Open AccessSynthesis and magnetic properties of solid solutions of a diluted magnetic semiconductor (Zn1-xFex)3As2
Author(s) -
В. С. Захвалинский,
Т. Б. Никуличева,
E. A. Pilyuk,
A. A. Trubaev,
I. M. Usatyy
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1014/1/012044
Subject(s) - magnetometer , magnetic semiconductor , condensed matter physics , magnetization , magnetic field , thermoremanent magnetization , magnetic moment , materials science , semiconductor , spin glass , analytical chemistry (journal) , nuclear magnetic resonance , chemistry , ferromagnetism , remanence , physics , optoelectronics , chromatography , quantum mechanics
The magnetic properties of the new semimagnetic semiconductor (Zn 1-x Fe x ) 3 As 2 with x < 0.04 have been investigated over a wide temperature range. Single crystals of ZFA were grown using the modified Bridgeman technique. The results of X-ray analyses and the magnetometry data show that the border of solid solutions in this system lay near x = 0.015. Further increasing of x leads to the growing of the second phase, which was identified as Fe 2 As. A notable feature of our magnetometry results is the spin-glass-type freezing of magnetic moments in the temperature range of 10 - 50 K. The value of the freezing temperature decreases when the magnetic field increases and in 2 kOe magnetic field the effect is no longer observable. It is likely that the observed freezing phenomena are due to the cluster nature of magnetic properties of ZFA. The thermoremanent magnetization measurements give evidence for two types of clusters in the magnetic system of ZFA.