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131.
Inosov DS Fink J Kordyuk AA Borisenko SV Zabolotnyy VB Schuster R Knupfer M Büchner B Follath R Dürr HA Eberhardt W Hinkov V Keimer B Berger H 《Physical review letters》2007,99(23):237002
Using high-resolution angle-resolved photoemission spectroscopy we have studied the momentum and photon energy dependence of the anomalous high-energy dispersion, termed waterfalls, between the Fermi level and 1 eV binding energy in several high-T_{c} superconductors. We observe strong changes of the dispersion between different Brillouin zones and a strong dependence on the photon energy around 75 eV, which we associate with the resonant photoemission at the Cu3p-->3d_{x;{2}-y;{2}} edge. We conclude that the high-energy "waterfall" dispersion results from a strong suppression of the photoemission intensity at the center of the Brillouin zone due to matrix element effects and is, therefore, not an intrinsic feature of the spectral function. This indicates that the new high-energy scale in the electronic structure of cuprates derived from the waterfall-like dispersion may be incorrect. 相似文献
132.
Geck J Borisenko SV Berger H Eschrig H Fink J Knupfer M Koepernik K Koitzsch A Kordyuk AA Zabolotnyy VB Büchner B 《Physical review letters》2007,99(4):046403
We report an angular resolved photoemission study of NaxCoO2 with x approximately 0.73 where it is found that the renormalization of the quasiparticle (QP) dispersion changes dramatically upon a rotation from GammaM to GammaK. The comparison of the experimental data to the calculated band structure reveals that the quasiparticle renormalization is most pronounced along the GammaK direction, while it is significantly weaker along the GammaM direction. We discuss the observed anisotropy in terms of multiorbital effects and point out the relevance of magnetic correlations for the band structure of NaxCoO2 with x approximately 0.75. 相似文献
133.
N. A. Tulina V. V. Sirotkin I. Yu. Borisenko A. A. Ivanov 《Bulletin of the Russian Academy of Sciences: Physics》2013,77(3):265-267
Simulations are used to study the influence of nonuniform electric field distribution at a heterojunction interface on the effect of bipolar resistive switching in oxide compounds. Computer models show that a conducting channel forms at the edge of a heterojunction area characterized by strong local increase in the electric field intensity. The computations are confirmed by the low temperature properties of metastable phases in heterojunctions based on high temperature superconductors. 相似文献
134.
Nikolai N. Kolesnikov Elena B. Borisenko Dmitrii N. Borisenko Boris A. Gnesin 《Central European Journal of Chemistry》2011,9(4):619-623
In the present study newly produced semiconductor ceramic nanopowder materials made of CdTe and Cd1−xZnxTe (CZT) are considered. Common features and differences in microstructures, phase transformations, grain growth and properties
of the ceramic materials of the binary and ternary compositions are studied.
相似文献
135.
A. V. Lekar’ L. A. Yakovishin S. N. Borisenko E. V. Vetrova N. I. Borisenko 《Journal of Analytical Chemistry》2011,66(14):1437-1440
The complexation of antibiotic levomycetin (chloroamphenicol) with triterpene glycoside α-hederin and hederasaponin C was
investigated by electrospray ionization mass spectrometry. The glycosides form complexes with levomycetin in the molar ratio
1: 1. The molecular complex of α-hederin is more stable than the one of hederasaponin C because of the presence of a free
carboxyl group in its aglycone fragment. The carboxyl group of hederasaponin C is involved into the formation of a glycosidic
bond with the trisaccharide unit and is not available for complex formation. 相似文献
136.
Semenin N. V. Borisenko A. S. Zalivako I. V. Semerikov I. A. Aksenov M. D. Khabarova K. Yu. Kolachevsky N. N. Glazyrin S. I. Lykov V. A. Karpov S. A. Karlykhanov N. G. Gryaznykh D. A. Bychenkov V. Yu. Karelina L. N. Shuravin N. S. Ionin A. S. Bakurskiy S. V. Egorov S. V. Golovchanskiy I. A. Chichkov V. I. Bol’ginov V. V. Ryazanov V. V. Kazantsev D. M. Alperovich V. L. Tkachenko V. A. Kvon Z. D. 《JETP Letters》2022,116(12):909-911
JETP Letters - An Erratum to this paper has been published: https://doi.org/10.1134/S0021364022390011 相似文献
137.
