C.D.H. Williams publications by authors

Spatial evolution of pulses of low-energy phonons in liquid ⁴He
I.N. Adamenkoa, K.E. Nemchenkoa, V.A. Slipko, R.V. Vovk, C.D.H. Williams and A.F.G. Wyatt
J. Molec. Liq. 120 (1-3) 163-165 (2005).
doi:10.1016/j.molliq.2004.07.061 

Expansion of Liquid ⁴He Through the Lambda Transition
M.E. Dodd, P.C. Hendry, N.S. Lawson, P.V.E. McClintock and C.D.H. Williams
J. Low Temp. Physics 115(1-2) 89-105 (1999).
Abstract  PDF  doi:10.1023/A:1021898914014 

Non-Appearance of Vortices in Fast Mechanical Expansions of Liquid ⁴He Through the Lambda Transition
M.E. Dodd, P.C. Hendry, N.S. Lawson, P.V.E. McClintock and C.D.H. Williams
Phys. Rev. Lett. 81 3703-3706 (1998).
Abstract  PDF  doi:10.1103/PhysRevLett.81.3703 

Cosmological Experiments in Liquid ⁴He - Status and Prospects
P.C. Hendry, N.S. Lawson, R.A.M. Lee, P.V.E. McClintock and C.D.H. Williams
Physica B 210(3-4) 209-214 (1995).
Abstract 

Creation of Quantized Vortices at the Lambda Transition in Liquid Helium-4
P.C. Hendry, N.S. Lawson, R.A.M. Lee, P.V.E. McClintock and C.D.H. Williams
J. Low Temp. Physics 93(5-6) 1059-67 (1993).
Abstract 

Generation of Defects In Superfluid ⁴He as an Analog of the Formation of Cosmic Strings
P.C. Hendry, N.S. Lawson, R.A.M. Lee, P.V.E. McClintock and C.D.H. Williams
Nature 368(6469) 315-7 (1994).
Abstract  doi:10.1038/368315a0 

Vortex Creation in a Fast Adiabatic Expansion through the Lambda Transition
P.C. Hendry, N.S. Lawson, R.A.M. Lee, P.V.E. McClintock and C.D.H. Williams
Physica B 194-196(Pt1) 711-12 (1994).
Abstract 

Macroscopic Quantum Tunnelling of Vortices in HeII
P.C. Hendry, N.S. Lawson, P.V.E. McClintock, C.D.H. Williams and R.M. Bowley
Phys. Rev. Lett. 60 604-7 (1988).
doi:10.1103/PhysRevLett.60.604 

Pressure Dependence of Vortex Tunnelling in HeII
P.C. Hendry, N.S. Lawson, P.V.E. McClintock, C.D.H. Williams and R.M. Bowley
Physica B 165&166(I) 757-8 (1990).
doi:10.1016/0921-4526(90)90770-U 

The Breakdown of Superfluidity in Liquid ⁴He. VI. Macroscopic Quantum Tunnelling by Vortices in Isotopically Pure HeII
P.C. Hendry, N.S. Lawson, P.V.E. McClintock, C.D.H. Williams and R.M. Bowley
Phil. Trans. R. Soc. Lond. A332 387-414 (1990).

Inhibition of Vortex Nucleation by Phonons in HeII
P.C. Hendry, N.S. Lawson, C.D.H. Williams and P.V.E. McClintock
Elementary Excitations in Quantum Fluids, eds K. Ohbayashi and M. Watabe (1988).

Evidence for an Energy Barrier Impeding the Creation of Quantized Vortices in HeII
P.C. Hendry, N.S. Lawson, C.D.H. Williams, P.V.E. McClintock and R.M. Bowley
Jap. J. Appl. Physics S26-3 73-4 (1987).

Nature of Exotic Negative Carriers in Superfluid ⁴He
P.C. Hendry, C.D.H. Williams and P.V.E. McClintock
Phys. Rev. Lett. 61 865 (1988).
doi:10.1103/PhysRevLett.60.865 

A low-temperature high-sensitivity torsion balance magnetometer with in situ stator adjustment
A.J. Matthews, A. Usher and C.D.H. Williams
Rev. Sci. Instrum. 75(8) 2672-2677 (2004).
Abstract  PDF  doi:10.1063/1.1771494 

Energy from Colliding Phonon Sheets in Liquid ⁴He
D.H.S. Smith, R.V. Vovk, C.D.H. Williams and A.F.G. Wyatt
New J. Phys. In press (2007).

Interactions between phonon sheets in superfluid helium
D.H.S. Smith, R.V. Vovk, C.D.H. Williams and A.F.G. Wyatt
New J. Phys. 8 art. 128 (2006)
doi:10.1088/1367-2630/8/8/128 

Pressure dependence of phonon interactions in liquid ⁴He
D.H.S. Smith, R.V. Vovk, C.D.H. Williams and A.F.G. Wyatt
Phys. Rev B. B72(5) art. 054506 (2005).
PDF  doi:10.1103/PhysRevB.72.054506 

Roton backflow and quasiparticle scattering at He-4 surfaces
M.B. Sobnack, J.R. Matthias, J.C.H. Fung, C.D.H. Williams, J.C. Inkson
Physical Review B 65(18) art. 184521 (2002).
Abstract  doi:10.1103/PhysRevB.65.184521 

The temperature dependence of permittivity in MgO and Fe-MgO single crystals
J.S. Thorp, N.E. Rad, D. Evans and C.D.H. Williams
J. Mater. Sci. 21 3091-3096 (1986).

