Short-range order in metals above the Curie temperature
We use the dynamic spin-fluctuation theory to study spin-density correlations in ferromagnetic metals above the Curie temperature. We calculate the spatial spin-correlation function, dynamic susceptibility and local magnetic moment. The dynamic susceptibility is related to the energy-integrated scat...
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| Format: | Article |
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AIP Publishing LLC
2018-10-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/1.5041420 |
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doaj-dab9db7d78ce418293eee15adf19b99f2020-11-24T22:03:17ZengAIP Publishing LLCAIP Advances2158-32262018-10-01810101402101402-610.1063/1.5041420003893ADVShort-range order in metals above the Curie temperatureN. B. Melnikov0B. I. Reser1G. V. Paradezhenko2Lomonosov Moscow State University, Moscow 119991, RussiaMikheev Institute of Metal Physics, UrB RAS, Ekaterinburg 620108, RussiaLomonosov Moscow State University, Moscow 119991, RussiaWe use the dynamic spin-fluctuation theory to study spin-density correlations in ferromagnetic metals above the Curie temperature. We calculate the spatial spin-correlation function, dynamic susceptibility and local magnetic moment. The dynamic susceptibility is related to the energy-integrated scattering cross-section (effective moment). Calculated effective and local moments of Fe and Ni are found in good agreement with results of polarized neutron scattering experiment over a wide temperature range. We find that short-range order remains up to distances of about 6 Å in Fe and 8 Å in Ni at TTC = 1.1 and slowly decreases with temperature.http://dx.doi.org/10.1063/1.5041420 |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
N. B. Melnikov B. I. Reser G. V. Paradezhenko |
| spellingShingle |
N. B. Melnikov B. I. Reser G. V. Paradezhenko Short-range order in metals above the Curie temperature AIP Advances |
| author_facet |
N. B. Melnikov B. I. Reser G. V. Paradezhenko |
| author_sort |
N. B. Melnikov |
| title |
Short-range order in metals above the Curie temperature |
| title_short |
Short-range order in metals above the Curie temperature |
| title_full |
Short-range order in metals above the Curie temperature |
| title_fullStr |
Short-range order in metals above the Curie temperature |
| title_full_unstemmed |
Short-range order in metals above the Curie temperature |
| title_sort |
short-range order in metals above the curie temperature |
| publisher |
AIP Publishing LLC |
| series |
AIP Advances |
| issn |
2158-3226 |
| publishDate |
2018-10-01 |
| description |
We use the dynamic spin-fluctuation theory to study spin-density correlations in ferromagnetic metals above the Curie temperature. We calculate the spatial spin-correlation function, dynamic susceptibility and local magnetic moment. The dynamic susceptibility is related to the energy-integrated scattering cross-section (effective moment). Calculated effective and local moments of Fe and Ni are found in good agreement with results of polarized neutron scattering experiment over a wide temperature range. We find that short-range order remains up to distances of about 6 Å in Fe and 8 Å in Ni at TTC = 1.1 and slowly decreases with temperature. |
| url |
http://dx.doi.org/10.1063/1.5041420 |
| work_keys_str_mv |
AT nbmelnikov shortrangeorderinmetalsabovethecurietemperature AT bireser shortrangeorderinmetalsabovethecurietemperature AT gvparadezhenko shortrangeorderinmetalsabovethecurietemperature |
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1725832366984790016 |