Last edited by Goltizragore
Wednesday, August 12, 2020 | History

4 edition of Bismuth and Thallium Cuprate Superconductors found in the catalog.

Bismuth and Thallium Cuprate Superconductors

A special issue of the journal Phase Transitions

by C. N. R. Rao

  • 328 Want to read
  • 16 Currently reading

Published by Routledge .
Written in English

    Subjects:
  • Electricity, magnetism & electromagnetism,
  • Electrochemistry & magnetochemistry,
  • Technology,
  • Technology & Industrial Arts,
  • Science/Mathematics,
  • Material Science,
  • Technology / Material Science,
  • Superconductors & Superconductivity

  • The Physical Object
    FormatPaperback
    Number of Pages96
    ID Numbers
    Open LibraryOL7695459M
    ISBN 100677259301
    ISBN 109780677259307
    OCLC/WorldCa35539587

    @article{osti_, title = {Tunneling in cuprate and bismuthate superconductors}, author = {Zasadzinski, J F and Huang, Q and Tralshawala, N and Gray, K E}, abstractNote = {Tunneling measurements using a point-contact technique are reported for the following high temperature superconducting oxides: Ba{sub 1{minus}{ital x}}K{sub {ital x}}BiO{sub 3}(BKBO), Nd{sub 2{minus}{ital . Hysteretic force-separation relations for Tl, Bi and Y based superconductors and a magnet are compared. The magnitudes of the forces, the hysteresis, and the magnetic stiffness were all largest in the three-layer Tl2Ba2Ca2Cu3Ox compound, indicating strong flux pinning. The hysteresis in both two and three layer thallium compounds was sufficient to generate attractive forces as the.

    Systematics in the thermopower behaviour of several series of bismuth and thallium cuprate superconductors: An interpretation of the temperature variation and the sign of the thermopower. By CNR Rao, TV Ramakrishnan and N Kumar. Cite. BibTex; Full citation. After this famous discovery many cuprate high-T c superconductors have been synthesized. The cuprate superconductor HgBa 2 Ca 2 Cu 3 O 8 + x (Hg) has the highest critical temperature (T c = K) at 1 atm (Schilling & Cantoni, ). In , a new type of high-T c superconductor containing iron (without copper) has been discovered (Yang.

    Suppression of T_c in bilayer bismuth and thallium cuprates, by substitution of Co impurities at Cu sites, are taken for examination. T_c suppression data on differently doped Bi and Tl   Bismuth can also be replaced with thallium or mercury, which results in the highest T c material known (~K). BSCCO competes with YBCO as the most technologically useful material. YBCO has been used in magnetic field applications because it is easier to pin flux. YBCO can be used to grow high-T c SQUIDS with grain-boundary Josephson junctions.


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Bismuth and Thallium Cuprate Superconductors by C. N. R. Rao Download PDF EPUB FB2

The superconductor with the highest transition temperature at ambient pressure is the cuprate of mercury, barium, and calcium, at around K. There are other superconductors with higher recorded transition temperatures - for example lanthanum superhydride at.

Rao, C. is the author of 'Bismuth and Thallium Cuprate SuperConductors' with ISBN and ISBN Sunshine, S A, and Vanderah, T A. Preparation of bismuth- and thallium-based cuprate cal report, Oct Sep United States: N.

p., Web. Provides information on all chemical, physical and material aspects of this class of cuprates, and covers their applications.

This work provides data on the chemistry, solid-state chemistry, handling and safety requirements of thallium. Book Description Table of Contents Book Description Provides coverage of the ongoing investigations on bismuth-based high-temperature cuprate superconductors, integrating scattered research activities and literature from 70 leading scientists throughout the world.

Bismuth strontium calcium copper oxide, or BSCCO (pronounced "bisko"), is a type of cuprate superconductor having the generalized chemical formula Bi 2 Sr 2 Ca n−1 Cu n O 2n+4+x, with n = 2 being the most commonly studied compound (though n = 1 and n = 3 have Bismuth and Thallium Cuprate Superconductors book received significant attention).

Discovered as a general class inBSCCO was the first high-temperature superconductor. Provides coverage of the ongoing investigations on bismuth-based high-temperature cuprate superconductors, integrating scattered research activities and.

Skip to main content. T&F logo. DOI link for Bismuth-Based High-Temperature Superconductors. Bismuth-Based High-Temperature Superconductors book. Table of Contents "Historical Perspective on the Discovery of Tl-Based HTSC Oxides, Allen M. Hermann Solid-State Chemistry of Thallium Oxides, J.

