Kaul, S. N. (1980) Existence of both spin-glass and mictomagnetic behaviour in the amorphous Fe10Ni70P14B6 alloy Solid State Communications, 36 (3). pp. 279-285. ISSN 0038-1098
Full text not available from this repository.
Official URL: http://linkinghub.elsevier.com/retrieve/pii/003810...
Related URL: http://dx.doi.org/10.1016/0038-1098(80)90277-X
Abstract
Results of the accurate magnetization measurements performed on the amorphous Fe10Ni70P14B6 alloy in the temperature range 20-77 K in fields upto 1 kOe are reported. The complex magnetic behaviour exhibited by this alloy has been analyzed to show that a ferromagnetic ordering, occuring on a localized microscopic scale at a temperature T0 very close to that given by the earlier Hall effect measurements, is accompanied by a superparamagnetic behaviour which below T0 causes at first a spin-glass freezing of the magnetic spins when they interact with one another on a long range scale and then a mictomagnetic freezing of the giant superparamagnetic clusters at a lower temperature as a result of exchange interaction between their moments and the frozen spin-glass matrix. In addition, the present results, besides providing a clear physical insight into the widely different ordering temperatures obtained for this alloy from previous Mossbauer and resistivity measurements, on one hand and from our magnetization measurements on the other, strongly suggest a magnetic origin for the observed resistivity-minimum phenomenon. In conclusion, the present alloy represents a composition in the amorphous (FexNi1-x)80P14B6 system well below the percolation limit.
Item Type: | Article |
---|---|
Source: | Copyright of this article belongs to Elsevier Science. |
ID Code: | 29789 |
Deposited On: | 23 Dec 2010 04:45 |
Last Modified: | 07 Jun 2011 04:53 |
Repository Staff Only: item control page