Zobrazeno 1 - 10
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pro vyhledávání: '"Hardy, V"'
Autor:
Guillou, F., Hardy, V.
Publikováno v:
In Journal of Alloys and Compounds 15 March 2024 977
Publikováno v:
J. Phys.: Condens. Matter 31 (2019) 31LT01
By means of a specific heat ($C$) and electrical resistivity ($\varrho$) study, we give evidence of a pronounced Fermi liquid (FL) behavior with sizable mass renormalization, $m^{\ast}/m = 30$, up to unusually high temperatures $\sim$70 K in the laye
Externí odkaz:
http://arxiv.org/abs/1811.05431
Publikováno v:
In Acta Materialia 1 June 2022 231
Publikováno v:
In Fundamental Research September 2022
Publikováno v:
In Journal of Magnetism and Magnetic Materials 1 January 2022 541
Publikováno v:
In Journal of Magnetism and Magnetic Materials 15 August 2020 508
Publikováno v:
In Journal of Magnetism and Magnetic Materials 15 June 2020 504
(Pr0.7Sm0.3)0.7Ca0.3CoO3 belongs to a class of cobalt oxides undergoing a first-order transition (T* close to 90 K) associated to a coupled change in the valence and spin-state degrees of freedom. The Curie-Weiss regime present around room temperatur
Externí odkaz:
http://arxiv.org/abs/1307.3966
A wide family of cobalt oxides of formulation (Pr,Ln,Ca)CoO3 (Ln being a lanthanide) exhibits a coupled valence and spin-state transition (VSST) at a temperature T*, which involves two concomitant modifications: (i) a change in the spin state of Co3+
Externí odkaz:
http://arxiv.org/abs/1305.2829
Autor:
Guillou, F., Zhang, Q., Hu, Z., Kuo, C. Y., Chin, Y. Y., Lin, H. J., Chen, C. T., Tanaka, A., Tjeng, L. H., Hardy, V.
The coupled valence and spin state transition (VSST) taking place in (Pr0.7Sm0.3)0.7Ca0.3CoO3 was investigated by soft x-ray absorption spectroscopy (XAS) experiments carried out at the Pr-M4,5, Co-L2,3, and O-1s edges. This VSST is found to be compo
Externí odkaz:
http://arxiv.org/abs/1302.2416