منابع مشابه
Electron Paramagnetic Resonance of Cu Doped Na2HAs04-7H20 Single Crystals
The electron paramagnetic resonance spectra of Cu doped Na 2 HAs0 4 -7H 2 0 single crystals were studied at room temperature. The results indicate the substitutional entrance of Cu in two magnetically inequivalent Na sites. Charge compensation is supposed to be fulfilled by proton vacancies. The spin Hamiltonian parameters were determined. The ground state for Cu seems to indicate the dominance...
متن کاملVan der Waals epitaxy between the highly lattice mismatched Cu-doped FeSe and Bi2Te3
We present a structural and density functional theory study of FexCu1− xSe within the three-dimensional topological insulator Bi2Te3. The FexCu1− xSe inclusions are single-crystalline and epitaxially oriented with respect to the Bi2Te3 thin film. Aberrationcorrected scanning transmission electron microscopy and electron energy loss spectroscopy show an atomically sharp FeICu1− xSe/Bi2Te3 interf...
متن کاملTopological transport and atomic tunnelling–clustering dynamics for aged Cu-doped Bi2Te3 crystals
Enhancing the transport contribution of surface states in topological insulators is vital if they are to be incorporated into practical devices. Such efforts have been limited by the defect behaviour of Bi2Te3 (Se3) topological materials, where the subtle bulk carrier from intrinsic defects is dominant over the surface electrons. Compensating such defect carriers is unexpectedly achieved in (Cu...
متن کاملInfrared electrodynamics and ferromagnetism in the topological semiconductors Bi2Te3 and Mn-doped Bi2Te3
B. C. Chapler,1 K. W. Post,1 A. R. Richardella,2 J. S. Lee,2 J. Tao,3 N. Samarth,2 and D. N. Basov1 1Physics Department, University of California-San Diego, La Jolla, California 92093, USA 2Department of Physics, The Pennsylvania State University, University Park, Pennsylvania 16802, USA 3Brookhaven National Laboratory, Upton, New York 11973, USA (Received 21 January 2014; revised manuscript re...
متن کاملSurrounding Sensitive Electronic Properties of Bi2Te3 Nanoplates—Potential Sensing Applications of Topological Insulators
Significant efforts have been paid to exploring the fundamental properties of topological insulators (TIs) in recent years. However, the investigation of TIs as functional materials for practical device applications is still quite limited. In this work, electronic sensors based on Bi2Te3 nanoplates were fabricated and the sensing performance was investigated. On exposure to different surroundin...
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ژورنال
عنوان ژورنال: Applied Physics Letters
سال: 2014
ISSN: 0003-6951,1077-3118
DOI: 10.1063/1.4863966