Magnetron sputtering of Bi-Sr-Ca-Cu-O thin films superconducting at liquid nitrogen temperature

1988 ◽  
Vol 38 (7) ◽  
pp. 823-824
Author(s):  
A. I. Golovaehkin ◽  
E. V. Ekimov ◽  
S. I. Krasnosvobodtsev ◽  
E. V. Pechen ◽  
B. K. Pleshko ◽  
...  
Keyword(s):  
Thin Films ◽  
Magnetron Sputtering ◽  
Liquid Nitrogen ◽  
Liquid Nitrogen Temperature

MICROWAVE DISSIPATION IN YBa2Cu3O7-δ THIN FILMS WITH IRRADIATION-INDUCED COLUMNAR DEFECTS

2000 ◽  
Vol 14 (25n27) ◽  
pp. 2822-2827 ◽  
Author(s):  
E. Silva ◽  
G. Ghigo ◽  
L. Gozzelino ◽  
C. Camerlingo ◽  
S. Sarti
Keyword(s):  
Magnetic Field ◽  
Thin Films ◽  
Liquid Nitrogen ◽  
Liquid Nitrogen Temperature ◽  
Heavy Ion ◽  
Columnar Defects ◽  
Field Dependent ◽  
The Magnetic Field

We present measurements of the magnetic field dependent microwave dissipation in a heavy-ion irradiated thin YBa 2 Cu 3 O 7-δ film, in order to study the effects of columnar defects on the pinning of vortices. Columnar defects were produced at 45° with respect to the c axis. Measurements of the microwave dissipation at 48 GHz were taken as a function of the angle between the field and the c axis, in order to compare the response along and perpendicular to the columns. The field was in the 0.3 T range. Several temperatures near the liquid nitrogen temperature were investigated. We find a dip in the dissipation when the field is aligned to the tracks. The dip is absent when the field is aligned perpendicular to the tracks, and with the same angle with respect to the crystallographic directions. The dip is not very sharp, and shows up for angles as far as 30° from the track directions. From the measurements, we estimate the pinning frequency along the columns at 80 K to be νpc ≃ 25 GHz .

Anisotropic vortex structure in YBa2Cu3O7 thin films at liquid nitrogen temperature

1991 ◽  
Vol 174 (4-6) ◽  
pp. 352-354 ◽  
Author(s):  
Litai Tong ◽  
Cungui Zhang ◽  
Haiying Chen ◽  
Shousheng Yan
Keyword(s):  
Thin Films ◽  
Liquid Nitrogen ◽  
Vortex Structure ◽  
Liquid Nitrogen Temperature

scholarly journals Charging of electron beam irradiated amorphous carbon thin films at liquid nitrogen temperature

2019 ◽  
Vol 196 ◽  
pp. 161-166 ◽  
Author(s):  
Simon Hettler ◽  
Jo Onoda ◽  
Robert Wolkow ◽  
Jason Pitters ◽  
Marek Malac
Keyword(s):  
Thin Films ◽  
Electron Beam ◽  
Liquid Nitrogen ◽  
Amorphous Carbon ◽  
Liquid Nitrogen Temperature ◽  
Carbon Thin Films

Piezoelectric Photoacoustic Spectra In CuGaSe2 Thin Films Grown by Molecular Beam Epitaxy

1997 ◽  
Vol 485 ◽  
Author(s):  
Kenji Yoshino ◽  
Daisuke Maruoka ◽  
Masakazu Kawahara ◽  
Atsuhiko Fukuyama ◽  
Kouji Maeda ◽  
...  
Keyword(s):  
Thin Films ◽  
Molecular Beam Epitaxy ◽  
Liquid Nitrogen ◽  
Molecular Beam ◽  
Liquid Nitrogen Temperature ◽  
Intrinsic Defect ◽  
Bandgap Energy ◽  
Epitaxial Layers ◽  
Photoacoustic Spectra ◽  
First Time

AbstractThe piezoelectric photoacoustic (PPA) spectra for Cu-rich CuGaSe2 (CGS)/GaAs epitaxial layers were successfully observed between liquid nitrogen and room temperatures for the first time. Bandgap energy of CGS (A band) is estimated to be 1.72 eV at liquid nitrogen temperature. The activation energies of three possible intrinsic defect levels are estimated to be about 80, 130 and 190 meV.

