Open AccessФизические свойства фрустрированного квазиодномерного магнетика NaCuFe-=SUB=-2-=/SUB=-(VO-=SUB=-4-=/SUB=-)-=SUB=-3-=/SUB=- и влияние химического давления при замещении натрия литием
Author(s) -
T. V. Drokina,
G. A. Petrakovskiı̌,
О.А. Баюков,
Maxim S. Мolokeev,
А. М. Воротынов,
С.И. Попков,
Д. А. Великанов
Publication year - 2020
Publication title -
fizika tverdogo tela
Language(s) - English
Resource type - Journals
eISSN - 1726-7498
pISSN - 0367-3294
DOI - 10.21883/ftt.2020.02.48876.593
Subject(s) - antiferromagnetism , paramagnetism , magnetism , condensed matter physics , ion , crystallite , electron paramagnetic resonance , materials science , lattice (music) , atmospheric temperature range , lithium (medication) , chemistry , nuclear magnetic resonance , physics , thermodynamics , metallurgy , medicine , organic chemistry , endocrinology , acoustics
The results of the study of structural, thermal, static magnetic and resonance properties of the low-dimensional compound NaCuFe2(VO4)3 prepared by the standard solid-phase reaction method are presented. In the temperature range 110–300 K and in the X-band, an electron paramagnetic resonance was observed, characterized by a g-factor equal to 2.008. The magnetic properties of the sample with a high level of frustrations in the paramagnetic, antiferromagnetic, and disordered states are investigated. A shift of the Néel temperature to high temperatures under the influence of an external magnetic field was detected. The reasons for the appearance of disordered magnetism in NaCuFe2 (VO4) 3 are discussed. The features of the effect of sodium substitution by lithium on the physical properties of the ACuFe2 (VO4) 3 (A = Na, Li) system are revealed. It is shown that under the influence of chemical pressure there is a transformation of lattice parameters, distances between magnetic ions, crystallite size, which leads to a change in physical properties.