Herein the structure of the interfacial layer between the air- and water-stable ionic liquid 1-ethyl-3-methylimidazolium tris(pentafluoroethyl)trifluorophosphate ([EMIM]FAP) and Au(111) is investigated using in situ scanning tunneling microscopy (STM), distance tunneling spectroscopy (DTS) and cyclic voltammetry (CV) measurements. The in situ STM measurements reveal that structured interfacial layers can be probed in both cathodic and anodic regimes at the IL/Au(111) interface. The structure of these layers is dependent on the applied electrode potential, the number of subsequent STM scans and the scan rate. Furthermore, first DTS results show that the tunneling barrier during the 1st STM scan does not seem to change significantly in the cathodic potential regime between the ocp (-0.2 V) and -2.0 V. 相似文献
138.
V.B. Zabolotnyy D.V. Evtushinsky A.A. Kordyuk D.S. Inosov A. Koitzsch A.V. Boris G.L. Sun C.T. Lin M. Knupfer B. Büchner A. Varykhalov R. Follath S.V. Borisenko 《Physica C: Superconductivity and its Applications》2009,469(9-12):448-451
Here we apply high resolution angle-resolved photoemission spectroscopy (ARPES) using a wide excitation energy range to probe the electronic structure and the Fermi surface topology of the Ba1?xKxFe2As2 (Tc = 32 K) superconductor. We find significant deviations in the low energy band structure from that predicted in calculations. A set of Fermi surface sheets with unexpected topology is detected at the Brillouin zone boundary. At the X-symmetry point the Fermi surface is formed by a shallow electron-like pocket surrounded by four hole-like pockets elongated in Γ?X and Γ?Y directions. 相似文献
139.
Evtushinsky DV Inosov DS Urbanik G Zabolotnyy VB Schuster R Sass P Hänke T Hess C Büchner B Follath R Reutler P Revcolevschi A Kordyuk AA Borisenko SV 《Physical review letters》2010,105(14):147201
The single-layered half-doped manganite La(0.5)Sr(1.5)MnO? (LSMO), was studied by means of the angle-resolved photoemission spectroscopy (ARPES), scanning tunneling microscopy (STM), and resistivity measurements. STM revealed a smooth reconstruction-free surface; the density of states, extracted from photoemission and tunneling spectroscopy, is in agreement with transport measurements. The derived from ARPES Fermi surface (FS) nesting properties correspond to the known pattern of the charge-orbital ordering (COO), which implies that FS instability is related to the propensity to form a COO state in LSMO. 相似文献
140.
Borisenko SV Kordyuk AA Zabolotnyy V Geck J Inosov D Koitzsch A Fink J Knupfer M Büchner B Hinkov V Lin CT Keimer B Wolf T Chiuzbăian SG Patthey L Follath R 《Physical review letters》2006,96(11):117004
We apply the new-generation angle-resolved photoemission spectroscopy methodology to the most widely studied cuprate superconductor YBa2Cu3O(6+x). Considering the nodal direction, we found noticeable renormalization effects known as kinks both in the quasiparticle dispersion and scattering rate, the bilayer splitting, and evidence for strong interband scattering--all the characteristic features of the nodal quasiparticles detected earlier in Bi2Sr2CaCu2O(8+delta). The typical energy scale and the doping dependence of the kinks clearly point to their intimate relation with the spin-1 resonance seen in the neutron scattering experiments. Our findings strongly suggest a universality of the electron dynamics in the bilayer superconducting cuprates and a dominating role of the spin fluctuations in the formation of the quasiparticles along the nodal direction. 相似文献