180 citations · 796 across the 16 of their papers we have counts for
10 papers · 1 filter
Normal-state nodal electronic structure in underdoped high-Tc copper oxides
Suchitra E. Sebastian, N. Harrison, F. F. Balakirev +6
An outstanding problem in the field of high-transition-temperature (high Tc) superconductivity is the identification of the normal state out of which superconductivity emerges in t…
Synthesis and physical properties of the new potassium iron selenide superconductor K0.80Fe1.76Se2
Rongwei Hu, E. D. Mun, D. H. Ryan +13
In this article we review our studies of the K0.80Fe1.76Se2 superconductor, with an attempt to elucidate the crystal growth details and basic physical properties over a wide range…
Upper critical fields and two-band superconductivity in Sr1-xEux(Fe0.89Co0.11)2As2 (x=0.203 and 0.463)
Rongwei Hu, Eun Deok Mun, M. M. Altarawneh +4
The upper critical fields, Hc2 of single crystals of Sr1-xEux(Fe0.89Co0.11)2As2(x=0.203 and 0.463) were determined by radio frequency penetration depth measurements in pulsed magne…
Chemical potential oscillations from a single nodal pocket in the underdoped high-Tc superconductor YBa2Cu3O6+x
Suchitra E. Sebastian, N. Harrison, M. M. Altarawneh +4
The mystery of the normal state in the underdoped cuprates has deepened with the use of newer and complementary experimental probes. While photoemission studies have revealed solel…
Direct observation of multiple spin zeroes in the underdoped high temperature superconductor YBa2Cu3O6+x
Suchitra E. Sebastian, N. Harrison, M. M. Altarawneh +6
We report the direct observation of multiple `spin zeroes' in angle-dependent magnetic quantum oscillations measured up to 85T in YBa2Cu3O6+x, at which the amplitude falls to a dee…
Anisotropic Hc2 of K0.8Fe1.76Se2 determined up to 60 T
E. D. Mun, M. M. Altarawneh, C. H. Mielke +4
The anisotropic upper critical field, Hc2(T), curves for K0.8Fe1.76Se2 are determined over a wide range of temperatures down to 1.5 K and magnetic fields up to 60 T. Anisotropic in…
Compensated electron and hole pockets in an underdoped high Tc superconductor
Suchitra E. Sebastian, N. Harrison, P. A. Goddard +7
We report quantum oscillations in the underdoped high Tc YBCO over a wide range in magnetic field 28<B<85 T corresponding to ~12 oscillations, enabling the Fermi surface topology t…
Fermi liquid behaviour in an underdoped high Tc superconductor
Suchitra E. Sebastian, N. Harrison, M. M. Altarawneh +4
We use magnetic quantum oscillations in the underdoped high Tc superconductor YBa_2Cu_3O_(6+x) (x=0.56) measured over a broad range of temperatures 100 mK<T<18 K to extract the for…
Magnetic quantum oscillations in YBaCuO and YBaCuO in fields of up to 85 T; patching the hole in the roof of the superconducting dome
John Singleton, Clarina de la Cruz, R. D. McDonald +8
We measure magnetic quantum oscillations in the underdoped cuprates YBaCuO with , 0.69, using fields of up to 85 T. The quantum-oscillation frequencies and…
Determination of anisotropic Hc2 up to 60 T in (Ba0.55K0.45)Fe2As2 single crystals
M. Altarawneh, K. Collar, C. H. Mielke +3
The radio frequency penetration depth was measured in the superconductor (BaK)FeAs under pulsed magnetic fields extending to 60 tesla and down to 14 K…