Matches in SemOpenAlex for { <https://semopenalex.org/work/W3025751773> ?p ?o ?g. }
- W3025751773 abstract "The neutron spin resonance is generally regarded as a key to understanding the magnetically mediated Cooper pairing in unconventional superconductors. Here, we report an inelastic neutron scattering study on the low-energy spin excitations in a quasi-two-dimensional iron-based superconductor ${mathrm{KCa}}_{2}{mathrm{Fe}}_{4}{mathrm{As}}_{4}{mathrm{F}}_{2}$. We have discovered a two-dimensional spin resonant mode with downward dispersions, a behavior closely resembling the low branch of the hourglass-type spin resonance in cuprates. While the resonant intensity is predominant by two broad incommensurate peaks near $Q=(0.5,0.5)$ with a sharp energy peak at ${E}_{R}=16text{ }text{ }mathrm{meV}$, the overall energy dispersion of the mode exceeds the measured maximum total gap ${mathrm{ensuremath{Delta}}}_{mathrm{tot}}=|{mathrm{ensuremath{Delta}}}_{k}|+|{mathrm{ensuremath{Delta}}}_{k+Q}|$. These results deeply challenge the conventional understanding of the resonance modes as magnetic excitons regardless of underlining pairing symmetry schemes, and it also points out that when the iron-based superconductivity becomes very quasi-two-dimensional, the electronic behaviors are similar to those in cuprates." @default.
- W3025751773 created "2020-05-21" @default.
- W3025751773 creator A5002280104 @default.
- W3025751773 creator A5003745801 @default.
- W3025751773 creator A5018091702 @default.
- W3025751773 creator A5024947782 @default.
- W3025751773 creator A5026385696 @default.
- W3025751773 creator A5032010185 @default.
- W3025751773 creator A5044742478 @default.
- W3025751773 creator A5048431959 @default.
- W3025751773 creator A5063352596 @default.
- W3025751773 creator A5064842058 @default.
- W3025751773 creator A5069733214 @default.
- W3025751773 creator A5081455972 @default.
- W3025751773 creator A5083259004 @default.
- W3025751773 creator A5084220071 @default.
- W3025751773 creator A5087541439 @default.
- W3025751773 creator A5090657601 @default.
- W3025751773 creator A5090815103 @default.
- W3025751773 creator A5091522084 @default.
- W3025751773 date "2020-09-10" @default.
- W3025751773 modified "2023-10-14" @default.
- W3025751773 title "Neutron Spin Resonance in a Quasi-Two-Dimensional Iron-Based Superconductor" @default.
- W3025751773 cites W1500313327 @default.
- W3025751773 cites W1516518113 @default.
- W3025751773 cites W1541091896 @default.
- W3025751773 cites W1543246484 @default.
- W3025751773 cites W1546047036 @default.
- W3025751773 cites W1565562620 @default.
- W3025751773 cites W1608877162 @default.
- W3025751773 cites W1813975333 @default.
- W3025751773 cites W1964180870 @default.
- W3025751773 cites W1965029696 @default.
- W3025751773 cites W1973900642 @default.
- W3025751773 cites W1973935618 @default.
- W3025751773 cites W1975330533 @default.
- W3025751773 cites W1975920865 @default.
- W3025751773 cites W1980219967 @default.
- W3025751773 cites W1988549733 @default.
- W3025751773 cites W1991501974 @default.
- W3025751773 cites W2001205120 @default.
- W3025751773 cites W2006625118 @default.
- W3025751773 cites W2011550343 @default.
- W3025751773 cites W2017839288 @default.
- W3025751773 cites W2023454262 @default.
- W3025751773 cites W2025005595 @default.
- W3025751773 cites W2033381978 @default.
- W3025751773 cites W2035383975 @default.
- W3025751773 cites W2041124877 @default.
- W3025751773 cites W2043991907 @default.
- W3025751773 cites W2052190944 @default.
- W3025751773 cites W2057292178 @default.
- W3025751773 cites W2057418971 @default.
- W3025751773 cites W2061729777 @default.
- W3025751773 cites W2071622444 @default.
- W3025751773 cites W2074135151 @default.
- W3025751773 cites W2085575094 @default.
- W3025751773 cites W2086230653 @default.
- W3025751773 cites W2090313870 @default.
- W3025751773 cites W2091112718 @default.
- W3025751773 cites W2092660500 @default.
- W3025751773 cites W2097029420 @default.
- W3025751773 cites W2120145199 @default.
- W3025751773 cites W2159752439 @default.
- W3025751773 cites W2290799182 @default.
- W3025751773 cites W2322775493 @default.
- W3025751773 cites W2499574651 @default.
- W3025751773 cites W2513615877 @default.
- W3025751773 cites W2559818965 @default.
- W3025751773 cites W2562418074 @default.
- W3025751773 cites W2565981443 @default.
- W3025751773 cites W2581085245 @default.
- W3025751773 cites W2611052382 @default.
- W3025751773 cites W2729978512 @default.
- W3025751773 cites W2768440166 @default.
- W3025751773 cites W2769222366 @default.
- W3025751773 cites W2780296020 @default.
- W3025751773 cites W2783055228 @default.
- W3025751773 cites W2787098112 @default.
- W3025751773 cites W2801873045 @default.
- W3025751773 cites W2804216158 @default.
- W3025751773 cites W2805218839 @default.
- W3025751773 cites W2886645792 @default.
- W3025751773 cites W2901970051 @default.
- W3025751773 cites W2921717817 @default.
- W3025751773 cites W2981057227 @default.
- W3025751773 cites W2995654577 @default.
- W3025751773 cites W2999200715 @default.
- W3025751773 cites W3015442745 @default.
- W3025751773 cites W3021316584 @default.
- W3025751773 cites W3035662625 @default.
- W3025751773 cites W3099367032 @default.
- W3025751773 cites W3099820792 @default.
- W3025751773 cites W3101135708 @default.
- W3025751773 cites W3102402475 @default.
- W3025751773 cites W3102415826 @default.
- W3025751773 cites W3104301354 @default.
- W3025751773 cites W3104801138 @default.
- W3025751773 cites W3105881878 @default.
- W3025751773 cites W3121679515 @default.