Lattice and polarizability mediated spin activity in EuTiO_3

EuTiO_3 is shown to exhibit novel strong spin-charge-lattice coupling deep in the paramagnetic phase. Its existence is evidenced by an, until now, unknown response of the paramagnetic susceptibility at temperatures exceeding the structural phase transition temperature T_S = 282K. The "extra" features in the susceptibility follow the rotational soft zone boundary mode temperature dependence above and below T_S. The theoretical modeling consistently reproduces this behavior and provides reasoning for the stabilization of the soft optic mode other than quantum fluctuations.Comment: 8 pages, 4 figure

Teagasc submission made in response to the Discussion document for the preparation of a National Policy Statement on the Bioeconomy

Teagasc SubmissionThis document is Teagasc’s response to the “Discussion Document for the Preparation of a National Policy Statement on the Bioeconomy” issued by the Department of the Taoiseach’s Economic Division in July 2017. It recognises the potential significance of the bioeconomy to Ireland, offers some policy and strategic insights from other countries, and identifies Teagasc’s role in supporting the development of the bioeconomy in Ireland

‘I have got too much stuff wrong with me’ – an exploration of how young people experience the Social, Emotional and Behavioural Difficulties (SEBD) label within the confines of the UK education system

Young people whose behaviour does not conform to our expectations of how pupils should behave within an educational context have had a variety of labels attached to them including: Social, Emotional and Behavioural Difficulties (SEBD), and Attention Deficit Hyperactivity Disorder (ADHD). The employment of such labels will shape how the young person is perceived by the adults surrounding them. This will not only have an impact on the relationships that are developed between the pupil and the educator but also how the young people see themselves in terms of their own identity. This paper seeks to give voice and explore the position of young people within the confines of their educational experiences. The paper draws on 13 in-depth case studies to reflect on how young people experience the SEBD labels attached to them by others and what pupils consider to be the main antecedents leading them to display behaviour which is deemed unacceptable in the classroom. The paper highlights the importance of providing opportunities for young people to have their voice heard to fill the gap between professional perceptions and those of the pupil. In order to truly understand why young people display behaviour that is considered difficult and how they experience the labels we attach to them we have to speak to young people themselves

Nonlinear pressure dependence ofTNin almost multiferroic EuTiO3

The antiferromagnetic (AFM) phase transition temperature T_N of EuTiO_3 has been studied as a function of pressure p. The data reveal a nonlinear dependence of T_N on p with T_N increasing with increasing pressure. The exchange interactions exhibit an analogous dependence on p as T_N (if the absolute value of the nearest neighbor interaction is considered) and there is evidence that the AFM transition is robust with increasing pressure. The corresponding Weiss temperature {\Theta}_W remains anomalous since it always exhibits positive values. The data are analyzed within the Bloch power law model and provide excellent agreement with experiment.Comment: 9 pages, 4 figures article was selected for inclusion in IOPselec