Ontology highlight
ABSTRACT:
SUBMITTER: Varma CM
PROVIDER: S-EPMC4443351 | biostudies-literature | 2015 May
REPOSITORIES: biostudies-literature
Varma Chandra M CM Zhu Lijun L
Proceedings of the National Academy of Sciences of the United States of America 20150504 20
Recent highly accurate sound velocity measurements reveal a phase transition to a competing phase in YBa2Cu3O6+δ that is not identified in available specific heat measurements. We show that this signature is consistent with the universality class of the loop current-ordered state when the free-energy reduction is similar to the superconducting condensation energy, due to the anomalous fluctuation region of such a transition. We also compare the measured specific heat with some usual types of tra ...[more]