TY - JOUR
T1 - Ferromagnetism induced by free carriers in p-type structures of diluted magnetic semiconductors
AU - Dietl, T.
AU - Cibert, J.
AU - Kossacki, P.
AU - Ferrand, D.
AU - Tatarenko, S.
AU - Wasiela, A.
AU - Merle D'Aubigné, Y.
AU - Matsukura, F.
AU - Akiba, N.
AU - Ohno, H.
N1 - Funding Information:
The work in Poland was partly supported by KBN Grant No. 2-P03B-02417, while at Tohoku University by the “Research for the Future” Program (# JSPS-RFTF97P00202) from the Japan Society for the Promotion of Science and partly by Grant-in-Aid on Priority Area “Spin Controlled Semiconductor Nanostructures” (# 09244103) from the Ministry of Education, Japan. The collaboration was supported by Polish–French cooperation project “Polonium” and Joseph Fourier University.
PY - 2000/5
Y1 - 2000/5
N2 - An overview is given of studies aiming at elucidation of the dominant effects that control the character of magnetic ordering and the magnitude of carrier-mediated ferromagnetic interactions in various dimensionality structures of diluted magnetic semiconductors. The modulation-doped p-type quantum wells of Cd1-xMnxTe/Cd1-y-z-MgyZnzTe:N as well as epilayers of Zn1-xMnxTe:N and of Ga1-xMnxAs grown at low temperatures are discussed as examples of systems, in which ferromagnetic correlation induced by free carriers is observed. The effect of kp and spin-orbit couplings, notably in heavily doped, strained or reduced-dimensionality systems, is addressed. It is pointed out that disorder and carrier-carrier interactions have a strong influence on the spin-spin interaction, particularly in the vicinity of the metal-to-insulator transition. Outstanding properties of low-dimensional spin systems, resulting from their tendency towards the formation of spin-density waves, are described in the context of the observed peculiar domain structure.
AB - An overview is given of studies aiming at elucidation of the dominant effects that control the character of magnetic ordering and the magnitude of carrier-mediated ferromagnetic interactions in various dimensionality structures of diluted magnetic semiconductors. The modulation-doped p-type quantum wells of Cd1-xMnxTe/Cd1-y-z-MgyZnzTe:N as well as epilayers of Zn1-xMnxTe:N and of Ga1-xMnxAs grown at low temperatures are discussed as examples of systems, in which ferromagnetic correlation induced by free carriers is observed. The effect of kp and spin-orbit couplings, notably in heavily doped, strained or reduced-dimensionality systems, is addressed. It is pointed out that disorder and carrier-carrier interactions have a strong influence on the spin-spin interaction, particularly in the vicinity of the metal-to-insulator transition. Outstanding properties of low-dimensional spin systems, resulting from their tendency towards the formation of spin-density waves, are described in the context of the observed peculiar domain structure.
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U2 - 10.1016/S1386-9477(00)00098-9
DO - 10.1016/S1386-9477(00)00098-9
M3 - Conference article
AN - SCOPUS:0000202414
VL - 7
SP - 967
EP - 975
JO - Physica E: Low-Dimensional Systems and Nanostructures
JF - Physica E: Low-Dimensional Systems and Nanostructures
SN - 1386-9477
IS - 3
T2 - MSS9: The 9th International Conference on Modulated Semiconductor Structures
Y2 - 12 July 1999 through 16 July 1999
ER -