Structural, magnetic and electronic transport studies of RAgSn2 compounds (R = Y, Tb, Dy, Ho and Er) with Cu3Au-type

Bulletin of materials science

A Szytula³  D Fruchart¹  L Romaka²  A Zarzycki³  B Kuzhel²  V V Romaka⁴  I Lototska²  E K Hlil¹ 

[1] Institut Néel, CNRS et Université Joseph Fourier, BP 166, F-38042 Grenoble cedex 9, France$$Institut Néel, CNRS et Université Joseph Fourier, BP 166, F-38042 Grenoble cedex 9, FranceInstitut Néel, CNRS et Université Joseph Fourier, BP 166, F-38042 Grenoble cedex 9, France$$;Department of Inorganic Chemistry, Ivan Franko Lviv National University, Kyryl and Mephodiy Street 6, 79005, Lviv, Ukraine$$Department of Inorganic Chemistry, Ivan Franko Lviv National University, Kyryl and Mephodiy Street 6, 79005, Lviv, UkraineDepartment of Inorganic Chemistry, Ivan Franko Lviv National University, Kyryl and Mephodiy Street 6, 79005, Lviv, Ukraine$$;Institute of Physics, Jagiellonian University, Reymonta 4, 30059 Krakow, Poland$$Institute of Physics, Jagiellonian University, Reymonta 4, 30059 Krakow, PolandInstitute of Physics, Jagiellonian University, Reymonta 4, 30059 Krakow, Poland$$;Department of Materials Engineering and Applied Physics, Lviv Polytechnic National University, Ustyyanovycha Street 5, 79013, Lviv, Ukraine$$Department of Materials Engineering and Applied Physics, Lviv Polytechnic National University, Ustyyanovycha Street 5, 79013, Lviv, UkraineDepartment of Materials Engineering and Applied Physics, Lviv Polytechnic National University, Ustyyanovycha Street 5, 79013, Lviv, Ukraine$$

关键词: Intermetallics;    crystal structure;    magnetic properties;    electric properties;    electronic structure calculations.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

RAgSn₂ compounds, where R = Y, Tb, Dy, Ho and Er, were synthesized by arc-melting and subsequent annealing at 870 K. The formation of cubic phases with Cu₃Au-type structure (space group was studied. Magnetic property measurements showed that in paramagnetic state, the compounds with magnetic rareearth atoms are Curieâ€�?�Weiss paramagnets and order antiferromagnetically at low temperatures. YAgSn₂ is a Pauli paramagnet in 100â€�??300 K temperature range. The electrical properties of RAgSn₂ compounds were investigated by means of electrical resistivity and Seebeck coefficient measurements in 4.2â€�??300 K temperature range. All investigated compounds exhibit metallic type of conductivity. Electronic structure calculations based on full potential linearized augmented plane wave (FLAPW)method is also carried out to probe themagnetic and electronic structures of RAgSn₂ compounds. Comparisons between experimental data and calculations are discussed.

【 授权许可】

Unknown