TY - JOUR
T1 - Cyclotron resonance in Cd1-xFexS and Ga1-xMnxAs at megagauss magnetic fields
AU - Matsuda, Y. H.
AU - Arimoto, H.
AU - Miura, N.
AU - Twardowski, A.
AU - Ohno, H.
AU - Shen, A.
AU - Matsukura, F.
N1 - Funding Information:
This work was partially supported by a Grant-in-Aid for Scientific Research on the Priority Area `Spin-Controlled Semiconductor Nanostructures' (No.10138205) from the Ministry of Education, Science, Sports, and Culture.
PY - 1998/12/2
Y1 - 1998/12/2
N2 - We have performed infrared and far-infrared magneto-transmission experiments for Cd1-xFexS (x = 0.05) and Ga1-xMnxAs (x = 0.00004, 0.053) at very high magnetic fields up to 500 T. The cyclotron mass of electrons in Cd1-xFexS (x = 0.05) was found to be larger than that in CdS when we applied magnetic fields parallel to the c-axis of the crystal; the relative increase of the cyclotron mass shows anomalous temperature dependence at 85-300 K. Hole cyclotron resonance was observed in Ga1-xMnxAs (x = 0.00004) at 119 μm and 70.5 μm. In Ga1-xMnxAs (x = 0.053) far-infrared transmission does not show any resonance but a rapid decrease of transmission with magnetic field; the magneto-transmission spectrum depends strongly on temperature.
AB - We have performed infrared and far-infrared magneto-transmission experiments for Cd1-xFexS (x = 0.05) and Ga1-xMnxAs (x = 0.00004, 0.053) at very high magnetic fields up to 500 T. The cyclotron mass of electrons in Cd1-xFexS (x = 0.05) was found to be larger than that in CdS when we applied magnetic fields parallel to the c-axis of the crystal; the relative increase of the cyclotron mass shows anomalous temperature dependence at 85-300 K. Hole cyclotron resonance was observed in Ga1-xMnxAs (x = 0.00004) at 119 μm and 70.5 μm. In Ga1-xMnxAs (x = 0.053) far-infrared transmission does not show any resonance but a rapid decrease of transmission with magnetic field; the magneto-transmission spectrum depends strongly on temperature.
KW - Cyclotron resonance
KW - Diluted magnetic semiconductor
KW - Infrared magneto-transmission
KW - Megagauss magnetic fields
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U2 - 10.1016/S0921-4526(98)00673-5
DO - 10.1016/S0921-4526(98)00673-5
M3 - Article
AN - SCOPUS:12444295824
SN - 0921-4526
VL - 256-258
SP - 565
EP - 568
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
ER -