Hydrogen absorption in U3Si2 and its impact on electronic properties

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F17%3A10363142" target="_blank" >RIV/00216208:11320/17:10363142 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.jnucmat.2017.02.036" target="_blank" >http://dx.doi.org/10.1016/j.jnucmat.2017.02.036</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jnucmat.2017.02.036" target="_blank" >10.1016/j.jnucmat.2017.02.036</a>

Result language
angličtina
Original language name
Hydrogen absorption in U3Si2 and its impact on electronic properties
Original language description
U3Si2 reversibly absorbs hydrogen at very low H2 pressures (kPa range), yielding U3Si2H1.8. One characteristic desorption temperature implies that there is only one type of H sites. U3Si2 is a weak Pauli paramagnet (chi < 2.10(-8) m(3)/mol U) with the shortest inter-uranium distances between the U atoms in different sheets (d(U-U) = 332 pm). The volume-expanded (10%) hydride is a spin fiuctuator with temperature dependent magnetic susceptibility and a weak ferromagnetic component gradually arising below T = 100 K. The location of U3Si2H1.8 at the verge of magnetic ordering is evidenced by the low temperature specific heat with an upturn in CIT and a dramatic enhancement of the Sommerfeld coefficient of electronic specific heat gamma, which reaches 500 mJ/mol f.u. K-2.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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