (x from 0.6 to 1.4). Using nuclear- and electron- probe microanalysis, respectively NPMA and EPMA, we show that for samples with x=0.8, 1.0 and 1.2, (from non SUP to SUP via re-entrance) the final carbon-compositions of the matrix when x≤l follow the general tendency of the nominal compositions whereas for x\textgreaterl the final composition is x=l. We will discuss these results in relation with the various observed physical behaviors. The non-stoichiometry is also accommodated by the formation of several secondary phases. Our results indicate also that HoNi2B2C has a domain of existence on the C-poor side and, if it exists, a very narrow one on the C-rich side.
@incollection{alleno_recent_2001,
address = {Dordrecht},
series = {{NATO} {Science} {Series}},
title = {Recent {Aspects} of {Non} {Stoichiometry} {Effects} on the {Superconducting} {Properties} of {HoNi2B2Cx} (x=0.6 to 1.4)},
copyright = {All rights reserved},
isbn = {978-94-010-0763-4},
url = {https://doi.org/10.1007/978-94-010-0763-4_27},
abstract = {We report on the effects of carbon non-stoichiometry and of annealing conditions on the superconducting (SUP) properties of HoNi2B2Cx (x from 0.6 to 1.4). Using nuclear- and electron- probe microanalysis, respectively NPMA and EPMA, we show that for samples with x=0.8, 1.0 and 1.2, (from non SUP to SUP via re-entrance) the final carbon-compositions of the matrix when x≤l follow the general tendency of the nominal compositions whereas for x{\textgreater}l the final composition is x=l. We will discuss these results in relation with the various observed physical behaviors. The non-stoichiometry is also accommodated by the formation of several secondary phases. Our results indicate also that HoNi2B2C has a domain of existence on the C-poor side and, if it exists, a very narrow one on the C-rich side.},
language = {en},
urldate = {2019-10-28},
booktitle = {Rare {Earth} {Transition} {Metal} {Borocarbides} ({Nitrides}): {Superconducting}, {Magnetic} and {Normal} {State} {Properties}},
publisher = {Springer Netherlands},
author = {Alleno, E. and Berger, P. and Leroy, E. and Godart, C.},
editor = {Müller, Karl-Hartmut and Narozhnyi, Vladimir},
year = {2001},
doi = {10.1007/978-94-010-0763-4_27},
note = {00000 },
keywords = {Complex Magnetic Phase Diagram, Incommensurate Magnetic Structure, Rare Earth Transition Metal, Zero Field Cool, Zero Field Cool Curve},
pages = {265--274},
}
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