2015/01/31 by Yazhou Zhou, Dae-Jeong Kim, P. F. S. Rosa +24
Earth and Planetary Sciences · Mathematics · Physics and Astronomy · #Artificial intelligence #Class (philosophy) #Combinatorics #Computer science #Condensed matter physics #High-pressure geophysics and materials #Mathematics #Phase (matter) #Phase transition #Physics #Quantum #Quantum mechanics #Rare-earth and actinide compounds #Topological Materials and Phenomena #Topology (electrical circuits) #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.92.241118
published as Phys. Rev. B (Rapid) 92, 241118 (2015) · 18 pages, 5 figures
arxiv created 2015/06/22 · openalex publication_date 2015/12/29 · openalex created_date 2016/06/24 · arxiv updated 2018/07/03 · openalex updated_date 2026/08/05
The first observation of two pressure-induced quantum phase transitions in a YbB6 single crystal is reported. This material is currently of much interest as there is conflicting experimental support for it belonging to a new class of topological insulators. Based on the results here the authors conclude that while at ambient-pressure YbB6 is topologically trivial, a newly found high-pressure gapped phase could be topologically nontrivial, although a partially gapped semimetal state has also been suggested. This interesting phase deserves further investigation.