activity
20042020
most citedEvidence of precursor superconductivity as high as 180 K from infrared spectroscopy

140 citations · 460 across the 17 of their papers we have counts for

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cond-mat.supr-con2020

Hall number, specific heat and superfluid density of overdoped high-Tc cuprates

J. G. Storey

Despite often being dismissively described as exhibiting conventional Fermi-liquid-like behaviour, heavily overdoped high-Tc cuprates sport several unexpected features. Thermodynam…

cond-mat.supr-con2019★ 32 cited

Locating the pseudogap closing point in cuprate superconductors: absence of entrant or reentrant behavior

Jeffery L. Tallon, James G. Storey, John R. Cooper +1

Current descriptions of the pseudogap in underdoped cuprates envision a doping-dependent transition line which descends monotonically towards zero just beyond optimal dopi…

cond-mat.supr-con2018★ 11 cited

The onset of dissipation in high-temperature superconductors: magnetic hysteresis and field dependence

Evgeny F. Talantsev, Nick M. Strickland, Stuart C. Wimbush +4

Recently, we showed that the self-field transport critical current, Ic(sf), of a superconducting wire can be defined in a more fundamental way than the conventional (and arbitrary)…

cond-mat.supr-con2017★ 48 cited

London penetration depth and thermal fluctuations in the sulphur hydride 203 K superconductor

Evgeny F. Talantsev, Wayne P. Crump, James G. Storey +1

Recently, compressed HS has been shown to become superconducting at 203 K under a pressure of 155 GPa. One might expect fluctuations to dominate at such temperatures. Using the…

cond-mat.supr-con2013★ 15 cited

Electric field gradient wave (EFGW) in iron-based superconductor Ba(0.6)K(0.4)Fe2As2 studied by Mössbauer spectroscopy

A. K. Jasek, K. Komedera, A. Blachowski +4

The optimally doped 122 iron-based superconductor Ba(0.6)K(0.4)Fe2As2 has been studied by 57Fe Moessbauer spectroscopy versus temperature ranging from 4.2 K till 300 K with particu…

cond-mat.supr-con2013★ 38 cited

The electronic specific heat of Ba1-xKxFe2As2 (x=0 to 1.0) from 2K to 380K

J. G. Storey, J. W. Loram, J. R. Cooper +2

Using a high-resolution differential technique we have determined the electronic specific heat coefficient gamma(T) of Ba1-xKxFe2As2 with x=0 to 1.0, at temperatures (T) from 2K to…

cond-mat.supr-con2013★ 32 cited

Coexistence of the superconducting energy gap and pseudogap above and below the transition temperature of superconducting cuprates

Jeffery L. Tallon, Felix Barber, James G. Storey +1

We express the superconducting gap, , in terms of thermodynamic functions in both - and d-wave symmetries. Applying to BiSrCaCuO and YCa$_{0.2}…

cond-mat.supr-con2012★ 11 cited

Two-component electron fluid in underdoped high- cuprate superconductors

J. G. Storey, J. L. Tallon

Evidence from NMR of a two-component spin system in cuprate high- superconductors is shown to be paralleled by similar evidence from the electronic entropy so that a two-compo…

cond-mat.supr-con2010★ 140 cited

Evidence of precursor superconductivity as high as 180 K from infrared spectroscopy

A. Dubroka, M. Roessle, K. W. Kim +13

We show that a multilayer analysis of the infrared c-axis response of RBa2Cu3O7-d (R=Y, Gd, Eu) provides important new information about the anomalous normal state properties of un…

cond-mat.supr-con2010★ 6 cited

The electronic specific heat of Ba1-xKxFe2As2 from 2K to 380K

J. G. Storey, J. W. Loram, J. R. Cooper +2

Using a differential technique, we have measured the specific heats of polycrystalline Ba1-xKxFe2As2 samples with x=0, 0.1 and 0.3, between 2K and 380K and in magnetic fields 0 to…

cond-mat.supr-con2009★ 2 cited

Energy gaps in high- superconductors: BCS after all?

J. L. Tallon, J. G. Storey

A major impediment to solving the problem of high- superconductivity is the ongoing confusion about the magnitude, structure and doping dependence of the superconducting gap,…

cond-mat.supr-con2009★ 2 cited

Fluctuations and reduction in cuprate superconductors

J. L. Tallon, J. G. Storey, J. W. Loram

We analyse fluctuations about in the specific heat of (Y,Ca)BaCuO, YBaCuO and BiSrCaCuO. The mean-field transition temperature…

cond-mat.supr-con2009

Thermoelectric power of high-Tc superconductors calculated from the electronic structure

J. G. Storey, J. L. Tallon, G. V. M. Williams

We have calculated the thermopower of the Bi2Sr2CuO6 and Bi2Sr2CaCu2O8 superconductors using an ARPES-derived dispersion, with a model pseudogap, and a marginal-Fermi liquid scatte…

cond-mat.supr-con2007★ 4 cited

Pressure dependence of the oxygen isotope effect in YBaCuO

N. Suresh, J. G. Storey, G. V. M. Williams +1

We have carried out measurements of the pressure dependence to 1.2 GPa of the oxygen isotope effect on in the high- superconductor YBaCuO using a clamp cell…

cond-mat.supr-con2007★ 15 cited

Thermodynamic properties of Bi2Sr2CaCu2O8 calculated from the electronic dispersion

J. G. Storey, J. L. Tallon, G. V. M. Williams

The electronic dispersion for Bi2Sr2CaCu2O(8+d) has been determined from angle-resolved photoelectron spectroscopy (ARPES). From this dispersion we calculate the entropy and superf…

cond-mat.supr-con2004★ 50 cited

Isotope Effect in the Superfluid Density of HTS Cuprates: Stripes, Pseudogap and Impurities

J. L. Tallon, R. S. Islam, J. Storey +2

Underdoped cuprates exhibit a normal-state pseudogap, and their spins and doped carriers tend to spatially separate into 1- or 2-D stripes. Some view these as central to supercondu…