Origins of large critical temperature variations in single layer cuprates (2008)
Palczewski, A. D., Kondo, T., Khasanov, R., Kolesnikov, N. N., Timonina, A. V., Rotenberg, E., ...
We study the electronic structures of two single layer superconducting cuprates, Tl$_2$Ba$_2$CuO$_{6+\delta}$ (Tl2201) and (Bi$_{1.35}$Pb$_{0.85}$)(Sr$_{1.47}$La$_{0.38}$)CuO$_{6+\delta}$ (Bi2201)...
Chatterjee, U., Shi, M., Kaminski, A., Kanigel, A., Fretwell, H. M., Terashima, K., ...
We find that peaks in the autocorrelation of angle resolved photoemission spectroscopy data of Bi$_2$Sr$_2$CaCu$_2$O$_{8+\delta}$ in the superconducting state show dispersive behavior for binding...
Coexistence of superconductivity and incoherence in quasi 1D chains (2006)
Khasanov, R., Kondo, T., Schmalian, J., Kazakov, S. M., Zhigadlo, N. D., Karpinski, J., ...
The dimensionality of a correlated many-body system has a large impact on its electronic properties. When electrons are confined to one-dimensional chains of atoms their behavior is very different...
Kondo, T., Khasanov, R., Karpinski, J., Kazakov, S. M., Zhigadlo, N. D., Ohta, T., ...
We use microprobe Angle-Resolved Photoemission Spectroscopy (muARPES) to separately investigate the electronic properties of CuO2 planes and CuO chains in the high temperature superconductor,...
Chatterjee, U., Morr, D. K., Norman, M. R., Randeria, M., Kanigel, A., Shi, M., ...
We introduce a formalism for calculating dynamic response functions using experimental single particle Green's functions derived from angle resolved photoemission spectroscopy (ARPES). As an...
From Fermi Arcs to the Nodal Metal: Scaling of the Pseudogap with Doping and Temperature (2006)
Kanigel, A., Norman, M. R., Randeria, M., Chatterjee, U., Suoma, S., Kaminski, A., ...
The pseudogap phase in the cuprates is a most unusual state of matter: it is a metal, but its Fermi surface is broken up into disconnected segments known as Fermi arcs. Using angle resolved...
The change of Fermi surface topology in Bi2Sr2CaCu2O8 with doping (2005)
Kaminski, A., Rosenkranz, S., Fretwell, H. M., Norman, M. R., Randeria, M., Campuzano, J. C., ...
We report the observation of a change in Fermi surface topology of Bi2Sr2CaCu2O8 with doping. By collecting high statistics ARPES data from moderately and highly overdoped samples and dividing the...
Chatterjee, U., Shi, M., Kaminski, A., Kanigel, A., Fretwell, H. M., Terashima, K., ...
The autocorrelation of angle resolved photoemission data from the high temperature superconductor Bi2Sr2CaCu2O8+d shows distinct peaks in momentum space which disperse with binding energy in the...
Momentum anisotropy of the scattering rate in cuprate superconductors (2004)
Kaminski, A., Fretwell, H. M., Norman, M. R., Randeria, M., Rosenkranz, S., Chatterjee, U., ...
We examine the momentum and energy dependence of the scattering rate of the high temperature cuprate superconductors using angle resolved photoemission spectroscopy. The scattering rate is of the...
Momentum anisotropy of the scattering rate in cuprate superconductors (2004)
Kaminski, A., Fretwell, H. M., Norman, M. R., Randeria, M., Rosenkranz, S., Campuzano, J. C., ...
We examine the momentum and energy dependence of the scattering rate of the high temperature cuprate superconductors using angle resolved photoemission spectroscopy. The scattering rate is of the...
Identifying the Background Signal in ARPES of High Temperature Superconductors (2003)
Kaminski, A., Rosenkranz, S., Fretwell, H. M., Mesot, J., Randeria, M., Campuzano, J. C., ...