Gopalakrishnan Crystallographic Aspects, Yuichi Shimakawa Extended Defects and Redox Mechanisms in Thallium Cuprates, Bernard Raveau, Maryvonne Hervieu, and Claude Michel Structures and Superstructures of Tl-Ba-Ca-Cu-O Superconductors.

Based on a Bi – L 3 edge X-ray absorption spectroscopic study of superconducting bismuth cuprates and model Bi compounds, it is shown that Bi is essentially in the 3 + state in the cuprates.

Tl – L 3 absorption edge studies a number of thallium cuprate superconductors along with those of model compounds show some evidence for the occupancy. Systematics in the thermopower behaviour of several series of bismuth and thallium cuprate superconductors: An interpretation of the temperature variation and.

Physica C () North-Holland SYSTEMATICS IN THE THERMOPOWER BEHAVIOUR OF SEVERAL SERIES OF BISMUTH AND THALLIUM CUPRATE SUPERCONDUCTORS: An interpretation of the temperature variation and the sign of the thermopower C.N.R.

RAO #, T.V. RAMAKRISHNAN a and N. KUMAR a Solid State and Structural Chemistry Unit. Thallium-Based High-Tempature Superconductors book.

DOI link for Thallium-Based High-Tempature Superconductors. Thallium-Based High-Tempature Superconductors book. Edited By Allen Hermann. Edition 1st Edition. First Published eBook Published 27 August Pub. location Boca Raton. Systematics of c-axis phonons in the thallium- and bismuth-based cuprate superconductors A.

Tsvetkov Laboratory of Solid State Physics, Materials Science Center, Groningen University, Nijenborgh 4, AG Groningen, The Netherlands and P.

Lebedev Physical Institute, Russian Academy of Sciences, Leninsky Prosp Moscow, Russia. These are Yttrium, Bismuth, Thallium, andMercury based superconductors. Despite the extensiveresearch carried out after that, practicalapplications faced limitations.

One of thelimitations is the fact that the maximum Tc is stillfar below room temperature. Variouschemical-processing methods can be used in hope toovercome the first problem. Ceramic Superconductors. Ceramic superconductors are generally heavy metal oxides, and neutron diffraction has long been superior for the precise location of light atoms, such as hydrogen and oxygen, in the presence of heavy atoms.

From: Encyclopedia of Materials: Science and Technology, Related terms: Bismuth; Cuprate; Superconducting. Two families were discovered successively: the bismuth copper oxides and the thallium copper oxides. Some time later, the investigation of lead cuprates allowed new superconductors to be synthesized.

The crystal chemistry of these systems has not yet been investigated in an exhaustive way, so that many phases, superconducting or not, remain to. Electron Spin Resonance and low-field microwave absorption are reported for a range of Bi- and Tl-based superconductors in the Bi-Ca-Sr-Cu-O, Bi(Pb)-Ca-Sr-Cu-O and Tl-Ca-Ba-Cu-O series together with the new monophasic series (Tl Pb )(Ca A )Sr 2 Cu 2 O y (A=Y or Er) superconductors.

In contrast to two recent reports of ESR in the Tl-Ca-Ba-Cu-O and Bi(Pb)-Ca-Sr. Abstract. Based on a Bi-L 3 edge X-ray absorption spectroscopic study of superconducting bismuth cuprates and model Bi compounds, it is shown that Bi is essentially in the 3 + state in the cuprates.

Tl-L 3 absorption edge studies a number of thallium cuprate superconductors along with those of model compounds show some evidence for the occupancy of the Tl-6s band, but Tl 3+ is the prepondarant.

We have studied single‐grain‐boundary junctions in the neodymium‐, bismuth‐, and thallium‐based cuprate superconductors and find that they behave as weak links, qualitatively similar to the YBa 2 Cu 3 O 7−δ superconductor. In general, the grain boundary critical current is determined by flux flow for small misorientation angles and by Josephson junctionlike coupling for large angles.

Book: All Authors / Contributors: Rainer Wesche. Find more information about: ISBN: Preparation of Bismuth-based Cuprate Superconductor Films -- Preparation of Thallium-based Cuprate Superconductor Films. Cuprate superconductors usually feature copper oxides in both the oxidation states 3+ and 2+.

For example, YBa 2 Cu 3 O 7 is described as Y 3+ (Ba 2+) 2 (Cu 3+)(Cu 2+) 2 (O 2−) superconducting cuprates are layered materials having a complex structure described as a superlattice of superconducting CuO 2 layers separated by spacer layers, where the misfit strain between different layers.Systematics in the thermopower behaviour of several series of bismuth and thallium cuprate superconductors: An interpretation of the temperature variation and the sign of the thermopower By CNR Rao, TV Ramakrishnan and N Kumar.Rijksuniversiteit Groningen founded in - top university.

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