Slow spin relaxation induced by magnetic field in [NdCo(bpdo)(H2O)(4)(CN)(6)] center dot 3H(2)O

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F13%3A10139969" target="_blank" >RIV/00216208:11320/13:10139969 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1088/0953-8984/25/18/186003" target="_blank" >http://dx.doi.org/10.1088/0953-8984/25/18/186003</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/0953-8984/25/18/186003" target="_blank" >10.1088/0953-8984/25/18/186003</a>

Result language
angličtina
Original language name
Slow spin relaxation induced by magnetic field in [NdCo(bpdo)(H2O)(4)(CN)(6)] center dot 3H(2)O
Original language description
We report on a comprehensive investigation of the magnetic properties of [NdCo(bpdo)(H2O)(4)(CN)(6)] center dot 3H(2)O (bpdo = 4, 4'-bipyridine-N,N'-dioxide) by use of electron paramagnetic resonance, magnetization, specific heat and susceptibility measurements. The studied material was identified as a magnet with an effective spin S = 1/2 and a weak exchange interaction J/k(B) = 25 mK. The ac susceptibility studies conducted at audio frequencies and at temperatures from 1.8 to 9 K revealed that the application of a static magnetic field induces a slow spin relaxation. It is suggested that the relaxation in the magnetic field appears due to an Orbach-like process between the two lowest doublet energy states of the magnetic Nd3+ ion. The appearance of the slow relaxation in a magnetic field cannot be associated with a resonant phonon trapping. The obtained results suggest that the relaxation is influenced by nuclear spin driven quantum tunnelling which is suppressed by external magnetic
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Project
<a href="/en/project/LM2011025" target="_blank" >LM2011025: MLTL - Magnetism and Low Temperature Laboratories - operation and development of national research infrastructure</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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