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A N Titov - One of the best experts on this subject based on the ideXlab platform.
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crystal and electronic structure of high Temperature superconducting compound y1 xcaxba2cu3oy in the Temperature Interval 80 300 k
Journal of Alloys and Compounds, 2016Co-Authors: S G Titova, A. V. Lukoyanov, S. V. Pryanichnikov, Lubov A. Cherepanova, A N TitovAbstract:Abstract For Y 1−х Са х Ba 2 Cu 3 O y with varying oxygen and calcium content, the change of crystal structure at cooling from room Temperature to 80 K has been investigated. The main change is associated with a shift of apical oxygen atoms. Using determined unit cell parameters as function of Temperature, the coefficients of linear thermal expansion have been calculated as α X = 1/ X ·( dX/dT ), where Х = a , b , c – unit cell dimensions. For the compound without calcium all α X values demonstrate anomalous behavior such as growing at cooling in Temperature Interval T 1 ÷ T 2 ∼ 150 ÷ 225 K. The calculation of electronic structure at Temperatures above, below and within this Interval shows the appearance of the electronic states density peak for Ba and O4 atoms. It is explained by the localization of charge carriers with the participation of the lattice distortion in a form of apical Cu–O bond compression. As the material Y 0.9 Са 0.1 Ba 2 Cu 3 O y regardless of the oxygen content possess low and constant coefficient of thermal expansion along all crystallographic directions, that makes this material suitable for superconducting films and other composites.
A. V. Lukoyanov - One of the best experts on this subject based on the ideXlab platform.
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crystal and electronic structure of high Temperature superconducting compound y1 xcaxba2cu3oy in the Temperature Interval 80 300 k
Journal of Alloys and Compounds, 2016Co-Authors: S G Titova, A. V. Lukoyanov, S. V. Pryanichnikov, Lubov A. Cherepanova, A N TitovAbstract:Abstract For Y 1−х Са х Ba 2 Cu 3 O y with varying oxygen and calcium content, the change of crystal structure at cooling from room Temperature to 80 K has been investigated. The main change is associated with a shift of apical oxygen atoms. Using determined unit cell parameters as function of Temperature, the coefficients of linear thermal expansion have been calculated as α X = 1/ X ·( dX/dT ), where Х = a , b , c – unit cell dimensions. For the compound without calcium all α X values demonstrate anomalous behavior such as growing at cooling in Temperature Interval T 1 ÷ T 2 ∼ 150 ÷ 225 K. The calculation of electronic structure at Temperatures above, below and within this Interval shows the appearance of the electronic states density peak for Ba and O4 atoms. It is explained by the localization of charge carriers with the participation of the lattice distortion in a form of apical Cu–O bond compression. As the material Y 0.9 Са 0.1 Ba 2 Cu 3 O y regardless of the oxygen content possess low and constant coefficient of thermal expansion along all crystallographic directions, that makes this material suitable for superconducting films and other composites.
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Crystal and electronic structure of high Temperature superconducting compound Y1−xCaxBa2Cu3Oy in the Temperature Interval 80–300 K
Journal of Alloys and Compounds, 2016Co-Authors: Svetlana G. Titova, A. V. Lukoyanov, S. V. Pryanichnikov, Lubov A. Cherepanova, Alexander TitovAbstract:Abstract For Y 1−х Са х Ba 2 Cu 3 O y with varying oxygen and calcium content, the change of crystal structure at cooling from room Temperature to 80 K has been investigated. The main change is associated with a shift of apical oxygen atoms. Using determined unit cell parameters as function of Temperature, the coefficients of linear thermal expansion have been calculated as α X = 1/ X ·( dX/dT ), where Х = a , b , c – unit cell dimensions. For the compound without calcium all α X values demonstrate anomalous behavior such as growing at cooling in Temperature Interval T 1 ÷ T 2 ∼ 150 ÷ 225 K. The calculation of electronic structure at Temperatures above, below and within this Interval shows the appearance of the electronic states density peak for Ba and O4 atoms. It is explained by the localization of charge carriers with the participation of the lattice distortion in a form of apical Cu–O bond compression. As the material Y 0.9 Са 0.1 Ba 2 Cu 3 O y regardless of the oxygen content possess low and constant coefficient of thermal expansion along all crystallographic directions, that makes this material suitable for superconducting films and other composites.
Alexander Titov - One of the best experts on this subject based on the ideXlab platform.
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Crystal and electronic structure of high Temperature superconducting compound Y1−xCaxBa2Cu3Oy in the Temperature Interval 80–300 K
Journal of Alloys and Compounds, 2016Co-Authors: Svetlana G. Titova, A. V. Lukoyanov, S. V. Pryanichnikov, Lubov A. Cherepanova, Alexander TitovAbstract:Abstract For Y 1−х Са х Ba 2 Cu 3 O y with varying oxygen and calcium content, the change of crystal structure at cooling from room Temperature to 80 K has been investigated. The main change is associated with a shift of apical oxygen atoms. Using determined unit cell parameters as function of Temperature, the coefficients of linear thermal expansion have been calculated as α X = 1/ X ·( dX/dT ), where Х = a , b , c – unit cell dimensions. For the compound without calcium all α X values demonstrate anomalous behavior such as growing at cooling in Temperature Interval T 1 ÷ T 2 ∼ 150 ÷ 225 K. The calculation of electronic structure at Temperatures above, below and within this Interval shows the appearance of the electronic states density peak for Ba and O4 atoms. It is explained by the localization of charge carriers with the participation of the lattice distortion in a form of apical Cu–O bond compression. As the material Y 0.9 Са 0.1 Ba 2 Cu 3 O y regardless of the oxygen content possess low and constant coefficient of thermal expansion along all crystallographic directions, that makes this material suitable for superconducting films and other composites.
