J. G. Barker

Range of magnetic correlations in nanocrystalline soft magnets (2003)

Viswanath, R N, Barker, J G, Birringer, R, Weissmüller, J

We have obtained the magnetic field dependence of static ferromagnetic correlations in nanocrystalline electrodeposited Co and Ni by means of the correlation function of the spin misalignment,...

Domain formation and long-range spin disorder in Vitroperm. (2003)

Michels, A., Weissmüller, J., Viswanath, R.N., Barker, J.G., Hilzinger, R.

Frühjahrstagung des Arbeitskreises Festkörperphysik (AKF) der DPG, Fachverband Magnetismus (MA), Dresden, 24.-28. März 2003

An approximate lower bound for the volume-average mean-square magnetostatic field combining micromagnetics and small-angle neutron scattering. (2003)

Michels, A., Weissmüller, J., Barker, J.G., Birringer, R.

Internat.Symp.on Magnetism, Moskva, Russia, June 20-24, 2002

Range of magnetic correlations in nanocrystalline soft magnets. (2003)

Michels, A., Viswanath, R.N., Barker, J.G., Birringer, R., Weissmüller, J.

European Conf.on Neutron Scattering, Montpellier, F, September 3-6, 2003

Measurement of a magnetic-field dependent correlation length in nanocrystalline Ni using small-angle neutron scattering. (2002)

Michels, A., Weissmüller, J., Erb, U., Barker, J.G.

Physica Status Solidi (a), 189(2002) S.509-13

Analyse der Neutronenkleinwinkelstreuung nanokristalliner Ferromagnete mittels eines mikromagnetischen Modells. (2001)

Michels, A., Weissmüller, J., Wiedenmann, A., Erb, U., Barker, J.G.

65.Physikertagung gemeinsam mit der Frühjahrstagung des Arbeitskreises Festkörperphysik der DPG, Hamburg, 26.-30. März 2001

Exchange-stiffness constant in cold-worked and nanocrystalline Ni measured by elastic small-angle neutron scattering. (2001)

Michels, A., Weissmüller, J., Wiedenmann, A., Barker, J.G.

Journal of Applied Physics, 87(2000) S.5953-55

Measuring the exchange-stiffness constant of nanocrystalline solids by elastic small-angle neutron scattering. (2001)

Michels, A., Weissmüller, J., Wiedenmann, A., Pedersen, J.S., Barker, J.G.

Philosophical Magazine Letters, 80(2000) S.785-92

Analysis of the small-angle neutron scattering of nanocrystalline ferromagnets using a micromagnetic model. (2001)

Weissmüller, J., Michels, A., Barker, J.G., Wiedenmann, A., Erb, U., Shull, R.D.

Physical Review B, 63(2001) S.4414/1-18

A DOUBLE-BLEND CONTROLLED STUDY OF THE EFFECTS ON RESPIRATION OF PENTAZOCINE, PHENOPERIDINE AND MORPHINE IN NORMAL MAN (1968)

JENNETT, SHEILA, BARKER, J. G., FORREST, J. B.

Three drugs and saline were given intravenously, on separate occasions, to eight normal subjects. The doses used were pentazocine 20 mg, phenoperidine 1.5 mg and morphine sulphate 10 mg, each per 70...