Latest News from Elsevier's Physica E: Low-dimensional Systems and Nanostructures
Dear Dr Mochan,
We are pleased to announce the publication of 4 new invited reviews:
Polaritonic devices
Pages 1543-1568
T.C.H. Liew, I.A. Shelykh, G. Malpuech
Volume 43, Issue 9
Abstract
We review the current hopes for applications of exciton-polaritons in semiconductor microcavities. These quasi-particles have become distinguished in recent years for a variety of different effects including Bose-Einstein condensation, ballistic spin current propagation and polarisation sensitive bistability. Bose-Einstein condensation is related to ultra low-threshold lasing, which has been demonstrated at room temperature and currently captures a significant research effort towards electrical carrier injection. Inspired by spintronics, the spin structure of polaritons gives rise to the field of spinoptronics, which presents optical analogues of the Datta and Das transistor and Aharonov-Bohm ring interferometer. Bistability, enhanced with the polarisation degree of freedom, gives rise to long-living spin memory elements, spin logic gates and polariton neurons for the construction of all-optical and hybrid optoelectronic circuits.
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Molecular spintronics
Pages 1295-1317
Masashi Shiraishi, Tadaaki Ikoma
Volume 43, Issue 7
Abstract
Molecular spintronics is recognized as an attractive new research direction in the field of spintronics, following to metallic spintronics and inorganic semiconductor spintronics, and attracts many people in recent decades. The purpose of this manuscript is to describe the history of molecular spintronics by introducing important achievements and to show the current status of this field. In addition, the authors briefly introduce several theories for implementing studies in molecular spintronics.
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Semiconductor spin noise spectroscopy: Fundamentals, accomplishments, and challenges
Pages 569-587
Georg M. MÃller, Michael Oestreich, Michael RÃmer, Jens HÃbner
Volume 43, Issue 2
Abstract
Semiconductor spin noise spectroscopy (SNS) has emerged as a unique experimental tool that utilizes spin fluctuations to provide profound insight into undisturbed spin dynamics in doped semiconductors and semiconductor nanostructures. The technique maps ever present stochastic spin polarization of free and localized carriers at thermal equilibrium via the Faraday effect onto the light polarization of an off-resonant probe laser and was transferred from atom optics to semiconductor physics in 2005. The inimitable advantage of spin noise spectroscopy to all other probes of semiconductor spin dynamics lies in the fact that in principle no energy has to be dissipated in the sample, i.e., SNS exclusively yields the intrinsic, undisturbed spin dynamics and promises optical non-demolition spin measurements for prospective solid state based optical spin quantum information devices. SNS is especially suitable for small electron ensembles as the relative noise increases with decreasing number of electrons. In this review, we first introduce the basic principles of SNS and the difference in spin noise of donor bound and of delocalized conduction band electrons. We continue the introduction by discussing the spectral shape of spin noise and prospects of spin noise as a quantum interface between light and matter. In the main part, we give a short overview about spin relaxation in semiconductors and summarize corresponding experiments employing SNS. Finally, we give in-depth insight into the experimental aspects and discuss possible applications of SNS.
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Models of synthesis of uniform colloids and nanocrystals
Pages 1-12
Vyacheslav Gorshkov, Vladimir Privman
Volume 43, issue 1
Abstract
We present modeling approaches to explain mechanisms of control of uniformity (narrow distribution) of sizes and shapes in synthesis of nanosize crystals and micron-size colloids. We consider those situations when the nanocrystals are formed by burst nucleation. The colloids are then self-assembled by aggregation of nanocrystals. The coupled kinetic processes are both controlled by diffusional transport, yielding well-defined colloid dispersions used in many applications. We address aspects of modeling of particle structure selection, ranging from nucleation to growth by aggregation and to mechanisms of emergence of particle shapes.
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We hope these reviews will be useful for your research!
With kind regards,
Karine van Wetering
Publisher Physica E
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