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Professor William Thomas Coffey

Fellow Emeritus (Electronic & Elect. Engineering)
SNIAM

 William.Coffey@tcd.ie

 3531896 1433


Research Tags

  3 DIMENSIONS   ABSORPTION-SPECTRA   AC   ANISOTROPY   ANTI-GRAVITY   AXIALLY SYMMETRIC POTENTIAL   B CYCLIC THEOREM   B((3))   B-(3) FIELDS   BARRIER   BARUT FIELD VECTOR   BIREFRINGENCE   BROWNIAN MOTION   BROWNIAN-MOTION   CHARGE CONJUGATION SYMMETRY   CLASSICAL ELECTRODYNAMICS   COMPLEX   COMPLEX SUSCEPTIBILITY   DEBYE   DEBYE THEORY   DERIVATION   DIELECTRIC-RELAXATION   DIPOLAR MOLECULES   DOMAIN FERROMAGNETIC PARTICLE   DOMAIN FERROMAGNETIC PARTICLES   DYNAMICS   EINSTEIN GROUP   ELECTROMAGNETIC ENERGY FROM CURVED SPACETIME   ELECTROMAGNETISM   ELECTROWEAK THEORY   ENERGY DIFFUSION METHOD   ENERGY EX VACUO   ENERGY FROM THE VACUUM   EXTRACTING ENERGY   FAR-INFRARED ABSORPTION   FERRITIN   FERROMAGNETIC PARTICLES   FIELD   FORMULA   GAUGE THEORY   GAUGE THEORY OF ELECTRODYNAMICS   GUTS   INCONSISTENCIES OF U(1) GAUGE FIELD THEORY   INTERFEROMETRY   INVERSION   KERR EFFECT RELAXATION   KRAMERS   KRAMERS ESCAPE RATE   KRAMERS ESCAPE RATE FOR NON-AXIALLY SYMMETRIC POTENTIALS   KRAMERS PROBLEM   LANGEVIN EQUATION   LASER   LEHNERT EQUATIONS   LEHNERT VACUUM CHARGE CURRENTS   LEP 1 DATA   LIQUID-CRYSTALS   LIQUIDS   LONGITUDINAL MAGNETIC-FIELD   LORENTZ TRANSFORMATION   MAGNETIC FLUIDS   MAGNETIC PARTICLES   MAGNETIZATION   MAGNETOSTOCHASTIC RESONANCE   MAXWELL EQUATIONS   MAXWELL HEAVISIDE EQUATIONS   MICHELSON INTERFEROMETRY   MOLECULES   MOTIONLESS ELECTROMAGNETIC GENERATOR   NEEL RELAXATION   NOISE-INDUCED RESONANCE   PARTICLE   PARTICLES   PHASE   PHOTON   PHYSICAL VACUUM   POLAR FLUIDS   QUANTUM NOISE   RELAXATION-TIME   SACHS'S ELECTRODYNAMICS   SIGNALS   SINGLE   SINGLE-DOMAIN PARTICLES   STATIC MAGNETIC-FIELD   STOCHASTIC RESONANCE   STRESS ENERGY-MOMENTUM TENSOR   SUPERPARAMAGNETIC RELAXATION-TIME   SUPERPARAMAGNETISM   SURFACE IMPEDANCE   SUSCEPTIBILITY   SYSTEMS   THERMAL RELAXATION   TIME   UNIAXIAL ANISOTROPY   WEAK LINKS

Representations

Details Date
Member, Editorial Board, Advances in Chemical Physics, Wiley Interscience, New York. Editors S.A.Rice (recipient of the Congressional Medal of Honor from President Clinton) and I. Prigogin (Nobel Laureate). It is a particular honour to be invited to be a member of the editorial board of this famous publication, two members of the 20 member board are Nobel Laureates, one is a Fellow of The Royal Society and several have received the most prestigious prizes of the American Physical Society 1993

