Study of Oxygen Diffusion in Superconducting YBa&lt;sub&gt;2&lt;/sub&gt;Cu&lt;sub&gt;3&lt;/sub&gt;O&lt;sub&gt;7-δ&lt;/sub&gt; by Low Frequency Mechanical Spectroscopy

Woirgard, J.; Gadaud, P.; Rivière, A.; Kaya, Beril

doi:10.4028/www.scientific.net/msf.119-121.719

Cited by 5 publications

(1 citation statement)

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“…Several groups have performed experiments involving anelastic measurement for the purpose of investigating oxygen migration in YBa 2 Cu 3 O y (Y123) [1][2][3][4][5][6][7][8][9][10][11][12][13][14] and RBa 2 Cu 3 O y (R123, R = rare earth) [15][16][17]. The oxygen migration behaviour in R123 is considerably influenced by the ionic size of the rare-earth ion [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Internal friction and elastic modulus of Nd_xY_1-xBa₂Cu₃O_y(x= 0.0-1.0) at 200 kHz near the orthorhombic-to-tetragonal phase transition

Inagaki¹,

Ozawa

Suzuki

2000

Supercond. Sci. Technol.

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The internal friction and Young's modulus of a series of superconductors NdxY1-xBa2Cu3Oy (x = 0.0-1.0) were measured over the temperature range from 300 to 1050 K using a 200 kHz LiNbO3 piezoelectric composite oscillator. Anelastic relaxation peaks due to oxygen migration were observed at about 850 K. The minimum Young's modulus, which is related to the orthorhombic-to-tetragonal phase transition, was also observed near this temperature. The temperature at the minimum Young's modulus decreased with an increase in the neodymium composition. In contrast, the internal friction peak temperature showed an unsystematic shift with an increase in x, while changes of the average cell structure exhibited a linear relationship when plotted versus the average ionic radius for trivalent rare-earth ions with the coordination number eight.

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Section: Introductionmentioning

confidence: 99%

Internal friction and elastic modulus of Nd_xY_1-xBa₂Cu₃O_y(x= 0.0-1.0) at 200 kHz near the orthorhombic-to-tetragonal phase transition

Inagaki¹,

Ozawa

Suzuki

2000

Supercond. Sci. Technol.

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Internal friction of superconducting YBa2Cu3O6+x wires at 200 kHz under in situ heat treatment

Ozawa

Inagaki

Suzuki

1999

Journal of Elec Materi

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Using piezoelectric LiNbO 3 crystal oscillator method at 200 kHz, we have measured internal friction and modulus of YBa 2 Cu 3 O 6+x short wires with 1 mmdiameter and about 5mm length under in situ cyclic heating-cooling treatment at temperatures of 300-1020K. Polycrystalline YBa 2 Cu 3 O 6+x wires show anelastic behavior as well as orthorhombic-to-tetragonal (O-T) phase transition within present temperature range. There appears a strong internal friction peak below the O-T transition temperature, corresponding to the atomic site relaxation between oxygen and a vacancy in the Cu-O plane of oxygen defective YBa 2 Cu 3 O 6+x . A novel peak is observed after the cyclic heat treatments at around 700K. This relaxation is attributed to the hopping movement of oxygen in the defective local structure of YBa 2 Cu 3 O 6+x .

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Internal friction of RBa2Cu3Oy (R=Y, Er, Ho, Dy, Sm and Nd) at 200 kHz near orthorhombic-to-tetragonal phase transition

Inagaki

Teshima

Ozawa

et al. 2000

Physica C: Superconductivity

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Study of Oxygen Diffusion in Superconducting YBa<sub>2</sub>Cu<sub>3</sub>O<sub>7-δ</sub> by Low Frequency Mechanical Spectroscopy

Cited by 5 publications

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Internal friction and elastic modulus of Nd_xY_1-xBa₂Cu₃O_y(x= 0.0-1.0) at 200 kHz near the orthorhombic-to-tetragonal phase transition

Internal friction and elastic modulus of Nd_xY_1-xBa₂Cu₃O_y(x= 0.0-1.0) at 200 kHz near the orthorhombic-to-tetragonal phase transition

Internal friction of superconducting YBa2Cu3O6+x wires at 200 kHz under in situ heat treatment

Internal friction of RBa2Cu3Oy (R=Y, Er, Ho, Dy, Sm and Nd) at 200 kHz near orthorhombic-to-tetragonal phase transition

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Study of Oxygen Diffusion in Superconducting YBa<sub>2</sub>Cu<sub>3</sub>O<sub>7-δ</sub> by Low Frequency Mechanical Spectroscopy

Cited by 5 publications

References 0 publications

Internal friction and elastic modulus of NdxY1-xBa2Cu3Oy(x= 0.0-1.0) at 200 kHz near the orthorhombic-to-tetragonal phase transition

Internal friction and elastic modulus of NdxY1-xBa2Cu3Oy(x= 0.0-1.0) at 200 kHz near the orthorhombic-to-tetragonal phase transition

Internal friction of superconducting YBa2Cu3O6+x wires at 200 kHz under in situ heat treatment

Internal friction of RBa2Cu3Oy (R=Y, Er, Ho, Dy, Sm and Nd) at 200 kHz near orthorhombic-to-tetragonal phase transition

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Internal friction and elastic modulus of Nd_xY_1-xBa₂Cu₃O_y(x= 0.0-1.0) at 200 kHz near the orthorhombic-to-tetragonal phase transition

Internal friction and elastic modulus of Nd_xY_1-xBa₂Cu₃O_y(x= 0.0-1.0) at 200 kHz near the orthorhombic-to-tetragonal phase transition