Flux quantization in a high-Tc superconductor

Gough, C.E.; Colclough, M. S.; Forgan, E. M.; Jordan, R.G.; Keene, M.N.; Muirhead, C. M.; Rae, A. I. M.; Thomas, Neil; Abell, J.S.; Sutton, S.

doi:10.1038/326855a0

Cited by 241 publications

(72 citation statements)

References 2 publications

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“…There is also an experimental evidence for singlet (even parity) pairing [15][16][17]. On the other hand Neutron scattering experiments indicate the agglomeration of holes into linear strings [3][4][5][6][7].…”

Section: / 2 2 10mentioning

confidence: 99%

“…cp h e Wb , which demonstrates Cooper pairing by two units of electron charge [14,15]. There is also an experimental evidence for singlet (even parity) pairing [15][16][17].…”

Section: / 2 2 10mentioning

confidence: 99%

“…It was observed that the magnetic flux through a ring of cupper oxide HTSC (YBCO-for example) is quantized in multiples of 15 …”

Section: Adapting the DC Theory To The Present Problemmentioning

confidence: 99%

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The Superconductivity of the Double Correlated Linear Aggregations of Holes in the Cuprates

Dayan¹

2012

J Supercond Nov Magn

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Here I extend my last work about the origin of the pseudo-gaps in underdoped cuprates (arXiv: cond-mat. 1011.3206), to include the mechanism of superconductivity. This is done by adapting the formalism of the double correlations in systems with nested Fermi surfaces to the semi one dimensional system of strings of holes. It is proposed that magnetic interaction is crucial for the establishment of the pseudogap and the high temperature superconductivity. It is shown that superconductivity disturbs the completeness of the strings of holes, and creates fluctuations in them. This, in turn, reduces the magnetic interaction and the pseudogap order.

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Section: / 2 2 10mentioning

confidence: 99%

“…cp h e Wb , which demonstrates Cooper pairing by two units of electron charge [14,15]. There is also an experimental evidence for singlet (even parity) pairing [15][16][17].…”

Section: / 2 2 10mentioning

confidence: 99%

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The Superconductivity of the Double Correlated Linear Aggregations of Holes in the Cuprates

Dayan¹

2012

J Supercond Nov Magn

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“…The theory, though valid only for weak-coupling, not only provided a microscopic model for superconductivity, but it also made many highly specific and quantitative predictions including explaining the isotope effect, predicting the T = 0 energy gap ∆(0) obeying the universal relation, 2∆(0) ≃ 3.53 k B T c where the transition temperature T c is the smallest solution of ∆(T c ) = 0, and in explaining T -dependences of ultrasonic attenuation and nuclear magnetic resonance relaxation rates [3]. Stronger coupling would not guarantee higher-than-pair clusterings, e.g., tetramers, etc., since these higher-order charge clusters have not been detected at all in magnetic-flux quantization measurements in either conventional superconductors (specifically tin [4] and lead [5]) nor in so-called "high-T c " compounds such as YBaCuO [6]: the smallest flux unit observed is hc/2e rather than the originally expected hc/e and it is never smaller than hc/2e.…”

Section: Introductionmentioning

confidence: 99%

One-dimensional Cooper pairing

Mendoza

Fortes

Llano

et al. 2011

Physica C: Superconductivity

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We study electron pairing in a one-dimensional (1D) fermion gas at zero temperature under zero-and finite-range, attractive, two-body interactions. The binding energy of Cooper pairs (CPs) with zero total or center-of-mass momentum (CMM) increases with attraction strength and decreases with interaction range for fixed strength. The excitation energy of 1D CPs with nonzero CMM display novel, unique properties. It satisfies a dispersion relation with two branches: a phonon-like linear excitation for small CP CMM; this is followed by roton-like quadratic excitation minimum for CMM greater than twice the Fermi wavenumber, but only above a minimum threshold attraction strength. The expected quadratic-in-CMM dispersion in vacuo when the Fermi wavenumber is set to zero is recovered for any coupling. This paper completes a three-part exploration initiated in 2D and continued in 3D.

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“…Since the discovery of the high T c superconductivity [1], the study of the micro mechanisms of this new type high T c copper oxide superconductors has attracted great attention in this field [2][3][4]. On the basis of some results of experiments, many theoretical models have gradually been set up.…”

Section: Introductionmentioning

confidence: 99%

Characteristics of the Oxygen Function in High Tc Copper Oxide Superconductors

Huang¹,

Cheng²

2013

JMSE-B

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Abstract:Comments on the studies of the oxygen functions in high T c copper oxide superconductors and the effects of isotope were made. And the characteristics of the oxygen functions in high T c copper oxide superconductors were discussed on the basis of the dual-body structure model of superconductors. It is pointed out that the characteristics of the oxygen functions in high T c copper oxide superconductors are that they influence the crystal structure and the carriers density and participate in the electron phonons coupling.

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Flux quantization in a high-Tc superconductor

Cited by 241 publications

References 2 publications

The Superconductivity of the Double Correlated Linear Aggregations of Holes in the Cuprates

The Superconductivity of the Double Correlated Linear Aggregations of Holes in the Cuprates

One-dimensional Cooper pairing

Characteristics of the Oxygen Function in High Tc Copper Oxide Superconductors

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