You are here

= 1) probed by thermoelectric power measurements

Title= 1) probed by thermoelectric power measurements
Publication TypeJournal Article
Year of Publication2014
AuthorsHodovanets, H, Liu, Y, Jesche, A, Ran, S, Mun, ED, Lograsso, TA, Bud'ko, SL, Canfield, PC
JournalPhysical Review B
Date Published06
Type of ArticleArticle
ISBN Number1098-0121
Accession NumberWOS:000337944000005
Keywordsbafe2as2, electronic topological transitions, metal, state, superconductivity

= 1). We observe a minimum in the S vertical bar(T=const) versus x at x similar to 0.55 that can be associated with the change in the topology of the Fermi surface, a Lifshitz transition, related to the electron pockets at the center of M point crossing the Fermi level. This feature is clearly observable below similar to 75 K. Thermoelectric power also shows a change in the x similar to 0.8-0.9 range, where the maximum in the thermoelectric power collapses into a plateau. This Lifshitz transition is most likely related to the reconstruction of the Fermi surface associated with the transformation of the hole pockets at the M point into four blades as observed by ARPES measurements.

Custom 1

Complex States

Custom 2

Novel Materials