Luminescence and electrical conductivity of CsSnBr3, and related phases

Clark, Stephen J.; Flint, Colin; Donaldson, J. D.

doi:10.1016/0022-3697(81)90072-x

Cited by 76 publications

(47 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…for the cubic phase at 300 K as obtained from optical (transport) experiments [28]. The PBE calculated band gap of the cubic-phase CsGeBr 3 and CsSnBr 3 are 583.4 and 279.2 meV (including the spin-orbit coupling), respectively (see Table I into TI.…”

mentioning

confidence: 99%

“…The low temperature phase of CsGeBr 3 is rhombohedral [26] and that of CsSnBr 3 is tetragonal, or monoclinic [27,28]. All these materials will transit into the cubic phase when increasing temperature.…”

mentioning

confidence: 99%

“…All these materials will transit into the cubic phase when increasing temperature. The transition temperature T C is ∼ 510 K for CsGeBr 3 [26], and is around room temperature (∼292 K) for CsSnBr 3 [27,28]. In fact, a lower T C could be achieved by applying an external pressure.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Converting normal insulators into topological insulators via tuning orbital levels

Shi

Liu

et al. 2015

Phys. Rev. B

View full text Add to dashboard Cite

Tuning the spin-orbit coupling strength via foreign element doping and/or modifying bonding strength via strain engineering are the major routes to convert normal insulators to topological insulators. We here propose an alternative strategy to realize topological phase transition by tuning the orbital level. Following this strategy, our first-principles calculations demonstrate that a topological phase transition in some cubic perovskite-type compounds CsGeBr3 and CsSnBr3 could be facilitated by carbon substitutional doping. Such unique topological phase transition predominantly results from the lower orbital energy of the carbon dopant, which can pull down the conduction bands and even induce band inversion. Beyond conventional approaches, our finding of tuning the orbital level may greatly expand the range of topologically nontrivial materials.

show abstract

mentioning

confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

Converting normal insulators into topological insulators via tuning orbital levels

Shi

Liu

et al. 2015

Phys. Rev. B

View full text Add to dashboard Cite

show abstract

“…For example, the specific electric conductivity of the p-type semiconductor CsSnBr3 drops from 10" 1 S > to 10" 6 S by going to CsSnCl3 [26]. A striking example for the effect of alkali atom exchange is R bG eI3 (space group P 2 12 12 1; Z = 4) and C sG eI3 (P222 or Pmmm; Z = 1), respec tively.…”

Section: Introductionmentioning

confidence: 99%

²⁰⁷Pb and ²⁰⁵Tl NMR on Perovskite Type Crystals APbX₃ (A = Cs, Tl, X = Br, I)

Sharma

Weiden

Weiß

1987

Zeitschrift Für Naturforschung A

View full text Add to dashboard Cite

show abstract

“…1c). According to the works [10,11], the luminescence band peaked at 730 nm can be ascribed to the STE emission of CsSnBr 3 . Then the band around 1000 nm corresponds to the radiative transition of electron from the 5s5p Sn 2+ state at the bottom of the conduction band to the conduction sub-band placed lower and created by the 4d states of Br -ion .…”

Section: +mentioning

confidence: 99%