Low-temperature heat capacity of the metallic glasses Fe<sub>80</sub>P<sub>14</sub>B<sub>6</sub>, Fe<sub>40</sub>Ni<sub>40</sub>P<sub>14</sub>B<sub>6</sub> and Ni<sub>80</sub>P<sub>14</sub>B<sub>6</sub>
D G Onn; W D Johnson; P F Gleeson; T A Donnelly; T Egami; H H Liebermann; D G Onn; Dept. of Phys., Univ. of Delaware, Newark, DE, USA; W D Johnson; Dept. of Phys., Univ. of Delaware, Newark, DE, USA; P F Gleeson; Dept. of Phys., Univ. of Delaware, Newark, DE, USA; T A Donnelly; Dept. of Phys., Univ. of Delaware, Newark, DE, USA; T Egami; Dept. of Phys., Univ. of Delaware, Newark, DE, USA; H H Liebermann; Dept. of Phys., Univ. of Delaware, Newark, DE, USA
Журнал:
Journal of Physics C: Solid State Physics
Дата:
1977-11-28
Аннотация:
Heat capacity results on a-Fe<sub>x</sub>Ni<sub>80-x</sub>P<sub>14</sub>B<sub>6</sub> for x=0, 40, and 80 are reported between 0.4K and 10K and values of theta <sub>D</sub> and gamma determined. For the alloys containing Fe, which are ferromagnetic a large spin-wave contribution is seen and values of D obtained. In a-Ni<sub>80</sub>P<sub>14</sub>B<sub>6</sub>, which shows no bulk magnetism, the formation of magnetic clusters is suggested by the presence of a large, almost constant contribution to C<sub>p</sub>.
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