Specific heat of the skyrmion lattice phase and field-induced tricritical point in MnSi

A. Bauer, M. Garst, C. Pfleiderer

Research output: Contribution to journalArticlepeer-review

118 Scopus citations

Abstract

We report high-precision measurements of the temperature and magnetic field dependence of the specific heat, C(T,H), across the magnetic phase diagram of MnSi. Clear anomalies establish the Skyrmion lattice unambiguously as a thermodynamic phase. The evolution of the specific heat anomalies, the field dependence of the entropy released at the phase transitions, and the temperature versus field dependence of crossover lines provide striking evidence of a tricritical point at μ0HTCPint=340 mT and TTCP=28.5 K. The existence of this tricritical point represents strong support of a helimagnetic Brazovskii transition, i.e., a fluctuation-induced first-order transition at H=0.

Original languageEnglish
Article number177207
JournalPhysical Review Letters
Volume110
Issue number17
DOIs
StatePublished - 26 Apr 2013

Fingerprint

Dive into the research topics of 'Specific heat of the skyrmion lattice phase and field-induced tricritical point in MnSi'. Together they form a unique fingerprint.

Cite this