Reactive sputter deposition of nickel oxide thin films at liquid nitrogen temperature

2017 ◽  
Vol 56 (8) ◽  
pp. 088004 ◽  
Author(s):  
Yoshio Abe ◽  
Shun Yamauchi ◽  
Midori Kawamura ◽  
Kyung Ho Kim ◽  
Takayuki Kiba ◽  
...  
Keyword(s):  
Thin Films ◽  
Nickel Oxide ◽  
Liquid Nitrogen ◽  
Liquid Nitrogen Temperature ◽  
Sputter Deposition ◽  
Oxide Thin Films ◽  
Reactive Sputter Deposition ◽  
Nickel Oxide Thin Films

Radiation Induced Grain Growth in Transition Metals

1990 ◽  
Vol 201 ◽  
Author(s):  
P. Børgesen ◽  
D. A. Lilienfeld ◽  
H. Msaad
Keyword(s):  
Electron Microscopy ◽  
Thin Films ◽  
Transmission Electron Microscopy ◽  
Liquid Nitrogen ◽  
Grain Growth ◽  
Liquid Nitrogen Temperature ◽  
Thermal Spike ◽  
Grain Sizes ◽  
Transmission Electron ◽  
Radiation Induced

AbstractNanocrystalline self supporting thin films of Ni, Co, Cr, V, and Ti were irradiated with 600 keV Xe ions at liquid nitrogen temperature and the resulting grain growth was measured by transmission electron microscopy. Average grain sizes were seen to increase from about 10 nm to 18–35 nm, depending on the metal. Systematic variations did not support current thermal spike models.

Aging of CdSexTe1−x Thin Films near Liquid Nitrogen Temperature

1991 ◽  
Vol 124 (2) ◽  
pp. 505-511 ◽  
Author(s):  
P. J. Sebastian ◽  
V. Sivaramakrishnan
Keyword(s):  
Thin Films ◽  
Liquid Nitrogen ◽  
Liquid Nitrogen Temperature

Electron Probe Microanalysis of Frozen Hydrated Kidneys, Isolated Cells, and Cultured Cells

1982 ◽  
Vol 40 ◽  
pp. 402-403 ◽  
Author(s):  
Claude Lechene
Keyword(s):  
Liquid Nitrogen ◽  
Electron Probe Microanalysis ◽  
Electron Probe ◽  
Cultured Cells ◽  
Liquid Nitrogen Temperature ◽  
Elemental Content ◽  
Isolated Cells ◽  
Renal Tubular Cells ◽  
Diamond Saw ◽  
Saw Blade

Electron probe microanalysis of frozen hydrated kidneysThe goal of the method is to measure on the same preparation the chemical elemental content of the renal luminal tubular fluid and of the surrounding renal tubular cells. The following method has been developed. Rat kidneys are quenched in solid nitrogen. They are trimmed under liquid nitrogen and mounted in a copper holder using a conductive medium. Under liquid nitrogen, a flat surface is exposed by sawing with a diamond saw blade at constant speed and constant pressure using a custom-built cryosaw. Transfer into the electron probe column (Cameca, MBX) is made using a simple transfer device maintaining the sample under liquid nitrogen in an interlock chamber mounted on the electron probe column. After the liquid nitrogen is evaporated by creating a vacuum, the sample is pushed into the special stage of the instrument. The sample is maintained at close to liquid nitrogen temperature by circulation of liquid nitrogen in the special stage.

Field-Ion Microscopy of BCC Metals: A Study of Image Differences and Topographical Variations

1973 ◽  
Vol 31 ◽  
pp. 114-115
Author(s):  
O. T. Inal ◽  
L. E. Murr
Keyword(s):  
Liquid Nitrogen ◽  
Liquid Nitrogen Temperature ◽  
Surface Atom ◽  
Image Brightness ◽  
Field Ion Microscopy ◽  
Topographic Features ◽  
Bcc Metals ◽  
Electron Orbital ◽  
Ion Microscopy ◽  
Field Ion Microscope

When sharp metal filaments of W, Fe, Nb or Ta are observed in the field-ion microscope (FIM), their appearance is differentiated primarily by variations in regional brightness. This regional brightness, particularly prominent at liquid nitrogen temperature has been attributed in the main to chemical specificity which manifests itself in a paricular array of surface-atom electron-orbital configurations.Recently, anomalous image brightness and streaks in both fcc and bee materials observed in the FIM have been shown to be the result of surface asperities and related topographic features which arise by the unsystematic etching of the emission-tip end forms.

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