Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Dimitrios I. Anyfantis"'
Autor:
Dimitrios I. Anyfantis, Alexandros Barnasas, Nikolaos C. Diamantopoulos, Constantinos M. Tsakiris, Georg Schmidt, Evangelos Th. Papaioannou, Panagiotis Poulopoulos
Publikováno v:
Micro, Vol 4, Iss 1, Pp 157-169 (2024)
Perpendicular magnetic anisotropy at transition metal/oxide interfaces plays a significant role in technological applications such as magnetic storage and spintronics. In this study, we investigate the effects of thermal annealing and Pt ultrathin in
Externí odkaz:
https://doaj.org/article/b327f924996347348bc994f17991eaed
Autor:
Nikolaos Kanistras, Laura Scheuer, Dimitrios I. Anyfantis, Alexandros Barnasas, Garik Torosyan, René Beigang, Ovidiu Crisan, Panagiotis Poulopoulos, Evangelos Th. Papaioannou
Publikováno v:
Nanomaterials, Vol 14, Iss 2, p 215 (2024)
THz radiation emitted by ferromagnetic/non-magnetic bilayers is a new emergent field in ultra-fast spin physics phenomena with a lot of potential for technological applications in the terahertz (THz) region of the electromagnetic spectrum. The role o
Externí odkaz:
https://doaj.org/article/0edee6343fad4e9da47b1bb4a0a37a6a
Autor:
Dimitrios I. Anyfantis, Camillo Ballani, Nikos Kanistras, Alexandros Barnasas, Ioannis Tsiaoussis, Georg Schmidt, Evangelos Th. Papaioannou, Panagiotis Poulopoulos
Publikováno v:
Materials, Vol 16, Iss 4, p 1378 (2023)
Co/CoO multilayers are fabricated by means of radio-frequency magnetron sputtering. For the formation of each multilayer period, a Co layer is initially produced followed by natural oxidation. Platinum is used not only as buffer and capping layers, b
Externí odkaz:
https://doaj.org/article/9701675566204f74a6898d9d045c2d9e
Autor:
Alexandros Barnasas, Christos S. Garoufalis, Dimitrios I. Anyfantis, Panagiotis Poulopoulos, Sotirios Baskoutas
Publikováno v:
Materials, Vol 15, Iss 23, p 8700 (2022)
Radio frequency magnetron sputtering conducted in a high vacuum with a base pressure of 1×10−6 mbar was used to deposit ultrathin palladium films on Corning glass. The thickness of these films ranged from 0.4 to 13 nanometers. PdO films were produ
Externí odkaz:
https://doaj.org/article/b5c43d857e1a450c979b1cbc227949bd
Autor:
Alexandros Barnasas, Christos S. Garoufalis, Dimitrios I. Anyfantis, Nikolaos Bouropoulos, Panagiotis Poulopoulos, David B. Hayrapetyan, Sotirios Baskoutas
Publikováno v:
Atoms, Vol 9, Iss 4, p 70 (2021)
Thin Co films were deposited on quartz and Corning glass by radio frequency magnetron sputtering. The films were postannealed at 500 °C in a furnace in air atmosphere. The resulting samples were examined with X-ray diffraction experiments, which rev
Externí odkaz:
https://doaj.org/article/82f923dcefd944e69d8737530e17d670
Autor:
Nikolaos C. Diamantopoulos, Alexandros Barnasas, Christos. S. Garoufalis, Dimitrios I. Anyfantis, Nikolaos Bouropoulos, Panagiotis Poulopoulos, Sotirios Baskoutas
Publikováno v:
Nanomaterials, Vol 10, Iss 12, p 2379 (2020)
Thin Titanium films were fabricated on quartz substrates by radio frequency magnetron sputtering under high vacuum. Subsequent annealing at temperatures of 600 ∘C in air resulted in single-phase TiO2 with the structure of rutile, as X-ray diffracti
Externí odkaz:
https://doaj.org/article/8f2dc23d36ed4664bf2d4c6bc27531d6
Autor:
Alexandros Barnasas, Nikolaos C. Diamantopoulos, Dimitrios I. Anyfantis, Nikolaos Bouropoulos, Politis Constantin, Panagiotis Poulopoulos
Publikováno v:
Nano Hybrids and Composites. 36:1-12
Thin Mo films in the thickness range between 1 and 164 nm have been deposited on high-quality quartz and Corning glass substrates by Radio Frequency (RF) magnetron sputtering under high vacuum (base pressure ~ 3 × 10-7 mbar). The sputtering target w
Autor:
Nikos Kanistras, Vassilios Kapaklis, Alexandros Barnasas, Camillo Ballani, Panagiotis Poulopoulos, Dimitrios I. Anyfantis, Evangelos Th. Papaioannou, Georg Schmidt
Publikováno v:
Micro
Volume 1
Issue 1
Pages 5-54
Volume 1
Issue 1
Pages 5-54
Ultrathin films of Ni0.9Co0.1 were grown by radio frequency magnetron sputtering. By means of a periodic natural oxidation procedure they were transformed into Ni0.9Co0.1/NiCoO multilayers. Room temperature hysteresis loops recorded via the magneto-o
Autor:
A. G. Chronis, Alexandros Barnasas, Maria Tsarmpopoulou, Dimitrios Ntemogiannis, Dimitrios I. Anyfantis, Spyridon Grammatikopoulos, Mihail M. Sigalas, Panagiotis Poulopoulos
Publikováno v:
Coatings, Vol 11, Iss 893, p 893 (2021)
Coatings
Volume 11
Issue 8
Coatings
Volume 11
Issue 8
Ag/Pd multilayers and AgPd alloyed ultrathin films were deposited on Corning glass by magnetron sputtering. After being annealed in a furnace in air at 460 °C, self-assembled nanoparticles were formed. Localized surface plasmon resonances were obser
Autor:
Dimitrios I. Anyfantis, A. Stamatelatos, Vassilios Kapaklis, Eirini Sarigiannidou, Panagiotis Poulopoulos, Dimitrios Ntemogiannis, Laetitia Rapenne
Publikováno v:
IEEE Magnetics Letters. 10:1-5
We report on the significant enhancement of perpendicular magnetic anisotropy of Ni/NiO multilayers after mild annealing up to 90 min at 250 °C. Transmission electron microscopy shows that after annealing, a partial crystallization of the initially