Contribution of Iron Clusters to the Magnetic Properties of Pb{sub 1– y}Fe{sub y}Te Alloys

Journal Article · Fri Jun 15 04:00:00 EDT 2018 · Semiconductors

DOI:https://doi.org/10.1134/S1063782618060210· OSTI ID:22749935

Solovev, A. A. ^[1]; Slynko, V. E. ^[2]

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1. Moscow State University (Russian Federation)
2. National Academy of Sciences of Ukraine, Institute of Materials Science Problems (Ukraine)

The field dependences of the magnetization (temperatures T = 2.0–70 K, magnetic fields B ≤ 7.5 T) of the samples from a single-crystalline Pb{sub 1– y}Fe{sub y}Te ingot (y = 0.02) grown by the Bridgman method are studied. It is established that the sample magnetization contains several major contributions such as the paramagnetism of iron ions, diamagnetism of the crystal lattice, and the contributions of charge carriers and clusters of iron atoms. The field dependences of the paramagnetic contribution of iron ions and the contribution of clusters of iron atoms are approximated by theoretical dependences based on the Brillouin and Langevin functions, respectively. The average concentrations and magnetic moment of clusters as well as the total magnetic momentum of clusters in the volume unit in the samples upon increasing the impurity concentration along the ingot are determined.

• OSTI ID: 22749935
• Journal Information: Semiconductors, Journal Name: Semiconductors Journal Issue: 6 Vol. 52; ISSN SMICES; ISSN 1063-7826
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALLOYS
BRIDGMAN METHOD
CHARGE CARRIERS
CRYSTAL LATTICES
IRON IONS
MAGNETIC FIELDS
MAGNETIC MOMENTS
MAGNETIC PROPERTIES
MAGNETIZATION