Zobrazeno 1 - 10
of 22
pro vyhledávání: '"M.F. von Schoenermark"'
Autor:
D.T. Haslam, A.S. Nikoghosyan, M.F. von Schoenermark, F.M. Huber, M. Stepper, J.S. López, H.P. Roeser
Publikováno v:
Acta Astronautica. 69:235-239
For a 1-dimensional array of equidistant particles with equal masses the concepts of quantum harmonic oscillation (QHO) and particle-in-the-box (PiB) have been applied in a general form. It turns out that the lowest PiB energy level is lower than the
Autor:
F. Hetfleisch, J.S. López, H.P. Roeser, A.S. Nikoghosyan, M.F. von Schoenermark, M. Stepper, D.T. Haslam, F.M. Huber
Publikováno v:
Acta Astronautica. 67:546-552
Nanostructured GaAs Schottky barrier diodes are used as low noise THz heterodyne detectors. Different diodes show that the electron transport is ballistic and given by an optimized depletion thickness DDepl which is shorter than the mean free path le
Autor:
J.S. López, F.M. Huber, M.F. von Schoenermark, H.P. Roeser, J. Vernerey, D.T. Haslam, A.S. Nikoghosyan
Publikováno v:
Acta Astronautica. 65:1179-1183
The double doped unit cell of La2-ΔCa1+ΔCu2O6+δLa2-ΔCa1+ΔCu2O6+δ (LCCO-52) consists of two chemical formulas, La2CaCu2O7 and Ca3Cu2O6 which are responsible for the occurrence of superconductivity with n=2 superconducting CuO2 planes per chemica
Autor:
A. Moritz, M. Stepper, H.P. Roeser, F.M. Huber, F. Hetfleisch, M.F. von Schoenermark, A.S. Nikoghosyan
Publikováno v:
Acta Astronautica. 65:289-294
It has been demonstrated that the correlation between the doping distance and the critical transition temperature Tc for P-type HTSCs also applies to double doped N-type HTSCs. It is suggested that electron doped HTSCs also form superconducting curre
Publikováno v:
Acta Astronautica. 64:391-394
Fluorine-doped iron-based layered LnO 1 - Δ F Δ FeAs with Ln = La , Gd, Ce, Pr, Nd, Sm shows a strong correlation between FeF2 positions and the critical transition temperature T c . It is suggested that the F-doped Fe2O2 plane serves as the superc
Autor:
A.S. Nikoghosyan, F. Hetfleisch, M.F. von Schoenermark, H.P. Roeser, A. Moritz, M. Stepper, Felix Huber
Publikováno v:
Acta Astronautica. 62:733-736
A correlation has been found between the Cu 3 + -ion/oxygen deficiency positions in the CuO 2 plane and the critical transition temperature T c in the high temperature superconducting (HTSC) material YBa 2 Cu 3 O 7 - δ . Two modes are responsible fo
Autor:
M.F. von Schoenermark, H.P. Roeser, P. Leschinski, M. Toberman, A.S. Nikoghosyan, Felix Huber
Publikováno v:
Acta Astronautica. 64:1011-1013
Oxygen deficiency in the iron-based HTSC GdFeAsO 1− δ seems to create a parallelogram shaped Fe 2+ -ion/oxygen deficiency pattern in the Fe 2 O 2 plane in c -direction. These two-dimensional nanostructures form superconducting current channels whi
Autor:
H.P. Roeser, D.T. Haslam, M. Stepper, J.S. López, A.S. Nikoghosyan, M.F. von Schoenermark, F.M. Huber
The bond length ( x ) of transition metals Nb, V, Ta and Hg represents the shortest atomic separation in a crystal unit cell. It is suggested that there exists a strong correlation between ( x ) and the inverse of the critical superconducting transit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c2031a19003a9f52f013aa608ac7544c
https://elib.dlr.de/68356/
https://elib.dlr.de/68356/
Autor:
H.P. Roeser, M.F. von Schoenermark, J.S. López, M. Stepper, D.T. Haslam, A.S. Nikoghosyan, F.M. Huber
Parent materials of high-temperature superconductors (HTSC) need to be doped to become superconducting. The optimum doping for maximum critical transition temperature Tc has been analyzed for more than 20 materials. Assuming a uniform doping distribu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7abb2a92e58be976f8ed4690cb1f2f4a
https://elib.dlr.de/68344/
https://elib.dlr.de/68344/
Publikováno v:
2007 Joint 32nd International Conference on Infrared and Millimeter Waves and the 15th International Conference on Terahertz Electronics.
It is well known and it has been shown experimental evidence that the critical transition temperature Tc of any type of superconductor depends among other criteria on the crystal structure. Very good examples are thallium, mercury, lanthanum, tin and