Resistivity of Weyl semimetals NbP and TaP under pressure

M. Einaga; K. Shimizu; J. Hu; Z. Q. Mao; A. Politano

doi:10.1002/pssr.201700182

Resistivity of Weyl semimetals NbP and TaP under pressure

M. Einaga, K. Shimizu, J. Hu, Z. Q. Mao, A. Politano

Research output: Contribution to journal › Letter › peer-review

5 Scopus citations

Abstract

The resistivity of Weyl semimetals NbP and TaP has been investigated as a function of pressure and temperature. The behaviour of the resistivity as a function of pressure and temperature is closely correlated to the location of the Weyl points compared to the Fermi energy. The rapid increase of the resistivity in TaP and NbP under the application of 4.5 and 8.0 GPa is related with the shift of Weyl points, which affords a finite density of states near the Fermi energy. Specifically, we find that under pressure the Weyl points are situated above the Fermi energy. As regards the temperature behaviour, we detect a nonmonotonous behaviour of resistivity in TaP at 8.7 and 9.8 GPa as a function of temperature, whereas in the case of NbP the behaviour is more complicate.

Original language	English (US)
Article number	1700182
Journal	Physica Status Solidi - Rapid Research Letters
Volume	11
Issue number	8
DOIs	https://doi.org/10.1002/pssr.201700182
State	Published - Aug 2017

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics

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title = "Resistivity of Weyl semimetals NbP and TaP under pressure",

abstract = "The resistivity of Weyl semimetals NbP and TaP has been investigated as a function of pressure and temperature. The behaviour of the resistivity as a function of pressure and temperature is closely correlated to the location of the Weyl points compared to the Fermi energy. The rapid increase of the resistivity in TaP and NbP under the application of 4.5 and 8.0 GPa is related with the shift of Weyl points, which affords a finite density of states near the Fermi energy. Specifically, we find that under pressure the Weyl points are situated above the Fermi energy. As regards the temperature behaviour, we detect a nonmonotonous behaviour of resistivity in TaP at 8.7 and 9.8 GPa as a function of temperature, whereas in the case of NbP the behaviour is more complicate.",

author = "M. Einaga and K. Shimizu and J. Hu and Mao, {Z. Q.} and A. Politano",

year = "2017",

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journal = "Physica Status Solidi - Rapid Research Letters",

issn = "1862-6254",

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TY - JOUR

T1 - Resistivity of Weyl semimetals NbP and TaP under pressure

AU - Einaga, M.

AU - Shimizu, K.

AU - Hu, J.

AU - Mao, Z. Q.

AU - Politano, A.

PY - 2017/8

Y1 - 2017/8

N2 - The resistivity of Weyl semimetals NbP and TaP has been investigated as a function of pressure and temperature. The behaviour of the resistivity as a function of pressure and temperature is closely correlated to the location of the Weyl points compared to the Fermi energy. The rapid increase of the resistivity in TaP and NbP under the application of 4.5 and 8.0 GPa is related with the shift of Weyl points, which affords a finite density of states near the Fermi energy. Specifically, we find that under pressure the Weyl points are situated above the Fermi energy. As regards the temperature behaviour, we detect a nonmonotonous behaviour of resistivity in TaP at 8.7 and 9.8 GPa as a function of temperature, whereas in the case of NbP the behaviour is more complicate.

AB - The resistivity of Weyl semimetals NbP and TaP has been investigated as a function of pressure and temperature. The behaviour of the resistivity as a function of pressure and temperature is closely correlated to the location of the Weyl points compared to the Fermi energy. The rapid increase of the resistivity in TaP and NbP under the application of 4.5 and 8.0 GPa is related with the shift of Weyl points, which affords a finite density of states near the Fermi energy. Specifically, we find that under pressure the Weyl points are situated above the Fermi energy. As regards the temperature behaviour, we detect a nonmonotonous behaviour of resistivity in TaP at 8.7 and 9.8 GPa as a function of temperature, whereas in the case of NbP the behaviour is more complicate.

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