Browsing Electronic & Electrical Eng (Scholarly Publications) by Author "COFFEY, WILLIAM"
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Inertial and bias effects in the rotational brownian motion of rodlike molecules in a uniaxial potential.
COFFEY, WILLIAM (2011)Inertial effects in the rotational Brownian motion in space of a rigid dipolar rotator (needle) in a uniaxial potential biased by an external field giving rise to asymmetry are treated via the infinite hierarchy of ... -
Quantum effects in the Brownian motion of a particle in a double well potential in the overdamped limit.
CLEARY, LIAM; COFFEY, WILLIAM (2009)Quantum effects in the noninertial Brownian motion of a particle in a double well potential are treated via a semiclassical Smoluchowski equation for the time evolution of the reduced Wigner distribution function in ... -
Spin-torque effects in thermally assisted magnetisation reversal: Method of statistical moments
COFFEY, WILLIAM (2013)Thermal fluctuations of nanomagnets driven by spin-polarized currents are treated via the Landau-Lifshitz-Gilbert equation generalized to include both the random thermal noise field and the Slonczewski spin-transfer torque ... -
Thermal fluctuations of magnetic nanoparticles: fifty years after Brown
COFFEY, WILLIAM (2012)The reversal time, superparamagnetic relaxation time, of the magnetization of fine single domain ferromagnetic nanoparticles owing to thermal fluctuations plays a fundamental role in information storage, paleomagnetism, ...