The effect of dilute Gd magnetic impurities on the magnetization of the heavy fermion system Ce I ~GdxAl 3 with 0 ~< x ~< 0.005 for temperatures in the range 2.5 K ~< T ~< 300 K and for magnetic fields H ~< 20 kOe is reported. The Gd impurity contribution obeys a Curie law with an effective moment c
Transport and magnetic properties of the heavy-fermion compounds UCu3+xGa2−x(0.1 ≤ x ≤ 0.8)
✍ Scribed by Y. Maeda; T. Takabatake; H. Fujii; I. Oguro; K. Sugiyama; K. Oda; M. Date
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 199 KB
- Volume
- 199-200
- Category
- Article
- ISSN
- 0921-4526
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✦ Synopsis
We report on the measurements of electrical resistivity, magnetic susceptibility, high-field magnetization and magnetoresistance on UCu3 + xGaz-x (0.1 _< x _< 0.8). Both the N6el temperature and the metamagnetic-transition field have maxima at x = 0.3. For x _> 0.6, nonmagnetic heavy-fermion behavior appears, whereas the high-temperature properties are hardly changed.
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Increasing iron concentration in perovskite-type solid solutions Sr 0.97 Ti 1؊x Fe x O 3؊ (x ؍ 0.2+0.8) was found to decrease the unit cell volume and to increase the partial ionic and electronic conductivities as well as the thermal expansion. The oxygen permeation through Sr 0.97 (Ti,Fe)O 3؊ mem