High-Energy Phonon Pulses in Liquid ⁴He
R.V. Vovk, C.D.H. Williams and A.F.G. Wyatt
Phys. Rev B. 69 art. 144524 (2004).
PDF  doi:10.1103/PhysRevB.69.144524 

Interactions between Sheets of Phonons in Liquid ⁴He
R.V. Vovk, C.D.H. Williams and A.F.G. Wyatt
Phys. Rev Lett. 91(23) art. 235302 (2003).
PDF  doi:10.1103/PhysRevLett.91.235302 

The Angular Distribution of a Pulse of Low Energy Phonons in Liquid ⁴He
R.V. Vovk, C.D.H. Williams and A.F.G. Wyatt
Phys. Rev B. 68(13) art. no. 134508 (2003)
PDF  doi:10.1103/PhysRevB.68.134508 

Monolayers of ³He on the Surface of Bulk Superfluid ⁴He
J.P. Warren and C.D.H. Williams
Physica B 284 158-9 (2000).
Abstract  PDF  doi:10.1016/S0921-4526(99)02224-3 

Relative Evaporation Probabilities of ³He and ⁴He from the Surface of Superfluid ⁴He
J.P. Warren and C.D.H. Williams
Physica B 284 160-1 (2000).
Abstract  PDF  doi:10.1016/S0921-4526(99)02250-4 

An Appraisal of the Noise Performance of Constant Temperature Bolometric Detector Systems
C.D.H. Williams
Meas. Sci. Technol. 1 322-328 (1990).
doi:10.1088/0957-0233/1/4/002 

Optimisation and Noise Performance of Constant Temperature Bolometric Phonon Detectors
C.D.H. Williams
Phonons '89, eds S. Hunklinger, W. Ludwig and G. Weiss II 1451-3 (1990).

Quantum Evaporation from Superfluid ⁴He
C.D.H. Williams
J. Low Temp. Physics 113(1-2) 11-18 (1998).
Abstract  PDF  doi:10.1023/A:1022576619646 

The Wave-Vector Dependence of Quantum Evaporation from Superfluid ⁴He
C.D.H. Williams
J. Low Temp. Physics 113(3-4) 627-632 (1998).
Abstract  PDF  doi:10.1023/A:1022505724035 

Numerical Calculation of Magnetometric Demagnetisation Factors for Octahedra and Other Shapes
C.D.H. Williams, D. Evans and J.S. Thorp
J. Magn. Magn. Mater. 79 183-8 (1989).

Size Dependent Magnetometric Demagnetisation Tensors For Single Domain Particles
C.D.H. Williams, D. Evans and J.S. Thorp
J. Magn. Magn. Mater. 72 123-8 (1988).

Production of 'Fast' and 'Exotic' Negative Ions in HeII
C.D.H. Williams, P.C. Hendry and P.V.E. McClintock
Jap. J. Appl. Physics S26-3 105-6 (1987).

Effect of superparamagnetism on measurements made with a Gouy Magnetometer
C.D.H. Williams, S.R. Hoon and J.S. Thorp
J. Mater. Sci. Lett. 5 832-834 (1986).

Excitation Emission From Ions Moving at Supercritical Velocities in HeII
C.D.H. Williams, P.V.E. McClintock and P.C. Hendry
Elementary Excitations in Quantum Fluids, eds K. Ohbayashi and M. Watabe (1988).

Influence of Backflow on Roton Quantum Evaporation
C.D.H. Williams and M.B. Sobnack
J. Low Temp. Physics 126 (1-2) 603-608 (2002).
Abstract  PDF  doi:10.1023/A:1013731604699 

A Slab of Liquid Helium-4 with Two Free Surfaces
C.D.H. Williams and A.F.G. Wyatt
J. Low Temp. Physics 134(1-2) 217-226 (2004).
Abstract  PDF  doi:10.1023/B:JOLT.0000012559.10544.ec 

Quantum Transmission of Atoms Through a Slab of Superfluid Helium
C.D.H. Williams and A.F.G. Wyatt
Phys. Rev. Lett. 91(8) art. 085301 (2003).
Abstract  PDF  doi:10.1103/PhysRevLett.91.085301 

Surface Oxide Layers and the Wetting Temperature of Alkali-Metals
C.D.H. Williams and A.F.G. Wyatt
Czech. J. Physics 46(S1) 457-458 (1996).
Abstract 

The Influence of Electrostatic Fields on Films of Liquid Helium
C.D.H. Williams and A.F.G. Wyatt
J. Low Temp. Physics 102(1-2) 11-19 (1996).
Abstract  PDF 

Transmission of Helium Atoms Through a Helium-II Slab
C.D.H. Williams and A.F.G. Wyatt
Physica B: Physics of Condensed Matter 329-333 262 (2003).
Abstract  PDF  doi:10.1016/S0921-4526(02)01989-0 

Narrow-Angle Beams of Strongly Interacting Phonons
C.D.H. Williams, A.A. Zakharenko and A.F.G. Wyatt
J. Low Temp. Physics 126 (1-2) 591-596 (2002).
Abstract  PDF  doi:10.1023/A:1013727403790