Publikace detail

Low Temperature Ferromagnetism in the New Diluted Magnetic Semiconductor p-Bi2-xFexTe3

Rok: 2003

Druh publikace: článek v odborném periodiku

Název zdroje: Physica B-Condensed Matter

Název nakladatele: Elsevier Science BV

Místo vydání: Amsterdam

Strana od-do: 1251-1252

Tituly:

Jazyk	Název	Abstrakt	Klíčová slova
cze	Low Temperature Ferromagnetism in the New Diluted Magnetic Semiconductor p-Bi2-xFexTe3	Single crystals of the new diluted magnetic semiconductor of p-Bi2-xFexTe3 (0<x<0.08) and n-Bi2-xFexSe3 (0<x<0.06) have been synthesized. The ferromagnetic phase was found at a temperature Tc which increases with Fe content x up to Tc=12 K for x=0.08 in p-Bi2-xFexTe3. The easy-axis for magnetization is parallel to the C3 crystallographyc axis. In n-type samples Bi2-xFexSe3 ferromagnetic transition was not found down to 2 K. The de Haas-van Alphen effect was observed in p-Bi2-xFexTe3. The Shubnikov-de Haas effect was investigated in both types of samples. Frequency of oscillation decreases with Fe doping in p-Bi2-xFexTe3 iand increases in n-Bi2-xFexSe3. Thus Fe atoms exhibit donor properies.	dilited magnetic semiconductors;ferromagnetism;
eng	Low Temperature Ferromagnetism in the New Diluted Magnetic Semiconductor p-Bi2-xFexTe3	Single crystals of the new diluted magnetic semiconductor of p-Bi2-xFexTe3 (0<x<0.08) and n-Bi2-xFexSe3 (0<x<0.06) have been synthesized. The ferromagnetic phase was found at a temperature Tc which increases with Fe content x up to Tc=12 K for x=0.08 in p-Bi2-xFexTe3. The easy-axis for magnetization is parallel to the C3 crystallographyc axis. In n-type samples Bi2-xFexSe3 ferromagnetic transition was not found down to 2 K. The de Haas-van Alphen effect was observed in p-Bi2-xFexTe3. The Shubnikov-de Haas effect was investigated in both types of samples. Frequency of oscillation decreases with Fe doping in p-Bi2-xFexTe3 iand increases in n-Bi2-xFexSe3. Thus Fe atoms exhibit donor properies.	dilited magnetic semiconductors;ferromagnetism;

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