Zobrazeno 1 - 10
of 285
pro vyhledávání: '"H. Dwelk"'
Publikováno v:
Physica B: Condensed Matter. 443:103-106
The effects of in-plane polarization change on the determination of the hole density of weakly under-doped (Bi, Pb)-2212 single crystals has been studied by x-ray absorption spectroscopy (XAS). The XAS signal at the CuL3 edge (925–940 eV) and O K e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4258816bd3b701e0c5aa36268b31ae4b
https://doi.org/10.1016/j.physb.2014.02.060
https://doi.org/10.1016/j.physb.2014.02.060
Publikováno v:
Physica C: Superconductivity. 485:163-167
One of the most puzzling anomalies of high- T C cuprates is the strong temperature dependence of the Hall coefficient ( R H ) and the hole density ( n H ). Gor’kov and Teitel’baum (GT) proposed by using experimental data of La 2− x Sr x CuO 4 (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ea2538da32394fd5210067d7cba740e8
https://doi.org/10.1016/j.physc.2012.11.007
https://doi.org/10.1016/j.physc.2012.11.007
Autor:
Ahmad Kamal Ariffin, Christoph Janowitz, Recardo Manzke, A. Krapf, O. Lübben, L. Dudy, Beate Müller, H. Dwelk
Publikováno v:
Journal of Superconductivity and Novel Magnetism. 22:51-55
Inhomogeneities in any form, affecting either the structural properties as superstructures or the electronic degrees of freedom as stripes, play an essential role in the unusual properties of the cuprates. Bi-cuprates, favored for photoemission studi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d0642d5ee28fcd0d9b809b0088d3320
https://doi.org/10.1007/s10948-008-0360-x
https://doi.org/10.1007/s10948-008-0360-x
Autor:
R.P. Blum, O. Lübben, V.P. Martovitsky, B. Ziegler, H. Dwelk, L. Dudy, Beate Müller, Recardo Manzke, A. Krapf, Christoph Janowitz
Publikováno v:
Solid State Communications. 143:442-445
It is well known that the (1x5) superstructure of Bi cuprate superconductors will be suppressed due to optimum doping with Pb. Nevertheless, a Fermi surface map of (Pb,La)-Bi2201 (Pb = 0.4 and La = 0.4) determined by angular resolved photoemission (A
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7fdb97c50548f40b76a7cfea23aa1b61
https://doi.org/10.1016/j.ssc.2007.05.038
https://doi.org/10.1016/j.ssc.2007.05.038
Autor:
R.-St. Unger, Recardo Manzke, C. Ast, M. Schneider, Christoph Janowitz, L. Dudy, A. Müller, Hartmut Höchst, H. Dwelk, Rolf Müller, A. Krapf
Publikováno v:
Journal of Superconductivity: Incorporating Novel Magnetism. 15:147-152
We present a comprehensive study performed with high-resolution angle-resolved photoemission spectroscopy on triple-layered Bi2Sr2Ca2Cu3O10 + δ single crystals. By measurements above T C the Fermi surface topology defined by the Fermi level crossing
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f48567a6f6be1674237bc67bf6af3553
https://doi.org/10.1023/a:1014698020632
https://doi.org/10.1023/a:1014698020632
Publikováno v:
Solid State Sciences. 4:109-115
The 57Fe-Moessbauer spectrum of (dmpipzH2)2[FeIII(H2O)2Cl4][FeIII Cl4]Cl2 (1) consists of two doublets caused by a strongly distorted octahedral and a non-distorted tetrahedral component. Both (dmpipzH2)[FeIIIBr4]2 (2) and (trienH2)[FeIIIBr4]Br (3) s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f080371ceeb2971a6dcc8ad5c441b225
https://doi.org/10.1016/s1293-2558(01)01193-1
https://doi.org/10.1016/s1293-2558(01)01193-1
Autor:
T. Stemmler, H. Dwelk, Lutz Kipp, A. Krapf, Rolf Müller, M. Schneider, Christoph Janowitz, Michael Skibowski, K. Roßnagel, R.-St. Unger, Recardo Manzke
Publikováno v:
Journal of Superconductivity: Incorporating Novel Magnetism. 14:659-668
A first Fermi surface map of a single-layer high-Tc superconductor is presented. The experiments were carried out on optimally doped Bi2Sr2 − xLaxCuO6 + δ (x = 0.40) with synchrotron radiation which allow to discuss in detail the strong polarizati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6cf45ea6a3619eba418fd625920d3fab
https://doi.org/10.1023/a:1013235407579
https://doi.org/10.1023/a:1013235407579
Autor:
W. Frentrup, H. Dwelk, J. Augustin, Christoph Janowitz, Th. Böker, Volker Eyert, Recardo Manzke
Publikováno v:
Physical Review B. 62:10812-10823
We have studied the electronic structure of the layered compound $\mathrm{Td}\ensuremath{-}{\mathrm{WTe}}_{2}$ experimentally using high-resolution angle-resolved photoelectron spectroscopy, and theoretically using density-functional based augmented
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3e5c4ffa65a97ca259d51cc7091b3cf3
https://doi.org/10.1103/physrevb.62.10812
https://doi.org/10.1103/physrevb.62.10812
Publikováno v:
Journal of Superconductivity. 13:883-887
On single crystals of the single-layer (n = 1) high-T c superconductor Bi2Sr2−x La x CuO6+δ at optimal doping (x = 0.4), the electron spectroscopies x-ray absorption (XAS) and high-resolution angle-resolved photoemission (ARPES) were performed. Th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::187814077a345f584a6e207919cd41a3
https://doi.org/10.1023/a:1026430432376
https://doi.org/10.1023/a:1026430432376
Publikováno v:
Journal of Alloys and Compounds. 442:216-218
Electrical transport studies have been carried out on single crystals of metallic MoTe 2 . Temperature-dependent electrical resistivity, ρ ( T ) − ρ ( 0 ) , was found proportional to T 2 up to 50 K. The magneto-resistance measurements showed the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::459af3b4121997bb77efa90823315725
https://doi.org/10.1016/j.jallcom.2006.09.157
https://doi.org/10.1016/j.jallcom.2006.09.157