Optical orientation

Yuri Kusrayev, Gottfried Landwehr
2008 Semiconductor Science and Technology  
Boris Petrovich Zakharchenya (on his sixtieth birthday) Zhores I Alferov, A S Borovik-Romanov, Yurii M Kagan et al. -Recent citations Spin-orbit splitting of valence subbands in semiconductor nanostructures M. V. Durnev et al -Spin-orbit Hanle effect in high-mobility quantum wells A. Poshakinskiy and S. Tarasenko -This content was downloaded from IP address 207.241.231.82 on 24/07 This issue is dedicated to the memory of Boris Petrovich Zakharchenya, who died at the age of 77 in April 2005. He
more » ... in April 2005. He was an eminent scientist and a remarkable man. After studying physics at Leningrad University he joined the Physico-Technical Institute (now the A F Ioffe Institute) in 1952 and became the co-worker of Evgeny Feodorovich Gross, shortly after the exciton was discovered in his laboratory. The experiments on cuprous oxide crystals in the visible spectral range showed a hydrogen-like spectrum, which was interpreted as excitonic absorption. The concept of the exciton had been conceived some years earlier by Jacov Frenkel at the Physico-Technical Institute. Immediately after joining Gross, Zakharchenya succeeded in producing spectra of unprecedented quality. Subsequently the heavy and the light hole series were found. Also, Landau splitting was discovered when a magnetic field was applied. The interpretation of the discovery was thrown into doubt by Russian colleagues and it took some time, before the correct interpretation prevailed. Shortly before his death, Boris wrote the history of the discovery of the exciton, which has recently been published in Russian in a book celebrating the 80th anniversary of his birth [1]. The book also contains essays by Boris on various themes, not only on physics, but also on literature. Boris was a man of unusually wide interests, he was not only fascinated by physics, but also loved literature, art and music. This can be seen in the first article of this issue The Play of Light in Crystals which is an abbreviated version of his more complete history of the discovery of the exciton. It also gives a good impression of the personality of Boris. One of us (GL) had the privilege to become closely acquainted with him, while he was a guest professor at the University of Würzburg. During that time
doi:10.1088/0268-1242/23/11/110301 fatcat:3gigxhmenfcptcytqvdjgkw2vi