T. Fennell

Publication List Details

Period

2001 - 2009

Number

20

Co-Authors

The consequence of excess configurational entropy on fragility: the case of a polymer/oligomer blend (2009)

Dalle-Ferrier, C., Simon, S., Zheng, W., Badrinarayanan, P., Fennell, T., Frick, B., ...

By taking advantage of the molecular weight dependence of the glass transition of polymers and their ability to form perfectly miscible blends, we propose a way to modify the fragility of a system,...

Low temperature magnetic structure of the quasi 1-dimensional magnet Ni2SiO4 (2009)

Colman, R H, Fennell, T, Ritter, C, Lau, G, Cava, R J, Wills, A S

Ni2SiO4, Liebenbergite, is an example of a quasi-one-dimensional magnet made up of frustrated corner sharing triangles of Ni2+ (S = 1) ions that propagate parallel to the b axis. Ni2SiO4 is...

Magnetic Charge Transport (2009)

Bramwell, S. T., Giblin, S. R., Calder, S., Aldus, R., Prabhakaran, D., Fennell, T.

It has recently been predicted that certain magnetic materials contain mobile magnetic charges or `monopoles'. Here we address the question of whether these magnetic charges and their associated...

Departments Design Cartoons (2008)

Aidan O’driscoll, Dit T. Cooney, L. Cuddihy, A. Czerwin-abbott, ...

Academic manuscripts are double-blind refereed. Invited and practitioner papers are judged assensu peritorum. Editorial enquiries, manuscripts, books for review should be addressed to the editors at...

Pinch Points and Kasteleyn Transitions: How Spin Ice Changes its Entropy (2007)

Fennell, T., Bramwell, S. T., McMorrow, D. F., Manuel, P.

Complex disordered states - from liquids and glasses to exotic quantum matter - are ubiquitous in nature. Their key properties include finite entropy, power-law correlations and emergent organising...

Pinch points and Kasteleyn transitions in kagome ice (2007)

Fennell, T., Bramwell, S.T., McMorrow, D.F., Manuel, P., Wildes, A.R.

Complex disordered states—from liquids and glasses to exotic quantum matter—are ubiquitous in nature. Their key properties include finite entropy, power-law correlations and emergent organizing...

Neutron scattering studies of the spin ices Ho2Ti2O7 and Dy2Ti2O7 in applied magnetic field (2005)

Fennell, T., Petrenko, O. A., Fak, B., Gardner, J. S., Bramwell, S. T., Ouladdiaf, B.

Neutron diffraction has been used to investigate the magnetic correlations in single crystals of the spin ice materials Ho2Ti2O7 and Dy2Ti2O7 in an external magnetic field applied along either the...

Neutron scattering studies of the spin ices Ho2Ti2O7 and Dy2Ti2O7 in applied magnetic field (2005)

Fennell, T, Petrenko, O A, Fak, B, Gardner, JS, Bramwell, S T, Ouladdiaf, B

Neutron diffraction has been used to investigate the magnetic correlations in single crystals of the spin ice materials Ho2Ti2O7 and Dy2Ti2O7 in an external magnetic field applied along either the...

Neutron Scattering Investigation of the Spin Ice State in Dy2Ti2O7 (2004)

Fennell, T., Petrenko, O. A., Fak, B., Bramwell, S. T., Enjalran, M., Yavors'kii, T., ...

Dy2Ti2O7 has been advanced as an ideal spin ice. We present a neutron scattering investigation of a sample of 162Dy2Ti2O7. The scattering intensity has been mapped in zero applied field in the hhl...

Neutron scattering investigation of the spin ice state in Dy2Ti2O7 (2004)

Fennell, T, Petrenko, O A, Fak, B, Bramwell, S T, Enjalran, M, Yavors'kii, T, ...

Dy2Ti2O7 has been advanced as an ideal spin ice material. We present a neutron scattering investigation of a single-crystal sample of (Dy2Ti2O7)-Dy-162. The scattering intensity has been mapped in...

Er2Ti2O7: Evidence of Order by Disorder in a Frustrated Antiferromagnet (2001)

Champion, J. D. M., Harris, M. J., Holdsworth, P. C. W., Wills, A. S., Balakrishnan, G., Bramwell, S. T., ...

Er_2Ti_2O_7 has been suggested to be a realization of the frustrated < 111 > XY pyrochlore lattice antiferromagnet, for which theory predicts fluctuation-induced symmetry breaking in a highly...

Field Induced Partial Order in the Spin-Ice Dysprosium Titanate (2001)

Fennell, T., Petrenko, O. A., Balakrishnan, G., Bramwell, S. T., Champion, J. D. M., Fak, B., ...

Neutron scattering has been used to investigate the magnetic correlations in the the spin ice material dysprosium titanate, Dy2Ti2O7. An isotopically enriched sample was used to minimise neutron...

Order in the Heisenberg Pyrochlore: The Magnetic Structure of Gd2Ti2O7 (2001)

Champion, J. D. M., Wills, A. S., Fennell, T., Bramwell, S. T., Gardner, J. S., Green, M. A.

The rare earth pyrochlore material Gd2Ti2O7 is considered to be an ideal model frustrated Heisenberg antiferromagnet with additional dipolar interactions. For this system there are several untested...

Spin Correlations in Ho$_{2}$Ti$_{2}$O$_{7}$: a Dipolar Spin Ice System (2001)

Bramwell, S. T., Harris, M. J., Hertog, B. C. Den, Gingras, M. J. P., Gardner, J. S., McMorrow, D. F., ...

The pyrochlore material $\rm Ho_{2}Ti_{2}O_{7}$ has been suggested to show ``spin ice'' behaviour. We present neutron scattering and specific heat results that establish unambiguously that...