Simran Sethi, Bread Wine Chocolate: the Slow Loss of the Foods We Love, (HarperOne: USA, November 2015)

Award-winning journalist Simran Sethi says that “this is a book about food, but it really is a book about love.” Evidence of this can be found throughout the book, as we follow her on her journey towards discovering the origin of her favourite foods, which include Wine, Chocolate, Bread, Beer, Coffee and also Octopus, from plough to plate. Bread Wine Chocolate looks at how these different food items impact the everyday lives of people. Though we have most of these foods for pleasure, we forget the hard work that goes behind cultivating the most beautiful wines and the most exquisite chocolates. This book gives us a behind the scenes look into the story of these foods, and the role each individual, be it a farmer or a consumer or a retailer, plays in the process of creating the finished product. DOI: 10.5281/zenodo.346491

Fe-spin reorientation in PrFeAsO : Evidences from resistivity and specific heat studies

We report the magnetic field dependence of resistivity ($\rho$) and specific heat ($C$) for the non-superconducting PrFeAsO compound. Our study shows a hitherto unobserved anomaly at $T_{SR}$ in the resistivity and specific heat data which arises as a result of the interplay of antiferromagnetic (AFM) Pr and Fe sublattices. Below the AFM transition temperature ($T_N^{\rm{Pr}}$), Pr moment orders along the crystallographic c axis and its effect on the iron subsystem causes a reorientation of the ordered inplane Fe moments in a direction out of the $ab$ plane. Application of magnetic field introduces disorder in the AFM Pr sublattice, which, in turn, reduces the out-of-plane Pr-Fe exchange interaction responsible for Fe spin reorientation. Both in $\rho$($T$) and $d(C/T)/dT$ curves, the peak at $T_{SR}$ broadens with the increase of $H$ due to the introduction of the disorder in the AFM Pr sublattice by magnetic field. In $\rho$($T$) curve, the peak shifts towards lower temperature with $H$ and disappears above 6 T while in $d(C/T)/dT$ curve the peak remains visible up to 14 T. The broadening of the anomaly at $T_N^{\rm{Pr}}$ in $C(T)$ with increasing $H$ further confirms that magnetic field induces disorder in the AFM Pr sublattice.Comment: 8 pages, 10 Figure