# Rezension

 2018-10-2910:52 [IMPULSE-2018-00264] Review/Journal Article Weber, T. ; Waizner, J. ; Tucker, G. S. ; et al Non-reciprocal magnons in non-centrosymmetric MnSi AIP Advances 8(10), 101328 - (2018) [10.1063/1.5041036] Using two cold-neutron triple-axis spectrometers we have succeeded in fully mapping out the field-dependent evolution of the non-reciprocal magnon dispersion relations in all magnetic phases of MnSi. The non-reciprocal nature of the dispersion manifests itself in a full asymmetry (non-reciprocity) of the dynamical structure factor S(q,E,μ$_0$H$_{int}$) with respect to flipping either the direction of the applied magnetic field μ$_0$H$_{int}$, the reduced momentum transfer q, or the energy transfer E.. Restricted: PDF; 2015-08-0509:41 [FZJ-2015-04981] Journal Article/Review Fritsch, V. ; Stockert, O. ; Huang, C.-L. ; et al Role of the tuning parameter at magnetic quantum phase transitions European physical journal special topics 224(6), 997 - 1019 (2015) [10.1140/epjst/e2015-02443-6] Heavy-fermion systems, with their competition betweenKondo and RKKY interactions, offer a rich variety of materials thatmay be driven to a magnetic quantum phase transition. Quite often,a quantum critical point can be approached by chemical substitution,notably of isoelectric ligands of Ce, as in CeCu6−xAux andCePd1−xNixAl. [...] External links: Restricted; Restricted; Restricted; Restricted; Restricted; Restricted