TY - JOUR
T1 - Magneto-photoluminescence in Cd1-xMnxTe
AU - Nakahara, Jun'ichiro
AU - Nouchi, Taihei
AU - Arai, Hiroyuki
AU - Mogi, Iwao
AU - Kido, Giyuu
AU - Watanabe, Junji
N1 - Funding Information:
The authors would like to thank Professor Y. Oka of Tohoku University for single crystals of Cd1~Mn5Teand Mr. T. Kokubun for his assistance in experiments. This work has been supported in part by a Grant-in-Aid for Scientific Research (B-01490001) from the Ministry of Education, Science and Culture. We are indebted to the members of the Cryogenic Center of Hokkaido University and of the High Field Laboratory for Superconducting Materials and Cryogenic Center of Tohoku University.
PY - 1992/2/2
Y1 - 1992/2/2
N2 - Photoluminescence (PL) spectra near the fundamental absorption edge are investigated in Cd1-xMnxTe (x = 0.03 to 0.3) at 4.2 K in magnetic fields up to 23 T for Faraday configuration. For PL of free excitons and neutral-donor(acceptor)-bound-exciton transitions in low concentration of Mn (x = 0.03 and 0.05), diamagnetic shifts are observed in the region of high magnetic fields. In the case of x = 0.1 and 0.3 the decrease in energy of these PL peaks is observed in the region of high magnetic fields with increasing magnetic fields corresponding to magnetization steps and large phenomenological temperature T0 describing spin interaction. We determine exchange integrals and T0 using the magnetic field dependence of PL peaks. For x ≤ 0.1 PL spectra of self-trapped magnetic polaron are observed but they disappear at low magnetic fields as ∼1 T.
AB - Photoluminescence (PL) spectra near the fundamental absorption edge are investigated in Cd1-xMnxTe (x = 0.03 to 0.3) at 4.2 K in magnetic fields up to 23 T for Faraday configuration. For PL of free excitons and neutral-donor(acceptor)-bound-exciton transitions in low concentration of Mn (x = 0.03 and 0.05), diamagnetic shifts are observed in the region of high magnetic fields. In the case of x = 0.1 and 0.3 the decrease in energy of these PL peaks is observed in the region of high magnetic fields with increasing magnetic fields corresponding to magnetization steps and large phenomenological temperature T0 describing spin interaction. We determine exchange integrals and T0 using the magnetic field dependence of PL peaks. For x ≤ 0.1 PL spectra of self-trapped magnetic polaron are observed but they disappear at low magnetic fields as ∼1 T.
UR - http://www.scopus.com/inward/record.url?scp=0027107536&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0027107536&partnerID=8YFLogxK
U2 - 10.1016/0022-0248(92)90866-H
DO - 10.1016/0022-0248(92)90866-H
M3 - Article
AN - SCOPUS:0027107536
SN - 0022-0248
VL - 117
SP - 830
EP - 834
JO - Journal of Crystal Growth
JF - Journal of Crystal Growth
IS - 1-4
ER -