S. V. Pryanichnikov - One of the best experts on this subject based on the ideXlab platform.
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crystal and electronic structure of high Temperature superconducting compound y1 xcaxba2cu3oy in the Temperature Interval 80 300 k
Journal of Alloys and Compounds, 2016Co-Authors: S G Titova, A. V. Lukoyanov, S. V. Pryanichnikov, Lubov A. Cherepanova, A N TitovAbstract:Abstract For Y 1−х Са х Ba 2 Cu 3 O y with varying oxygen and calcium content, the change of crystal structure at cooling from room Temperature to 80 K has been investigated. The main change is associated with a shift of apical oxygen atoms. Using determined unit cell parameters as function of Temperature, the coefficients of linear thermal expansion have been calculated as α X = 1/ X ·( dX/dT ), where Х = a , b , c – unit cell dimensions. For the compound without calcium all α X values demonstrate anomalous behavior such as growing at cooling in Temperature Interval T 1 ÷ T 2 ∼ 150 ÷ 225 K. The calculation of electronic structure at Temperatures above, below and within this Interval shows the appearance of the electronic states density peak for Ba and O4 atoms. It is explained by the localization of charge carriers with the participation of the lattice distortion in a form of apical Cu–O bond compression. As the material Y 0.9 Са 0.1 Ba 2 Cu 3 O y regardless of the oxygen content possess low and constant coefficient of thermal expansion along all crystallographic directions, that makes this material suitable for superconducting films and other composites.
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Crystal and electronic structure of high Temperature superconducting compound Y1−xCaxBa2Cu3Oy in the Temperature Interval 80–300 K
Journal of Alloys and Compounds, 2016Co-Authors: Svetlana G. Titova, A. V. Lukoyanov, S. V. Pryanichnikov, Lubov A. Cherepanova, Alexander TitovAbstract:Abstract For Y 1−х Са х Ba 2 Cu 3 O y with varying oxygen and calcium content, the change of crystal structure at cooling from room Temperature to 80 K has been investigated. The main change is associated with a shift of apical oxygen atoms. Using determined unit cell parameters as function of Temperature, the coefficients of linear thermal expansion have been calculated as α X = 1/ X ·( dX/dT ), where Х = a , b , c – unit cell dimensions. For the compound without calcium all α X values demonstrate anomalous behavior such as growing at cooling in Temperature Interval T 1 ÷ T 2 ∼ 150 ÷ 225 K. The calculation of electronic structure at Temperatures above, below and within this Interval shows the appearance of the electronic states density peak for Ba and O4 atoms. It is explained by the localization of charge carriers with the participation of the lattice distortion in a form of apical Cu–O bond compression. As the material Y 0.9 Са 0.1 Ba 2 Cu 3 O y regardless of the oxygen content possess low and constant coefficient of thermal expansion along all crystallographic directions, that makes this material suitable for superconducting films and other composites.
Lubov A. Cherepanova - One of the best experts on this subject based on the ideXlab platform.
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crystal and electronic structure of high Temperature superconducting compound y1 xcaxba2cu3oy in the Temperature Interval 80 300 k
Journal of Alloys and Compounds, 2016Co-Authors: S G Titova, A. V. Lukoyanov, S. V. Pryanichnikov, Lubov A. Cherepanova, A N TitovAbstract:Abstract For Y 1−х Са х Ba 2 Cu 3 O y with varying oxygen and calcium content, the change of crystal structure at cooling from room Temperature to 80 K has been investigated. The main change is associated with a shift of apical oxygen atoms. Using determined unit cell parameters as function of Temperature, the coefficients of linear thermal expansion have been calculated as α X = 1/ X ·( dX/dT ), where Х = a , b , c – unit cell dimensions. For the compound without calcium all α X values demonstrate anomalous behavior such as growing at cooling in Temperature Interval T 1 ÷ T 2 ∼ 150 ÷ 225 K. The calculation of electronic structure at Temperatures above, below and within this Interval shows the appearance of the electronic states density peak for Ba and O4 atoms. It is explained by the localization of charge carriers with the participation of the lattice distortion in a form of apical Cu–O bond compression. As the material Y 0.9 Са 0.1 Ba 2 Cu 3 O y regardless of the oxygen content possess low and constant coefficient of thermal expansion along all crystallographic directions, that makes this material suitable for superconducting films and other composites.
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Crystal and electronic structure of high Temperature superconducting compound Y1−xCaxBa2Cu3Oy in the Temperature Interval 80–300 K
Journal of Alloys and Compounds, 2016Co-Authors: Svetlana G. Titova, A. V. Lukoyanov, S. V. Pryanichnikov, Lubov A. Cherepanova, Alexander TitovAbstract:Abstract For Y 1−х Са х Ba 2 Cu 3 O y with varying oxygen and calcium content, the change of crystal structure at cooling from room Temperature to 80 K has been investigated. The main change is associated with a shift of apical oxygen atoms. Using determined unit cell parameters as function of Temperature, the coefficients of linear thermal expansion have been calculated as α X = 1/ X ·( dX/dT ), where Х = a , b , c – unit cell dimensions. For the compound without calcium all α X values demonstrate anomalous behavior such as growing at cooling in Temperature Interval T 1 ÷ T 2 ∼ 150 ÷ 225 K. The calculation of electronic structure at Temperatures above, below and within this Interval shows the appearance of the electronic states density peak for Ba and O4 atoms. It is explained by the localization of charge carriers with the participation of the lattice distortion in a form of apical Cu–O bond compression. As the material Y 0.9 Са 0.1 Ba 2 Cu 3 O y regardless of the oxygen content possess low and constant coefficient of thermal expansion along all crystallographic directions, that makes this material suitable for superconducting films and other composites.
