Abstract
The paramagnetic fluctuations are investigated in La(Fe0.88Si0.12)13. The disordered local moment (DLM) is represented by the first principle calculations. With a reduction of the volume, the DLM amplitude decreases gradually. In the temperature dependence of electrical resistivity ρ under hydrostatic pressure, an upturn in the variation of ρ in the paramagnetic state was observed with decreasing temperature, which is originated from the Curie-Weiss-type DLM fluctuations. In the vicinity of the critical pressure for disappearance of the DLM, the variation of ρ as a function of log(T) was observed.
Highlights
The paramagnetic fluctuations are investigated in La(Fe0.88Si0.12)[13]
In the temperature dependence of electrical resistivity ρ under hydrostatic pressure, an upturn in the variation of ρ in the paramagnetic state was observed with decreasing temperature, which is originated from the Curie-Weiss-type disordered local moment (DLM) fluctuations
Because the magnetic state can be modulated through magnetovolume effect without modifying the chemical or compositional characteristics of specimens,[14] the application of the hydrostatic pressure was coupled with the electrical resistivity measurements
Summary
The paramagnetic fluctuations are investigated in La(Fe0.88Si0.12)[13]. The disordered local moment (DLM) is represented by the first principle calculations. Asaya Fujita Chubu Center, National Institute of Advanced Industrial Science and Technology, Nagoya Aichi 463-8560, Japan (Received 26 February 2016; accepted 23 May 2016; published online 8 June 2016)
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