This title appears in the Scientific Report :
2019
Please use the identifier:
http://dx.doi.org/10.1088/1361-648X/aaeead in citations.
Please use the identifier: http://hdl.handle.net/2128/22982 in citations.
Hyperfine interaction in cobalt by high-resolution neutron spectroscopy
Hyperfine interaction in cobalt by high-resolution neutron spectroscopy
We have investigated the ferromagnetic phase transition of elemental Co by high-resolution neutron backscattering spectroscopy. We monitored the splitting of the nuclear levels by the hyperfine field at the Co nucleus. The energy of this hyperfine splitting is identified as the order parameter of th...
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Personal Name(s): | Chatterji, Tapan (Corresponding author) |
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Zamponi, Michaela / Wuttke, Joachim | |
Contributing Institute: |
JCNS-FRM-II; JCNS-FRM-II Neutronenstreuung; JCNS-1 |
Published in: | Journal of physics / Condensed matter Condensed matter, 31 (2019) 2, S. 025801 - |
Imprint: |
Bristol
IOP Publ.80390
2019
|
PubMed ID: |
30516135 |
DOI: |
10.1088/1361-648X/aaeead |
Document Type: |
Journal Article |
Research Program: |
Jülich Centre for Neutron Research (JCNS) FRM II / MLZ |
Subject (ZB): | |
Link: |
Restricted Restricted Published on 2018-12-05. Available in OpenAccess from 2019-12-05. |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/22982 in citations.
We have investigated the ferromagnetic phase transition of elemental Co by high-resolution neutron backscattering spectroscopy. We monitored the splitting of the nuclear levels by the hyperfine field at the Co nucleus. The energy of this hyperfine splitting is identified as the order parameter of the ferromagnetic phase transition. By measuring the temperature dependence of the energy we determined the critical exponent and the ferromagnetic Curie temperature of K. The present result of the critical exponent agrees better with the predicted value (0.367) of the three-dimensional Heisenberg model than that determined previously by nuclear magnetic resonance. |