Aharonov-Bohm excitons at elevated temperatures in type-II ZnTe/ZnSe quantum dots

被引：67
|
作者：
Sellers, I. R. [1 ]
Whiteside, V. R. [1 ]
Kuskovsky, I. L. [2 ]
Govorov, A. O. [3 ]
McCombe, B. D. [1 ]
机构：
[1] SUNY Buffalo, Dept Phys, Buffalo, NY 14260 USA
[2] CUNY Queens Coll, Dept Phys, Flushing, NY 10031 USA
[3] Ohio Univ, Dept Phys & Astron, Athens, OH 45701 USA
来源：
PHYSICAL REVIEW LETTERS | 2008年 / 100卷 / 13期
关键词：
D O I：
10.1103/PhysRevLett.100.136405
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Optical emission from type-II ZnTe/ZnSe quantum dots demonstrates large and persistent oscillations in both the peak energy and intensity indicating the formation of coherently rotating states. Furthermore, these Aharonov-Bohm oscillations are shown to be remarkably robust and persist until 180 K. This is at least one order of magnitude greater than the typical temperatures in lithographically defined rings. To our knowledge, this is the highest temperature at which the AB effect has been observed in solid-state and molecular nanostructures.
引用
收藏
页数：4
相关论文
共 50 条
  • [1] Observation of oscillations in energy of Aharonov-Bohm excitons in type-II ZnTe/ZnSe stacked submonolayer quantum dots
    Roy, Bidisha
    Ji, Haojie
    Dhomkar, Siddharth
    Tamargo, Maria C.
    Kuskovsky, Igor L.
    [J]. PHYSICA STATUS SOLIDI C: CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 11, NO 7-8, 2014, 11 (7-8): : 1248 - 1251
  • [2] Type-II excitons in ZnTe/ZnSe quantum dots
    Andre, Regis
    Najjar, Rita
    Besombes, Lucien
    Bougerol, Catherine
    Tatarenko, Serge
    Mariette, Henri
    [J]. PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 6, NO 4, 2009, 6 (04): : 857 - 859
  • [3] Optical Aharonov-Bohm Effect in Type-II (ZnMn)Te/ZnSe Quantum Dots
    Sellers, Ian R.
    Govorov, Alexander O.
    McCombe, Bruce D.
    [J]. JOURNAL OF NANOELECTRONICS AND OPTOELECTRONICS, 2011, 6 (01) : 4 - 19
  • [4] Coherent Aharonov-Bohm oscillations in type-II (Zn,Mn)Te/ZnSe quantum dots
    Sellers, I. R.
    Whiteside, V. R.
    Govorov, A. O.
    Fan, W. C.
    Chou, W-C.
    Khan, I.
    Petrou, A.
    McCombe, B. D.
    [J]. PHYSICAL REVIEW B, 2008, 77 (24):
  • [5] Optical Aharonov-Bohm effect in stacked type-II quantum dots
    Kuskovsky, Igor L.
    MacDonald, W.
    Govorov, A. O.
    Mourokh, L.
    Wei, X.
    Tamargo, M. C.
    Tadic, M.
    Peeters, F. M.
    [J]. PHYSICAL REVIEW B, 2007, 76 (03):
  • [6] Aharonov-Bohm signature for neutral polarized excitons in type-II quantum dot ensembles
    Ribeiro, E
    Govorov, AO
    Carvalho, W
    Medeiros-Ribeiro, G
    [J]. PHYSICAL REVIEW LETTERS, 2004, 92 (12) : 126402 - 1
  • [7] Enhancement and narrowing of the Aharonov-Bohm oscillations due to built-in electric field in stacked type-II ZnTe/ZnSe quantum dots: Spectral analysis
    Roy, B.
    Ji, H.
    Dhomkar, S.
    Cadieu, F. J.
    Peng, L.
    Moug, R.
    Tamargo, M. C.
    Kim, Y.
    Smirnov, D.
    Kuskovsky, I. L.
    [J]. PHYSICAL REVIEW B, 2012, 86 (16):
  • [8] Distinguishability of stacks in ZnTe/ZnSe quantum dots via spectral analysis of Aharonov-Bohm oscillations
    Bidisha Roy
    Haojie Ji
    Siddharth Dhomkar
    Fred J. Cadieu
    Le Peng
    Richard Moug
    Maria C. Tamargo
    Igor L. Kuskovsky
    [J]. The European Physical Journal B, 2013, 86
  • [9] Distinguishability of stacks in ZnTe/ZnSe quantum dots via spectral analysis of Aharonov-Bohm oscillations
    Roy, Bidisha
    Ji, Haojie
    Dhomkar, Siddharth
    Cadieu, Fred J.
    Peng, Le
    Moug, Richard
    Tamargo, Maria C.
    Kuskovsky, Igor L.
    [J]. EUROPEAN PHYSICAL JOURNAL B, 2013, 86 (02):
  • [10] Exciton storage in type-II quantum dots using the optical Aharonov-Bohm effect
    Climente, Juan I.
    Planelles, Josep
    [J]. APPLIED PHYSICS LETTERS, 2014, 104 (19)
12345