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10.1038/srep14128 http://scihub22266oqcxt.onion/10.1038/srep14128 C4569898!4569898!26370337     free     free     free Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534       Sci+Rep 2015 ; 5 (ä): ä Nephropedia Template TP {{tp|p=26370337|t=2015. Manifestation of a Second Dirac Surface State and Bulk Bands in THz Radiation from Topological Insulators |pdf=|usr=}}{{26370337}} gab.com Text Manifestation of a Second Dirac Surface State and Bulk Bands in THz Radiation from Topological Insulators JO: Sci Rep http://www.kidney.de/pget.php?&tw=1&pmid=26370337 #FOAvip Topological insulators (TIs) are interesting quantum matters that have a narrow bandgap for bulk and a Dirac-cone-like conducting surface state (SS). The recent discovered second Dirac surface state (SS) and bulk bands (BBs) located ~1.5?eV above the first SS are important for optical coupling in TIs. Here, we report on the time-domain measurements of THz radiation generated from TIs n-type Cu0.02Bi2Se3 and p-type Bi2Te3 single crystals by ultrafast optical pulse excitation. The observed polarity-reversal of the THz pulse originated from transient current is unusual, and cannot be reconciled with the photo-Dember effect. The second SS and BBs are found to be indispensable for the explanation of the unusual phenomenon. Thanks to the existence of the second SS and BBs, TIs manifest an effective wide band gap in THz generation. The present study demonstrates that time-domain THz spectroscopy provide rich information of the optical coupling and the electronic structure of TIs. Twit Text FOAVip Manifestation of a Second Dirac Surface State and Bulk Bands in THz Radiation from Topological Insulators ????Sci Rep http://www.kidney.de/pget.php?&tw=1&pmid=26370337 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=26370337 #FOAvip English Wikipedia <ref>{{Cite pmid|26370337}}</ref> Manifestation of a Second Dirac Surface State and Bulk Bands in THz Radiation from Topological Insulators #MMPMID26370337 Tu CM; Yeh TT; Tzeng WY; Chen YR; Chen HJ; Ku SA; Luo CW; Lin JY; Wu KH; Juang JY; Kobayashi T; Cheng CM; Tsuei KD; Berger H; Sankar R; Chou FC Sci Rep 2015[]; 5 (ä): ä PMID26370337show ga Topological insulators (TIs) are interesting quantum matters that have a narrow bandgap for bulk and a Dirac-cone-like conducting surface state (SS). The recent discovered second Dirac surface state (SS) and bulk bands (BBs) located ~1.5?eV above the first SS are important for optical coupling in TIs. Here, we report on the time-domain measurements of THz radiation generated from TIs n-type Cu0.02Bi2Se3 and p-type Bi2Te3 single crystals by ultrafast optical pulse excitation. The observed polarity-reversal of the THz pulse originated from transient current is unusual, and cannot be reconciled with the photo-Dember effect. The second SS and BBs are found to be indispensable for the explanation of the unusual phenomenon. Thanks to the existence of the second SS and BBs, TIs manifest an effective wide band gap in THz generation. The present study demonstrates that time-domain THz spectroscopy provide rich information of the optical coupling and the electronic structure of TIs. äManifestation of a Second Dirac Surface State and Bulk Bands in THz Ra(epmc).pdf DeepDyve Pubget Overpricing