Ben Powell's publications

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BEN POWELL

[There should be a photo of me here.]

Image taken from B.J. Powell and R.H. McKenzie, Phys. Rev. Lett. 98, 027005 (2007). Click on the image to read full text.

About Research YouTube Publications Teaching

2009 | 2008 | 2007 | 2006 | 2005 | 2004 | 2003 | 2002 | proceedings

Preprints
Competition between Superconductivity and Weak Localization in Metal-Mixed Ion-Implanted Polymers. A. P. Stephenson, A. P. Micolich, U. Divakar, P. Meredith and B. J. Powell arXiv:0910.4445
An introduction to effective low-energy Hamiltonians in condensed matter physics and chemistry. B. J. Powell arXiv:0906.1640
Towards molecular energy calculations on a quantum computer. B. P. Lanyon, J. D. Whitfield, G. G. Gillet, M. E. Goggin, M. P. Almeida, I. Kassal, J. D. Biamonte, M. Mohseni, B. J. Powell, M. Barbieri, A. Aspuru-Guzik, A. G. White arXiv:0905.0887
Electron-phonon coupling as an order-one problem. B.J. Powell, M.R. Pederson and T. Baruah cond-mat/0510205

2009
Gaseous Adsorption in Melanins: Hydrophilic Biomacromolecules with High Electrical Conductivities. A. B. Mostert, K. J. P. Davy, J. L. Ruggles, B. J. Powell, I. R. Gentle, and P. Meredith Langmuir, Article ASAP.
Effective Coulomb interactions within BEDT-TTF dimers. E. Scriven and B. J. Powell Phys. Rev. B 80, 205107 (2009).
Ionic Hubbard model on a triangular lattice for Na_0.5CoO₂, Rb_0.5CoO₂ and K_0.5CoO₂: Mean-field slave boson theory. B. J. Powell, J. Merino, and R. H. McKenzie Phys. Rev. B 80, 085113 (2009).
Spin Fluctuations and the Pseudogap in Organic Superconductors. B. J. Powell, E. Yusuf, and R. H. McKenzie Phys. Rev. B 80, 054505 (2009).
Electronic and magnetic properties of the ionic Hubbard model on the striped triangular lattice at 3/4 filling. J. Merino, R. H. McKenzie, and B. J. Powell Phys. Rev. B 80, 045116 (2009).
Synthetic routes to new physics. B. J. Powell Chem. Aust., 76, 18 (2009). Invited feature article.
A unified explanation of the Kadowaki-Woods ratio in strongly correlated metals. A. C. Jacko, J. O. Fjaerestad, and B. J. Powell Nature Phys. 5, 422 (2009). Also see discussion of this paper in condensed concepts (blog)
Preparation of Metal Mixed Plastic Superconductors: Electrical Properties of Tin-Antimony Thin Films on Plastic Substrates. A.P. Stephenson, U. Divakar, A.P. Micolich, P. Meredith, and B. J. Powell J. Appl. Phys. 105, 093909 (2009).
Interplay of frustration, magnetism, charge ordering, and covalency in a model of Na_0.5CoO₂. J. Merino, B. J. Powell, and R. H. McKenzie Phys. Rev. B 79, 161103(R) (2009).
Vertex Corrections and the Korringa Ratio in Strongly Correlated Electron Materials. E. Yusuf, B. J. Powell, and R. H. McKenzie J. Phys.: Condens. Matter 21, 195601 (2009).
Toward the parametrization of the Hubbard model for salts of bis(ethylenedithio)tetrathiafulvalene: A density functional study of isolated molecules. E. Scriven and B. J. Powell J. Chem. Phys. 130, 104508 (2009). Also see discussion of this paper in condensed concepts (blog)

2008
A phenomenological model of the superconducting state of the Bechgaard salts. B.J. Powell J. Phys.: Condens. Matter 20, 345234 (2008).
Pomeranchuk instability: symmetry breaking and experimental signatures. J. Quintanilla, C. Hooley, B. J. Powell, A. J. Schofield and M. Haque Physica B 403, 1279 (2008).

2007
Transition dipole strength of eumelanin. J.J. Riesz, J.B. Gilmore, R.H. McKenzie, B.J. Powell, M.R. Pederson, and P. Meredith Phys. Rev. E 76, 021915 (2007)
Antiferromagnetic Spin Fluctuations in the Metallic Phase of Quasi-Two-Dimensional Organic Superconductors. E. Yusuf, B.J. Powell and R.H. McKenzie Phys. Rev. B 75, 214515 (2007)
Convergent Proton Transfer Photocycles Violate Mirror Image Symmetry in a Key Melanin Monomer. S. Olsen, J. Riesz, I. Mahadevan, A. Coutts, J. Bothma, B.J. Powell, R. H. McKenzie, S.C. Smith and P. Meredith J. Am. Chem. Soc., 129, 6672, (2007)
Symmetry of the Superconducting Order Parameter in Frustrated Systems Determined by the Spatial Anisotropy of Spin Correlations. B.J. Powell and R.H. McKenzie Phys. Rev. Lett. 98, 027005 (2007)

