Correct determination of electron concentration in n–GaSb from Hall data
Yu. N. Parkhomenko,
A. G. Belov,
E. V. Molodtsova,
R. Yu. Kozlov,
S. S. Kormilitsina,
E. O. Zhuravlev https://doi.org/10.17073/1609-3577-2023-1-36-45
EDN: BPAYDK
Abstract
The calculation of conductivity electron concentrations in n-GaSb at T = 295 K and T = 77 K have been made. The concentration of “heavy” electrons in the L-valley of conduction band at Т = 295 K has been shown to exceed “light” electron one in the Γ-valley. On the contrary, at T = 77 K the conductivity electrons are gathered in the Γ-valley.
The results of Hall measurements made on tellurium-doped samples of n-GaSb obtained by the Czochralski method have been represented. It has been shown that upon analysing Hall data at Т = 295 K, it is necessary to take into account the presence of two types of electrons (“light” and “heavy”); their concentrations are not possible to be determined. Seeming increase in electron concentration upon transition from T = 295 K to 77 K really does not take place. The electron concentration at T = 77 K may be determined correctly from the Hall data.
About the Authors
Yu. N. Parkhomenko
Federal State Research and Development Institute of Rare Metal Industry (Giredmet JSC);
National University of Science and Technology MISIS
Russian Federation
Russian Federation
2-1 Elektrodnaya Str., Moscow 111524;
4-1 Leninsky Ave., Moscow 119049
Yuri N. Parkhomenko — Dr. Sci. (Phys.-Math.), Professor, Scientific Consultant
A. G. Belov
Federal State Research and Development Institute of Rare Metal Industry (Giredmet JSC)
Russian Federation
Russian Federation
2-1 Elektrodnaya Str., Moscow 111524
Aleksandr G. Belov — Cand. Sci. (Phys.–Math.), Leading Re-searcher
E. V. Molodtsova
Federal State Research and Development Institute of Rare Metal Industry (Giredmet JSC)
Russian Federation
Russian Federation
2-1 Elektrodnaya Str., Moscow 111524
Elena V. Molodtsova — Cand. Sci. (Eng.), Leading Researcher
R. Yu. Kozlov
Federal State Research and Development Institute of Rare Metal Industry (Giredmet JSC);
National University of Science and Technology MISIS
Russian Federation
Russian Federation
2-1 Elektrodnaya Str., Moscow 111524;
4-1 Leninsky Ave., Moscow 119049
Roman Yu. Kozlov — Head of the Laboratory
S. S. Kormilitsina
Federal State Research and Development Institute of Rare Metal Industry (Giredmet JSC);
National University of Science and Technology MISIS
Russian Federation
Russian Federation
2-1 Elektrodnaya Str., Moscow 111524;
4-1 Leninsky Ave., Moscow 119049
Svetlana S. Kormilitsina — Junior Researcher
E. O. Zhuravlev
Federal State Research and Development Institute of Rare Metal Industry (Giredmet JSC);
National University of Science and Technology MISIS
Russian Federation
Russian Federation
2-1 Elektrodnaya Str., Moscow 111524;
4-1 Leninsky Ave., Moscow 119049
Evgeny O. Zhuravlev — Trainee Student
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Review
For citations:
Parkhomenko Yu.N., Belov A.G., Molodtsova E.V., Kozlov R.Yu., Kormilitsina S.S., Zhuravlev E.O. Correct determination of electron concentration in n–GaSb from Hall data. Izvestiya Vysshikh Uchebnykh Zavedenii. Materialy Elektronnoi Tekhniki = Materials of Electronics Engineering. 2023;26(1):36-45. (In Russ.) https://doi.org/10.17073/1609-3577-2023-1-36-45. EDN: BPAYDK
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