Autor: Richter, J. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: An apparatus for sequential pulsed plasma beam treatment in combination with Arc PVD deposition
Autorzy:: Stanisławski, J.
Piekoszewski, J.
Richter, E.
Werner, Z.
Powiązania:: https://bibliotekanauki.pl/articles/147034.pdf
Data publikacji:: 2002
Wydawca:: Instytut Chemii i Techniki Jądrowej
Tematy:: Arc-PVD
interlayer
pulse plasma treatment
Opis:: A hybrid type of apparatus is described which enables one to form a thin multi-layer film on the surface of any kind of solid substrate. In one process, the surface is treated with a high intensity pulse plasma beam which introduces the chosen kind of atoms into the near-surface layer of the substrate. In the second process, following the first without breaking the vacuum, the coating is formed by arc PVD (physical vapour deposition) process. Two examples of coatings formed on metallic and ceramic substrates are presented.
Źródło:: Nukleonika; 2002, 47, 3; 119-122
0029-5922
1508-5791
Pojawia się w:: Nukleonika
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Ion Implantation and Transient Melting: A New Approach to Formation of Superconducting MgB$\text{}_{2}$ Phases
Autorzy:: Piekoszewski, J.
Kempiński, W.
Stankowski, J.
Prokert, F.
Richter, E.
Stanisławski, J.
Werner, Z.
Szymczyk, W.
Powiązania:: https://bibliotekanauki.pl/articles/2041609.pdf
Data publikacji:: 2004-12
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 74.70.-b
74.78.-w
Opis:: An attempt to synthesize superconducting MgB$\text{}_{2}$ inter-metallic compound from the liquid state is presented. The process consists of two steps. In the first one, boron ions are implanted into a magnesium substrate. In the second one, the near-surface region of such system is melted by short, intense hydrogen plasma pulses without necessity of annealing in Mg vapor. A magnetically modulated microwave absorption method was used to detect superconducting regions in the obtained MgB$\text{}_{2}$ layer. Percolation between nano-regions (islands) of MgB$\text{}_{2}$ has not been observed. However, a superconducting state of the insulated islands has been experimentally proven with transition temperatures T$\text{}_{C}$ as high as 31 K.
Źródło:: Acta Physica Polonica A; 2004, 106, 6; 861-868
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Superconducting Regions and Kondo Effect of MgB$\text{}_{2}$ Formed by Implantation of Magnesium Ions into Boron Substrate
Autorzy:: Trybuła, Z.
Kempiński, W.
Andrzejewski, B.
Piekara-Sady, L.
Kaszyński, J.
Trybuła, M.
Piekoszewski, J.
Stanisławski, J.
Barlak, M.
Richter, E.
Powiązania:: https://bibliotekanauki.pl/articles/2046803.pdf
Data publikacji:: 2006-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 74.70.-b
74.78.-w
Opis:: The results of investigation of the polycrystalline boron implanted by magnesium and argon plasma pulse treatment are presented. The four-probe electric conductivity measurements and magnetically modulated microwave absorption showed the presence of superconducting islands below the temperature of 25 K. Below T=23 K we detected the Kondo effect, a logarithmic increase in the resistivity as the temperature is lowered, due to iron impurity.
Źródło:: Acta Physica Polonica A; 2006, 109, 4-5; 657-660
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Formation of Superconducting Regions of MgB_2 by Implantation of Boron Ions into Magnesium Substrate
Autorzy:: Trybuła, Z.
Kempiński, W.
Andrzejewski, B.
Piekara-Sady, L.
Kaszyński, J.
Piekoszewski, J.
Werner, Z.
Richter, E.
Prokert, F.
Stanisławski, J.
Barlak, M.
Powiązania:: https://bibliotekanauki.pl/articles/2043433.pdf
Data publikacji:: 2005-07
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 74.70.-b
74.78.-w
Opis:: The results of investigation of the MgB$\text{}_{2}$ inter-metallic compound with the use of boron ions implantation and plasma pulse treatment are presented. The samples were characterized by: four-probe electric conductivity measurements, magnetically modulated microwave absorption, and magnetic measurements. For hydrogen and argon pulsed plasma treatment the samples with T$\text{}_{c}$ ranging from 10 K to 32 K were obtained. The superconducting phase does not form a continuous layer since the resistivity does not fall down to zero. Apparently, separate islands of superconducting phase are connected through metallic Mg paths. All samples are still below the percolation threshold.
Źródło:: Acta Physica Polonica A; 2005, 108, 1; 165-170
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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