Lost Heat Capacity and Entropy in the Helical Magnet MnSi
2010 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 105, no 23, 236403- p.Article in journal (Refereed) Published
The heat capacity of MnSi at B = 0 and B = 4 T was measured in the temperature range 2.5-100 K. To analyze the data, calculations of the phonon spectrum and phonon density of states in MnSi were performed. The calculated phonon frequencies were confirmed by means of inelastic neutron scattering. The analysis of the data suggests the existence of negative contributions to the heat capacity and entropy of MnSi at T > T-c that may imply a specific ordering in the spin subsystem in the paramagnetic phase of MnSi.
Place, publisher, year, edition, pages
2010. Vol. 105, no 23, 236403- p.
PHASE-DIAGRAM, ITINERANT FERROMAGNETS, SPIN FLUCTUATIONS, TRANSITIONS, SCATTERING, METALS, FEGE
IdentifiersURN: urn:nbn:se:kth:diva-36067DOI: 10.1103/PhysRevLett.105.236403ISI: 000286734400008ScopusID: 2-s2.0-78649863966OAI: oai:DiVA.org:kth-36067DiVA: diva2:430369
QC 201107082011-07-082011-07-082011-07-08Bibliographically approved