One of the interesting features of the photoemission spectra of the high temperature cuprate superconductors is the presence of a large signal (referred to as the "background'') in the unoccupied...
Kaminski, A., Rosenkranz, S., Fretwell, H. M., Campuzano, J. C., Li, Z. Z., Raffy, H., ...
In a recent comment [1], Armitage and Hu have suggested that our experiment observing dichroism in angle resolved photoemission (ARPES) [2] could not be conclusively interpreted as arising from time...
Kaminski, A., Rosenkranz, S., Fretwell, H. M., Li, Z., Raffy, H., Randeria, M., ...
Angle resolved photoemission spectroscopy (ARPES) and resistivity measurements are used to explore the overdoped region of the high temperature superconductor Bi2Sr2CaCu2O8+delta. We find evidence...
Spontaneous time reversal symmetry breaking in the pseudogap state of high-Tc superconductors (2002)
Kaminski, A., Rosenkranz, S., Fretwell, H. M., Campuzano, J. C., Li, Z., Raffy, H., ...
When matter undergoes a phase transition from one state to another, usually a change in symmetry is observed, as some of the symmetries exhibited are said to be spontaneously broken. The...
Magnetic Resonance, Electronic spectra and Bilayer Splitting in Underdoped Bi2212 (2001)
Mesot, J., Boehm, M., Norman, M. R., Randeria, M., Metoki, N., Kaminski, A., ...
We report the first inelastic neutron scattering (INS) experiments of the resonance in the underdoped regime of Bi2Sr2CaCu2O8+d. The energy of the resonance is found to be 34 meV and the temperature...
Dlubek, G., Fretwell, H.M., Meyendorf, N.
Positron/positronium annihilation spectroscopy is a unique tool to probe free-volume holes which apear in amourphous polymers due to the irregular molecular packing. The positron lifetime...
Mesot, J., Randeria, M., Norman, M. R., Kaminski, A., Fretwell, H. M., Campuzano, J. C., ...
We study the normal state electronic excitations probed by angle resolved photoemission spectroscopy (ARPES) in Bi2201 and Bi2212. Our main goal is to establish explicit criteria for determining the...
The Fermi surface of Bi2Sr2CaCu2O8 (1999)
Fretwell, H. M., Kaminski, A., Mesot, J., Campuzano, J. C., Norman, M. R., Randeria, M., ...
We study the Fermi surface of Bi2Sr2CaCu2O8 (Bi2212) using angle resolved photoemission (ARPES) with a momentum resolution of ~ 0.01 of the Brillouin zone. We show that, contrary to recent...
Campuzano, J. C., Ding, H., Norman, M. R., Fretwell, H. M., Randeria, M., Kaminski, A., ...
Photoemission spectra of Bi2Sr2CaCu2O8 reveal that the high energy feature near (pi,0), the "hump", scales with the superconducting gap and persists above Tc in the pseudogap phase. As the doping...
Superconducting Gap Anisotropy and Quasiparticle Interactions: a Doping Dependent ARPES Study (1998)
Mesot, J., Norman, M. R., Ding, H., Randeria, M., Campuzano, J. C., Paramekanti, A., ...
Comparing ARPES measurements on Bi2212 with penetration depth data, we show that a description of the nodal excitations of the d-wave superconducting state in terms of non-interacting quasiparticles...
Fermi Surface as the Driving Mechanism for Helical Antiferromagnetic Ordering in Gd-Y Alloys (1998)
Fretwell, H. M., Dugdale, S. B., Alam, M. A., Hedley, D. C. R., Rodriguez-Gonzalez, A., Palmer, S. B.
The first direct experimental evidence for the Fermi surface (FS) driving the helical antiferromagnetic ordering in a gadolinium-yttrium alloy is reported. The presence of a FS sheet capable of...
Positron annihilation studies of electronic and defect structures in metallic systems. (1993)
Thesis (Ph. D.)--University of Bristol, 1993.