A study of the magnetic properties of a quasi-one-dimensional magnet β-TeVO4 in the frame of the J1–J2 model

Autor:	S. L. Gnatchenko, Peter Lemmens, Volodymyr Pashchenko, A. N. Bludov, Helmuth Berger, Yu. V. Savin, Yu. O. Savina, S. Schäfer
Rok vydání:	2015
Předmět:	Physics Physics and Astronomy (miscellaneous) Condensed matter physics Zigzag Chain (algebraic topology) Ferromagnetism Magnet Frame (networking) General Physics and Astronomy Antiferromagnetism Single crystal Ion
Zdroj:	Low Temperature Physics. 41:659-661
ISSN:	1090-6517 1063-777X
DOI:	10.1063/1.4928922
Popis:	Magnetic properties of single crystal β-TeVO4 with a zigzag chain of magnetic centers (V4+ ions, S = 1/2) are analyzed in the framework of the J1–J2 model. The best agreement with experimental data is obtained for the J1–J2 model with parameters J1/kB = −38.33 K and J2/kB = 29.48 K (gb = 2.07, ga,c = 1.99). In contrast to the previously used model (a uniform antiferromagnetic spin chain system with J1/kB = 21.4 K (gb = 2.28, ga,c = 2.18)), this improved result allows one to consider the object under study as a zigzag chain system with a dominant ferromagnetic exchange between the nearest neighbors and an antiferromagnetic interaction between the next-nearest neighbors.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a38bb50327705173f2596572256ac1fd https://doi.org/10.1063/1.4928922 Zobrazit plný text záznamu