This article is cited in 2 papers

Thermal properties

Thermal physical properties of the La$_{0.825}$Sr$_{0.175}$MnO$_{3}$ single crystals

A. B. Batdalov^a, A.G. Gamzatov^a, A. M. Aliev^a, L. N. Khanov^a, A. A. Mukhuchev^a, Kh. È. Kamaludinova<sup>b

a</sup> Daghestan Institute of Physics after Amirkhanov, Makhachkala, Dagestasn, Russia
^b Khasavyurt Branch, Dagestan State University, Khasavyurt

Abstract: The heat capacity $(C_{P})$, the thermal diffusion $(\eta)$, the thermal conductivity $(\kappa)$, and the electrical resistance of the La$_{0.825}$Sr$_{0.175}$MnO$_{3}$ single crystal have been measured in the temperature range 80–350 K in magnetic fields to 40 kOe. Dependences $C_{P}(T)$, $\kappa(T)$, and $\eta(T)$ have anomalies near $T_C$, which are suppressed in magnetic field. The minima in dependences $\kappa(T)$ and $\eta(T)$ near $T_C$ are explained by the phonon scattering on fluctuations of the magnetic order parameter. Dependences $\kappa$(T) and $\eta(T)$ have anomalies near $T_S$ = 200 K related to the structural transition from the rhombohedral $(R)$ to the orthorhombic $(O^*)$ phase.

Received: 06.02.2017

DOI: 10.21883/FTT.2017.09.44861.029

 English version: Physics of the Solid State, 2017, 59:9, 1879–1882

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