Loading...
Please wait, while we are loading the content...
Similar Documents
Nuclear orientation of Mn and Co in spin glass and re-entrant AuFe
| Content Provider | Scilit |
|---|---|
| Author | Trhlik, M. Moors, P. De Camps, J. Erzinkyan, A. L. Gurevich, G. M. Parfenova, V. P. Schuurmans, P. Severijns, N. Vanderpoorten, W. Vanneste, L. |
| Copyright Year | 1995 |
| Description | Journal: Journal of Physics: Condensed Matter Low-temperature nuclear orientation has been used to study the magnetic behaviour of$ ^{54}$Mn and$ ^{57}$Co impurities in the AuFe alloy, below (14 at.% Fe-spin-glass state) and above (18 at.% Fe-re-entrant state) the percolation threshold. The anisotropy of the gamma -rays was monitored in the direction of the external magnetic field, as a function of the external magnetic field $B_{ext}$ up to 8.5 T and of the temperature in the range 4-40 mK. In $Au_{86}Fe_{14}$ we have found total misalignment of the Mn and Co spins when $B_{ext}$ to 0 and a rather easy alignment of Mn and Co with the application of $B_{ext}$, which is typical for a spin-glass behaviour. On the other hand, both Mn and Co spins in $Au_{82}Fe_{18}$ show an alignment (mean value approximately 32 degrees ), even at $B_{ext}$ to 0, and are turned only slowly by $B_{ext}$ which corresponds to the re-entrant state. The difference in the Mn and Co results can be interpreted as an indication of the existence of local correlations between the Fe spins, supporting the necessity of using the finite-range model for the re-entrant state. |
| Related Links | http://iopscience.iop.org/article/10.1088/0953-8984/7/40/018/pdf |
| Ending Page | 7886 |
| Page Count | 8 |
| Starting Page | 7879 |
| ISSN | 09538984 |
| e-ISSN | 1361648X |
| DOI | 10.1088/0953-8984/7/40/018 |
| Journal | Journal of Physics: Condensed Matter |
| Issue Number | 40 |
| Volume Number | 7 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 1995-10-02 |
| Access Restriction | Open |
| Subject Keyword | Journal: Journal of Physics: Condensed Matter Condensed Matter Physics Re Entrant Fe Spin Mn and Co Spins |
| Content Type | Text |
| Resource Type | Article |
| Subject | Condensed Matter Physics Materials Science |