Memberships

Membership of Professional Institutions, Associations, Societies

Details Date From Date To
Member American Physical Society 1996 Present
William T. Coffey, Yuri P. Kalmykov and Sergei V. Titov, Thermal Fluctuations and Relaxation Processes in Nanomagnets, Singapore, World Scientific, 2020, 1 - 684pp, Book, PUBLISHED  DOI
Y.P. Kalmykov, S.V. Titov, D.J. Byrne, W.T. Coffey, M. Zarifakis, and M.H. Al Bayyari, Dipole-dipole and exchange interaction effects on the magnetization relaxation of two macrospins: compared, Journal of Magnetism and Magnetic Materials, 507, 2020, p166814-1 - 166814-8, Journal Article, PUBLISHED  DOI
M. Zarifakis, D.J. Byrne, W.T. Coffey, Y.P. Kalmykov, S.V. Titov, and S.J. Carrig, Comparison of coupled nonlinear oscillator models for the transient response of power generating stations connected to low inertia systems, IEEE Transactions on Power Systems, 35, (1), 2020, p795 - 802, Journal Article, PUBLISHED  DOI
Y. P. Kalmykov, S. V. Titov, W. T. Coffey, M. Zarifakis, W. J. Dowling and A. S. Titov, Anomalous diffusion of a dipole interacting with its surroundings, Journal of Chemical Physics, 152, (11), 2020, p114101-1 - 114101-11, Journal Article, PUBLISHED  DOI
S. V. Titov, W. T. Coffey, M. Zarifakis, Y. P. Kalmykov, M. H. Al Bayyari and W. J. Dowling, Generalization to anomalous diffusion of Budó's treatment of polar molecules containing interacting rotating groups, Journal of Chemical Physics, 153, 2020, p044128-1 - 044128-8, Journal Article, PUBLISHED  DOI
S. V. Titov, W. T. Coffey, W. J. Dowling, M. Zarifakis, Y. P. Kalmykov, and A. S. Titov, Anomalous diffusion of molecules with rotating polar groups: The joint role played by inertia and dipole coupling in microwave and far-infrared absorption, Physical Review E, 102, (5), 2020, p052130-1 - 052130-11, Journal Article, PUBLISHED  DOI
D. Byrne, W. T. Coffey, Y. P. Kalmykov, and S. V. Titov, On a simple derivation of the very low damping escape rate for classical spins by modifying the method of Kramers, Physica A: Statistical Mechanics and its Applications, 527, 2019, p121195-1 - 121195-9, Journal Article, PUBLISHED  DOI
Y. P. Kalmykov, S. V. Titov, W. T. Coffey, M. Zarifakis, and W. J. Dowling, Forced response and dynamic hysteresis of magnetic nanoparticles with mixed uniaxial and cubic anisotropy in superimposed strong ac and dc bias fields, Physical Review B, 99, (18), 2019, p184414-1 - 184414-13, Journal Article, PUBLISHED  DOI
Y. P. Kalmykov, S. V. Titov, W. T. Coffey, and M. Zarifakis, Langevin equation for the dipole vector of an accidental symmetric top molecule, Journal of Molecular Liquids, 289, 2019, p111123-1 - 111123-5, Journal Article, PUBLISHED  DOI
Marios Zarifakis, William T. Coffey, Yuri P. Kalmykov, Serguey V. Titov, Declan J. Byrne and Stephen J. Carrig, Active Damping of Power Oscillations Following Frequency Changes in Low Inertia Power Systems, IEEE Transactions on Power Systems, 34, (6), 2019, p4984 - 4992, Journal Article, PUBLISHED  TARA - Full Text  DOI  URL
  

Page 1 of 27
W. T. Coffey, W. J. Dowling, Yu. P. Kalmykov, and S. V. Titov , On the Kramers very low damping escape rate for point particles and classical spins, DPG Spring Meeting, Dresden, March 30 - April 4, 2014, Conference Paper, PUBLISHED
Yu. P. Kalmykov, W. T. Coffey, and N. Wei, On the nonlinear response of non-interacting electric dipoles and single domain ferrofluid particles subjected to strong alternating dc bias fields, DPG Spring Meeting, Dresden, March 30 - April 4, 2014, Conference Paper, PUBLISHED
D. J. Byrne, W. T. Coffey, Yu. P. Kalmykov, and S. V. Titov , Linear and nonlinear stationary ac response of the magnetisation of nano magnets in the presence of thermal agitation and spin-transfer torques, DPG Spring Meeting, Dresden, March 30 - April 4, 2014, Conference Paper, PUBLISHED
D. J. Byrne, W. T. Coffey, W. J. Dowling, Yu. P. Kalmykov, and S. V. Titov , On the Kramers escape rate for point particles and classical spins, COST Action MP1006 Quantum and Classical Complexity: From Atoms to Biosystems, Frankfurt, 5-7 May, 2014, Conference Paper, PUBLISHED
W. T. Coffey, Yu. P. Kalmykov , S. V. Titov L. Cleary, and W. J. Dowling, "Quantum master equation in phase space applied to the Brownian motion in a tilted periodic potential, Annual German Physical Society Spring Meeting, Dresden, 13-17 March 2011, 2011, Conference Paper, PRESENTED
W. T. Coffey, L. Cleary, W. Dowling, Yu. P. Kalmykov, and S. V. Titov, Phase space master equations for quantum Brownian motion in a periodic potential: comparison of various kinetic models, Madrid Workshop on Open Quantum Systems, Madrid, Spain, 3-5 October 2011, 2011, Conference Paper, PRESENTED
W. T. Coffey, Preface, J.Mol.Liquids, 114, 2004, p1 - 3, Journal Article, PUBLISHED

  

Awards and Honours

Award Date
Docteur Honoris causa, University of Perpignan Academie de Montpellier (These are awarded to approximately 6 candidates 3 in the Arts and 3 in the Sciences every 4 years) 2000
FELLOW of the Institution of Electrical Engineers 1996
FELLOW of the Institute of Physics 1996
Distinguished Visitor Fellow QUB (Dynamics of superparamagnetic nano particles) 2002-2005
Berkeley Fellow University of Dublin 2001-2002
Member of the Royal Irish Academy 2001
Fellow American Physical Society 1999