guest ::
| Home > Publications database > Possible quantum fluctuations in the vicinity of the quantum critical point of $( Sr , Ca )_{3}Ir_{4}Sn_{13}$ revealed by high-energy x-ray diffraction |
| Home > Publications database > Possible quantum fluctuations in the vicinity of the quantum critical point of $( Sr , Ca )_{3}Ir_{4}Sn_{13}$ revealed by high-energy x-ray diffraction |
| Journal Article | PUBDB-2020-01144 |
; ; ; ; ; ; ; ; ;
2020
Inst.
Woodbury, NY
This record in other databases: 
Please use a persistent id in citations: doi:10.1103/PhysRevB.101.104511 doi:10.3204/PUBDB-2020-01144
Abstract: We explore the evolution of the structural phase transition of $(Sr,Ca)_3Ir_4Sn_{13}$, a model system to study the interplay between structural quantum criticality and superconductivity, by means of high-energy x-ray diffraction measurements at high pressures and low temperatures. Our results confirm a rapid suppression of the superlattice transition temperature $T^∗$ against pressure, which extrapolates to zero at a critical pressure of $\approx$ $1.79(4)GPa$. The temperature evolution of the superlattice Bragg peak in $Ca_3Ir_4Sn_{13}$ reveals a drastic decrease of the intensity and an increase of the linewidth when $T→0K$ and $p→p_c$. Such anomaly is likely associated with the emergence of quantum fluctuations that disrupt the formation of long-range superlattice modulation. The revisited temperature-pressure phase diagram of $(Sr,Ca)_3Ir_4Sn_{13}$ thus highlights the intertwined nature of the distinct order parameters present in this system and demonstrates some similarities between this family and the unconventional superconductors.
; 
; 
; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Web of Science Core Collection
|
The record appears in these collections: |
PDF
PDF (PDFA)