Effect of nonstoichiometry on the Hall effect, Nernst‒Ettingshausen effect, and electrosound in (MnSe)1‒х(Tm0.76Se)х manganese selenides

IF 3.2 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Journal of Solid State Chemistry Pub Date : 2025-02-21 DOI:10.1016/j.jssc.2025.125284

S.S. Aplesnin , A.M. Kharkov , M.N. Sitnikov , N.A. Cheremnykh , O.S. Nikitinskiy , O.B. Romanova , A.V. Shabanov

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Abstract

―In nonstoichiometric (MnSe)_1‒х(Tm_0.76Se)_х manganese selenide, the temperature and concentration regions with the same sign of carriers determined from the Hall constant and thermoelectric power have been found. The correlation of the temperature dependences of the thermopower and electrosound has been explained within the polaron model. A change in the sign of the longitudinal and transverse Nernst‒Ettingshausen coefficients upon variation in temperature and concentration has been detected. The agree of the temperature dependences of the Nernst‒Ettingshausen coefficients with a change in the electrosound in a magnetic field has been established. The maxima of the thermopower and Nernst‒Ettingshausen coefficients versus temperature have been explained within the model of coupled electron‒hole pairs with dissociation of the pairs and pinning of coupled polarons.

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来源期刊

Journal of Solid State Chemistry 化学-无机化学与核化学

CiteScore

6.00

自引率

9.10%

发文量

848

审稿时长

25 days

期刊介绍： Covering major developments in the field of solid state chemistry and related areas such as ceramics and amorphous materials, the Journal of Solid State Chemistry features studies of chemical, structural, thermodynamic, electronic, magnetic, and optical properties and processes in solids.