Large enhancement of the CDW resistivity anomaly and traces of superconductivity in imperfect samples of NbTe4. (2019)
- Authors:
- USP affiliated authors: MACHADO, ANTONIO JEFFERSON DA SILVA - EEL ; CHAIA, NABIL - EEL ; CANOVA, JULIO CESAR - EEL ; FARIA, LEANDRO RODRIGUES DE - EEL ; LIMA, BRUNO SANCHES DE - EEL ; ABUD, FÁBIO SANTOS ALVES - IF
- Unidades: EEL; IF
- DOI: 10.1016/j.matchemphys.2019.01.008
- Assunto: SUPERCONDUTIVIDADE
- Keywords: NbTe4; One-dimensional conductor; CDW; Superconductivity
- Agências de fomento:
- Language: Inglês
- Abstract: Transition metal chalcogenides usually crystallize in low-dimensional structures that frequently host electronic instabilities such as charge density waves (CDW) and superconductivity. Among them is NbTe4. This compound is a quasi-one-dimensional conductor that exhibits successive CDW transitions and superconductivity at 2.2 K when hydrostatic pressure is applied. The binary Nb-Te phase diagram predicts that this compound is non-stoichiometric and exists within a Te composition range. This work presents a systematic investigation of the physical properties of NbTe4-δ polycrystalline samples. Electrical resistivity measurements show a large enhancement of the anomaly related to the CDW transition in the vicinity of 200 K. Further characterization demonstrates that Te deficiency can also induce superconductivity in this compound at 5.5 K and coexists with the CDW state.
- Imprenta:
- Source:
- Título do periódico: Materials chemistry and physics
- ISSN: 0254-0584
- Volume/Número/Paginação/Ano: v.226, p.95-99, 2019
- Este periódico é de assinatura
- Este artigo NÃO é de acesso aberto
- Cor do Acesso Aberto: closed
-
ABNT
LIMA, Bruno Sanches de et al. Large enhancement of the CDW resistivity anomaly and traces of superconductivity in imperfect samples of NbTe4. Materials chemistry and physics, v. 226, p. 95-99, 2019Tradução . . Disponível em: https://doi.org/10.1016/j.matchemphys.2019.01.008. Acesso em: 12 maio 2024. -
APA
Lima, B. S. de, Chaia, N., Grant, T. W., Faria, L. R. de, Canova, J. C., Oliveira, F. S., et al. (2019). Large enhancement of the CDW resistivity anomaly and traces of superconductivity in imperfect samples of NbTe4. Materials chemistry and physics, 226, 95-99. doi:10.1016/j.matchemphys.2019.01.008 -
NLM
Lima BS de, Chaia N, Grant TW, Faria LR de, Canova JC, Oliveira FS, Abud FSA, Machado AJ da S. Large enhancement of the CDW resistivity anomaly and traces of superconductivity in imperfect samples of NbTe4. [Internet]. Materials chemistry and physics. 2019 ;226 95-99.[citado 2024 maio 12 ] Available from: https://doi.org/10.1016/j.matchemphys.2019.01.008 -
Vancouver
Lima BS de, Chaia N, Grant TW, Faria LR de, Canova JC, Oliveira FS, Abud FSA, Machado AJ da S. Large enhancement of the CDW resistivity anomaly and traces of superconductivity in imperfect samples of NbTe4. [Internet]. Materials chemistry and physics. 2019 ;226 95-99.[citado 2024 maio 12 ] Available from: https://doi.org/10.1016/j.matchemphys.2019.01.008 - Absence of superconductivity in 'NB''B'
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- Doping-induced superconductivity of ZrB 2 and HfB 2
- Evidence of a Nodal Line in the Superconducting Gap Symmetry of Noncentrosymmetric
- Evidence for topological behavior in superconducting Cu x ZrTe 2 − y
Informações sobre o DOI: 10.1016/j.matchemphys.2019.01.008 (Fonte: oaDOI API)
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