2006
Mixed order parameters, accidental nodes and broken time reversal symmetry in organic superconductors: a group theoretical analysis. B.J. Powell J. Phys.: Condens. Matter 18, L575 (2006)
Strong electronic correlations in superconducting organic charge transfer salts. B.J. Powell and R.H. McKenzie J. Phys.: Condens. Matter 18, R827 (2006) This paper was selected by Marshall Stoneham and David Ferry, the Editors-in-Chief of J. Phys.: Condens. Matter, for their TOP PAPERS 2006 SHOWCASE
Superconductivity in Metal-mixed Ion-Implanted Polymer Films. A.P. Micolich, E. Tavenner, B.J. Powell, A.R. Hamilton, M.T. Curry, R.E. Giedd and P. Meredith Appl. Phys. Lett. 89, 152503 (2006)
Ferromagnetism, paramagnetism and a Curie-Weiss metal in an electron doped Hubbard model on a triangular lattice. J. Merino, B.J. Powell and R.H. McKenzie Phys. Rev. B 73, 235107 (2006)
The effect of irradiation-induced disorder on the conductivity and critical temperature of the organic superconductor κ-(BEDT-TTF)₂Cu(SCN)₂. J.G. Analytis, A. Ardavan, S.J. Blundell, R.L. Owen, E.F. Garman, C. Jeynes and B.J. Powell Phys. Rev. Lett. 96, 177002 (2006)
Towards Structure-Property-Function Relationships for Eumelanin. P. Meredith, B.J. Powell, J. Riesz, S. Nighswander-Rempel, M.R. Pederson and E. Moore Soft Matter 2, 37 (2006)
Chemical and Structural Disorder in Eumelanins - A Possible Explanation for Broad Band Absorbance. M.L. Tran, B.J. Powell and P. Meredith Biophys. J. 90, 743 (2006)

2005
Half-Filled Layered Organic Superconductors and the Resonating-Valence-Bond Theory of the Hubbard-Heisenberg Model. B.J. Powell and R.H. McKenzie Phys. Rev. Lett. 94, 047004 (2005)
5,6-dihydroxyindole-2-carboxylic acid (DHICA): a First Principles Density-Functional Study. B.J. Powell Chem. Phys. Lett. 402, 111 (2005)
Broad Band Photon Harvesting Biomolecules for Photovoltaics. P. Meredith, B.J. Powell, J. Riesz, R. Vogel, D. Blake, I. Kartini, G. Will and S. Subianto In Artificial Photosynthesis: From Basic Biology to Industrial Application (Wiley, Chichester, 2005) C. Critchley and A. Collings (Eds.)

2004
A First Principles Density-Functional Calculation of the Electronic and Vibrational Structure of the Key Melanin Monomers. B.J. Powell, T. Baruah, N. Bernstein, K. Brake, R.H. McKenzie, P. Meredith and M.R. Pederson J. Chem. Phys. 120, 8608 (2004)
On the Relationship Between the Critical Temperature and the London Penetration Depth in Layered Organic Superconductors. B.J. Powell and R.H. McKenzie J. Phys.: Condens. Matter 16 L367-L373 (2004)
First-principles density-functional calculation of the Raman spectra of BEDT-TTF. K. Brake, B.J. Powell, R.H. McKenzie, M.R. Pederson and T. Baruah J. Phys. IV (France) 114, 293 (2004)
The origin of the difference of the superconducting critical temperatures of the β_H and β_L phases of β-(BEDT-TTF)₂I₃. B.J. Powell J. Phys. IV (France) 114, 363 (2004)
Dependence of the Superconducting Transition Temperature of Organic Molecular Crystals on Intrinsically Non-Magnetic Disorder: a Signature of either Unconventional Superconductivity or Atypical Local Magnetic Moment Formation. B.J. Powell and R.H. McKenzie Phys. Rev. B 69, 024519 (2004)

2003
The gap equations for spin singlet and triplet ferromagnetic superconductors. B.J. Powell, J.F. Annett and B.L. Györffy J. Phys. A 36, 9289 (2003)
Competition Between Disorder and Exchange Splitting in Superconducting ZrZn₂. B.J. Powell, J.F. Annett and B.L. Györffy J. Phys.: Condens. Matter 15, L235 (2003)

2002
The Behaviour of a Triplet Superconductor in a Spin Only Magnetic Field. B.J. Powell, J.F. Annett and B.L. Györffy In Ruthenate and Rutheno-Cuprate Materials: Unconventional Superconductivity, Magnetism and Quantum Phase Transitions Springer Lecture Notes in Physics. 603 C. Noce, A. Vecchione, M. Cuoco, A. Romano (Eds.) (Springer, Berlin, 2002).

Conference proceedings
The Melanins - A Class of Bio-organic Conductor. P. Meredith, J. Riesz, C. Giacomantonio, S. Subianto, G. Will, A. Micolich and B.J. Powell The Proceedings of the International Conference on Science and Technology of Synthetic Metals (ICSM 2004), (University of Wollongong Intelligent Polymer Research Institute, Wollongong, 2004).

Condensed Mater Physics | COPE | Physics Department | SPS | EPSA | University of Queensland