The Non-metal Rich Region of the Hf-Te System.

Brattås, Leif; Kjekshus, Arne; Rasmussen, Svend Erik; Svensson, Sigfrid; Koskikallio, Jouko; Kachi, Sukeji

doi:10.3891/acta.chem.scand.25-2783

Cited by 43 publications

(21 citation statements)

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“…As reported by Brattås et al ., we confirmed that the sintering condition of c.a. 500 °C indeed favours the growth of the HfTe 3 phase18. However, when rapid cooling from 500 °C ( e.g.…”

Section: Resultsmentioning

confidence: 98%

“…Similar cross-chain interactions are absent in other members of the MQ 3 family (when M = group IV transition metal and Q = S/Se)17. Of the MTe 3 materials, HfTe 3 is the only other material expected theoretically1819. There are no known reports for TiTe 3 nor Nb/TaTe 3 .…”

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confidence: 82%

“…However, by using the reaction conditions outlined by Brattås et al . we found that the successful synthesis of HfTe 3 1819 was irreproducible. Therefore, although theoretical band structure calculations have predicted HfTe 3 to be metallic162021 there is currently no experimental confirmation.…”

mentioning

confidence: 96%

“…Therefore, although theoretical band structure calculations have predicted HfTe 3 to be metallic162021 there is currently no experimental confirmation. As far as the authors are aware, the available experimental data for HfTe 3 include the original structural characterization18, and the determination of its basic magnetic properties (temperature-independent diamagnetism)19. In addition, it has been recently reported by scanning tunneling spectroscopy that Hf/HfTe 5 /HfTe 3 films exhibited a superconducting gap-like spectra22.…”

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confidence: 99%

“…By modifying the original synthesis conditions1819, polycrystalline HfTe 3 samples have been successfully synthesized. The crystal structure has been analyzed using Rietveld refinement and the first experimental evidence of metallicity in this material is reported.…”

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confidence: 99%

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Coexistence of superconductivity and charge-density wave in the quasi-one-dimensional material HfTe3

Denholme

Yukawa

Tsumura

et al. 2017

Sci Rep

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We present the first experimental evidence for metallicity, superconductivity (SC) and the co-existence of charge density waves (CDW) in the quasi-one-dimensional material HfTe3. The existence of such phenomena is a typical characteristic of the transition metal chalcogenides however, without the application of hydrostatic pressure/chemical doping, it is rare for a material to exhibit the co-existence of both states. Materials such as HfTe3 can therefore provide us with a unique insight into the relationship between these multiple ordered states. By improving on the original synthesis conditions, we have successfully synthesised single phase HfTe3 and confirmed the resultant structure by performing Rietveld refinement. Using low temperature resistivity measurements, we provide the first experimental evidence of SC at ~1.4 K as well as a resistive anomaly indicative of a CDW formation at ~82 K. By the application of hydrostatic-pressure, the resistivity anomaly shifts to higher temperature. The results show that HfTe3 is a promising new material to help study the relationship between SC and CDW.

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“…As reported by Brattås et al ., we confirmed that the sintering condition of c.a. 500 °C indeed favours the growth of the HfTe 3 phase18. However, when rapid cooling from 500 °C ( e.g.…”

Section: Resultsmentioning

confidence: 98%

mentioning

confidence: 82%