Matches in SemOpenAlex for { <https://semopenalex.org/work/W2956162489> ?p ?o ?g. }
- W2956162489 endingPage "103001" @default.
- W2956162489 startingPage "103001" @default.
- W2956162489 abstract "Fe$_{1+y}$Te$_{1-x}$Se$_x$ is unique in their structural simplicity, consisting of only FeTe/Se layers, which is favorable for probing the mechanism of superconductivity. Recently, a topological surface superconductivity as well as the Majorana Fermions has been observed, which makes Fe$_{1+y}$Te$_{1-x}$Se$_x$ the first high temperature topological superconductor. Since large size single crystal of Fe$_{1+y}$Te$_{1-x}$Se$_x$ can be easily grown, many researches have been performed. However, a large part of the reported results are under controversy, including the resistivity, susceptibility, Hall effect, gap structure, phase diagram, etc. These controversies are believed to come from the sample-dependent Fe nonstoichiometries, which originate from the partial occupation of the second Fe site (excess Fe) in the Te/Se layer. The excess Fe with valence near Fe$^+$ will provide electron doping into the system. Meanwhile, the excess Fe is also strongly magnetic, which will act as a paring breaker and also localize the charge carriers. Removing the excess Fe is essential to probe the intrinsic properties and mechanism of superconductivity of Fe$_{1+y}$Te$_{1-x}$Se$_x$ compounds. In this topical review, we propose the effective approaches to remove excess Fe in Fe$_{1+y}$Te$_{1-x}$Se$_x$. Furthermore, we discuss the mechanism of annealing based on the evolutions of structure, composition, and morphology with annealing. Moreover, we also review the annealing effects on the normal state and superconducting properties, including the magnetism, transport properties, band structure, $T_{rm{c}}$, phase diagram, upper critical field, anisotropy, critical current density, gap structure, and superconducting pairing. This review presents not only the optimal way to prepare crystals without excess Fe, but also the intrinsic properties of Fe$_{1+y}$Te$_{1-x}$Se$_x$ without the influence of excess Fe." @default.
- W2956162489 created "2019-07-23" @default.
- W2956162489 creator A5053240569 @default.
- W2956162489 creator A5069055878 @default.
- W2956162489 creator A5089768656 @default.
- W2956162489 date "2019-08-22" @default.
- W2956162489 modified "2023-10-14" @default.
- W2956162489 title "Review of annealing effects and superconductivity in Fe<sub>1+<i>y</i> </sub>Te<sub>1−<i>x</i> </sub>Se<sub> <i>x</i> </sub> superconductors" @default.
- W2956162489 cites W121752402 @default.
- W2956162489 cites W1502343738 @default.
- W2956162489 cites W1512637664 @default.
- W2956162489 cites W1587211183 @default.
- W2956162489 cites W1605459113 @default.
- W2956162489 cites W1655051861 @default.
- W2956162489 cites W1659501886 @default.
- W2956162489 cites W1662908585 @default.
- W2956162489 cites W1664712965 @default.
- W2956162489 cites W1760086811 @default.
- W2956162489 cites W1760458017 @default.
- W2956162489 cites W1795898088 @default.
- W2956162489 cites W1830571523 @default.
- W2956162489 cites W1880524529 @default.
- W2956162489 cites W1922534392 @default.
- W2956162489 cites W1966479481 @default.
- W2956162489 cites W1968833103 @default.
- W2956162489 cites W1970842925 @default.
- W2956162489 cites W1972045032 @default.
- W2956162489 cites W1976486292 @default.
- W2956162489 cites W1979297112 @default.
- W2956162489 cites W1979548956 @default.
- W2956162489 cites W1980317816 @default.
- W2956162489 cites W1980631183 @default.
- W2956162489 cites W1987502286 @default.
- W2956162489 cites W1987886478 @default.
- W2956162489 cites W1988281741 @default.
- W2956162489 cites W1995133528 @default.
- W2956162489 cites W1999647998 @default.
- W2956162489 cites W2001519974 @default.
- W2956162489 cites W2004918017 @default.
- W2956162489 cites W2011490729 @default.
- W2956162489 cites W2013445204 @default.
- W2956162489 cites W2018683460 @default.
- W2956162489 cites W2019634439 @default.
- W2956162489 cites W2026586631 @default.
- W2956162489 cites W2026897289 @default.
- W2956162489 cites W2031328952 @default.
- W2956162489 cites W2036607990 @default.
- W2956162489 cites W2037880212 @default.
- W2956162489 cites W2040519001 @default.
- W2956162489 cites W2041430287 @default.
- W2956162489 cites W2044618875 @default.
- W2956162489 cites W2045504112 @default.
- W2956162489 cites W2057418971 @default.
- W2956162489 cites W2057895638 @default.
- W2956162489 cites W2058577708 @default.
- W2956162489 cites W2060544323 @default.
- W2956162489 cites W2065698521 @default.
- W2956162489 cites W2069536889 @default.
- W2956162489 cites W2069649984 @default.
- W2956162489 cites W2073960969 @default.
- W2956162489 cites W2079672145 @default.
- W2956162489 cites W2103142904 @default.
- W2956162489 cites W2111173680 @default.
- W2956162489 cites W2125284466 @default.
- W2956162489 cites W2129916701 @default.
- W2956162489 cites W2137893259 @default.
- W2956162489 cites W2142617637 @default.
- W2956162489 cites W2153590034 @default.
- W2956162489 cites W2227874989 @default.
- W2956162489 cites W2242745584 @default.
- W2956162489 cites W2279629675 @default.
- W2956162489 cites W2311642600 @default.
- W2956162489 cites W2329665227 @default.
- W2956162489 cites W2347189549 @default.
- W2956162489 cites W2605658901 @default.
- W2956162489 cites W2688544862 @default.
- W2956162489 cites W2750688291 @default.
- W2956162489 cites W2766978321 @default.
- W2956162489 cites W2767100903 @default.
- W2956162489 cites W2791237875 @default.
- W2956162489 cites W2887214189 @default.
- W2956162489 cites W2887552177 @default.
- W2956162489 cites W2949088063 @default.
- W2956162489 cites W2962856975 @default.
- W2956162489 cites W3098852559 @default.
- W2956162489 cites W3098970500 @default.
- W2956162489 cites W3099057944 @default.
- W2956162489 cites W3099512200 @default.
- W2956162489 cites W3100496034 @default.
- W2956162489 cites W3101886211 @default.
- W2956162489 cites W3103371130 @default.
- W2956162489 cites W3103716565 @default.
- W2956162489 cites W3103908342 @default.
- W2956162489 cites W3104311229 @default.
- W2956162489 cites W3104319449 @default.
- W2956162489 cites W3105107631 @default.
- W2956162489 cites W3105865553 @default.
- W2956162489 cites W3106462044 @default.