The discovery of superconductivity

Delft, Dirk van; Kes, P.H.

doi:10.1063/1.3490499

Cited by 162 publications

(113 citation statements)

References 3 publications

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“…The former was discovered by Kamerlingh-Onnes in 1911, 1 and the latter by Meissner and Ochsenfeld in 1933. 2 Almost 50 years after the initial discovery, Bardeen, Cooper and Schrieffer proposed a theory explaining the mechanism of superconductivity (BCS theory).…”

Section: Introductionmentioning

confidence: 96%

Interplay of chemical disorder and electronic inhomogeneity in unconventional superconductors

Zeljkovic

Hoffman

2013

Phys. Chem. Chem. Phys.

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Many of today's forefront materials, such as high-T c superconductors, doped semiconductors, and colossal magnetoresistance materials, are structurally, chemically and/or electronically inhomogeneous at the nanoscale. Although inhomogeneity can degrade the utility of some materials, defects can also be advantageous. Quite generally, defects can serve as nanoscale probes and facilitate quasiparticle scattering used to extract otherwise inaccessible electronic properties. In superconductors, nonstoichiometric dopants are typically necessary to achieve a high transition temperature, while both structural and chemical defects are used to pin vortices and increase critical current. Scanning tunneling microscopy (STM) has proven to be an ideal technique for studying these processes at the atomic scale.In this perspective, we present an overview of STM studies on chemical disorder in unconventional superconductors, and discuss how dopants, impurities and adatoms may be used to probe, pin or enhance the intrinsic electronic properties of these materials.

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Section: Introductionmentioning

confidence: 96%

Interplay of chemical disorder and electronic inhomogeneity in unconventional superconductors

Zeljkovic

Hoffman

2013

Phys. Chem. Chem. Phys.

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“…Since cuprate SC's with one CuO 2 plane show T c 's of ~ 35 K those with 2 CuO 2 planes ~ 92 K and with three planes ~ 134 K attempts to synthesize materials with more than 3 CuO 2 planes have been made, with no success, however. At present the highest T c of 134 K is found in the three layer mercury-cuprate system (HgBa 2 Ca 2 Cu 3 O 8+x ) with an increase to 150 K under high pressure conditions (1) and O (1) atoms) (after Wikipedia). [15].…”

Section: The Road To Copper-oxide Based High Temperature Superconductorsmentioning

confidence: 99%

“…In the decades after the discovery of superconductivity (SC) by Kammerlingh-Onnes in Hg with a critical temperature, T c , of 4.2 K, -excellently described in the Physics Today article by van Delft and Kess [1] -SC has been a challenging central topic in condensed matter physics. Superconductivity shows the fundamental property of the occurrence of vanishing dc-resistivity and the expulsion of weak magnetic fields (Meissner-Ochsenfeld effect).…”

Section: The Road To Copper-oxide Based High Temperature Superconductorsmentioning

confidence: 99%

Science and technology of cuprate-based high temperature superconductor thin films, heterostructures and superlattices—the first 30 years (Review Article)

Habermeier

2016

Low Temperature Physics

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Science and technology of cuprate-based high temperature superconductor thin films, heterostructures and superlattices -the first 30 years (Review Article) H.-U. Habermeier Science Consulting International, Niersteinerstr, 28, Stuttgart D 70499, Germany Max-Planck-Institute for Solid State Research, Heisenbergstr, 1, Stuttgart D 70569, Germany E-mail: huh@fkf.mpg.de Received May 30, 2016, published online August 25, 2016 During the three decades after the discovery of superconductivity at high temperatures in copper oxides, intense research activities generated a tremendous progress in both, mastering the scientific challenges underpinning the understanding of the properties of these chemically and structurally complex materials as well as achieving a mature technology in preparing single phase bulk specimens -including single crystals -and epitaxially grown single crystalline thin films. This review covers in addition to more basic physics oriented developments mainly technological aspects of complex oxide thin film deposition as an enabling technology to explore the physics of these materials. It consists of two parts: after a brief introduction to the materials development prior to the discovery of superconducting copper oxides, a description of the relevant properties of copper oxide superconductors with focus on YBa 2 Cu 3 O 7-δ is given, followed by the coverage of essentials of complex oxide thin film deposition technology with the copper oxides at its core. Here, the major physical vapor deposition technologies (evaporation and oxide molecular beam technology, sputtering and pulsed laser deposition) are described followed by an overview of substrate requirements to deposit high quality thin films. Opportunities by choosing special substrates with unique properties far beyond the usual mechanical support for a film are introduced with examples aside from usual lattice mismatch induced strain effects. One is the continuous modification of the strain state by poling ferroelectric oxide substrates linked to a piezoelectric effect, the other is the nanoscale tailoring of substrate step-and-terrace structures resulting in a controllable generation of planar defects in complex oxides, thus contributing to the physics of flux-line pinning in cuprate superconductors. In the second part of this review, first some highlights of single layer thin film research are given such as to tailor thin film orientation, generating well defined antiphase boundaries in YBa 2 Cu 3 O 7-δ thin films as flux-line pinning centers as well as contributions to understand fluctuation conductivity in relation to the pseudogap state. In the last section new developments in high T c cuprate based heterostructures and superlattices are reviewed with a special focus on the opportunities offered by interface-induced electronic interactions.

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“…As soon as liquid-helium temperature was reached the resistance became "practically zero" 1 . Those words noted by the Dutch physicist in his lab book signed the beginning of the superconductivity era.…”

mentioning

confidence: 99%

The super century

隆景¹

2011

Nature Mater

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The discovery of superconductivity

Abstract: A century ago Heike Kamerlinah Onnes set a new standard for physics research laboratories. But careless notebook entries have confused the story of his greatest discovery.

Cited by 162 publications

References 3 publications

Interplay of chemical disorder and electronic inhomogeneity in unconventional superconductors

Interplay of chemical disorder and electronic inhomogeneity in unconventional superconductors

Science and technology of cuprate-based high temperature superconductor thin films, heterostructures and superlattices—the first 30 years (Review Article)

The super century

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