2018
DOI: 10.1016/j.ssc.2018.08.014
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Properties and superconductivity in Ti-doped NiTe2 single crystals

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Cited by 26 publications
(29 citation statements)
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“…The existence of topological surface states with chiral spin-texture over a wide range of energies was supported by spin-and angle-resolved photoemission spectroscopy [52]. Additionally, superconductivity was observed in NiTe 2 under pressure [53] and with the intercalation of Ti into the van der Waals gap (the space between two adjacent chalcogenide layers) [50], and was also predicted in atomically thin systems [54]. Moreover, the energy position of its Dirac node, closer to the Fermi level when compared with similar systems [42,55,56], combined with accessible high-quality single crystals [57][58][59] substantiate the interest on the material.…”
Section: Introductionmentioning
confidence: 91%
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“…The existence of topological surface states with chiral spin-texture over a wide range of energies was supported by spin-and angle-resolved photoemission spectroscopy [52]. Additionally, superconductivity was observed in NiTe 2 under pressure [53] and with the intercalation of Ti into the van der Waals gap (the space between two adjacent chalcogenide layers) [50], and was also predicted in atomically thin systems [54]. Moreover, the energy position of its Dirac node, closer to the Fermi level when compared with similar systems [42,55,56], combined with accessible high-quality single crystals [57][58][59] substantiate the interest on the material.…”
Section: Introductionmentioning
confidence: 91%
“…In this context, the transition metal dichalcogenide NiTe 2 was recently rediscovered as a type-II Dirac semimetal [49][50][51]. Transport measurements revealed a nonsaturating linear magnetoresistance and quantum oscillations confirmed the existence of a nontrivial Berry phase for the light mass carriers [49].…”
Section: Introductionmentioning
confidence: 99%
“…Em conjunto com os resultados experimentais, o cálculo de estrutura de bandas sugere que o sistema Cu x ZrTe 2−y possa apresentar uma topologia não-trivial. Logo em seguida foi observado uma fenomenologia muito semelhante para o composto Ti x NiTe 2 (LIMA et al, 2018). É previsto que supercondutores com fases topológicas não-triviais, consistindo principal-mente em sistemas com quebra de simetria de rotação-de-spin e reversão-temporal, apresentem estados de borda como descrito pela equação de Majorana (SENTHIL;FISHER, 2000;CHA-MON et al, 2010;BEENAKKER, 2014).…”
Section: Por Que Dicalcogenetos De Metais De Transição?unclassified
“…Logo em seguida estados de superfície com texturas de spin quirais, topologicamente não-triviais, foram suportados por medidas de espectroscopia de fotoemissão resolvida em ângulo e spin (GHOSH et al, 2019). Em paralelo, formas de induzir uma fase supercondutora através da redução da dimensionalidade do sistema, pela aplicação de pressão e intercalação de metais de transição no gap de van der Waals foram propostas (ZHENG et al, 2020;LI et al, 2019;LIMA et al, 2018), evidenciando os efeitos de correlação eletrônica e quebra espontânea de simetria nesse sistema.…”
Section: Método Do Pseudopotencialunclassified
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