Collective exciton magnetic polarons in quantum wells with semimagnetic barriers

被引：19

作者：

Kavokin, A ^{[1
]}

Gil, B

Bigenwald, P

机构：

[1] Univ Montpellier 2, Etud Semicond Grp, F-34095 Montpellier, France

[2] Univ Roma Tor Vergata 2, Dipartimento Ingn & Elettron, Ist Nazl Fis Mat, I-00133 Rome, Italy

[3] Univ Avignon & Pays Vaucluse, Phys Mat Lab, Avignon, France

来源：

PHYSICAL REVIEW B | 1998年 / 57卷 / 08期

关键词：

D O I：

10.1103/PhysRevB.57.R4261

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A mechanism for exciton Bose condensation is suggested. We show that the interaction of localized exciton magnetic polarons (EMP's) can lead to the formation of a free collective exciton magnetic polaron (CEMP) able to move as a whole particle. Critical conditions for this transition and characteristics of the CEMP are found. We interpret the recent data on giant magnetic polaron mobility in ZnSe/ZnMnxSe1-x quantum wells [G. A. Balchin, C. D. Poweleit, and L. M. Smith, in Proceedings of the 23rd International Conference on the Physics of Semiconductors, edited by M. Scheffler and R. Zimmermann (World Scientific, Singapore 1996), p. 2055] as a manifestation of the free CEMP formation due to clusterization of long-living indirect EMP's. [S0163-1829(98)52308-9].

引用

页码：R4261 / R4264

页数：4

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