Low temperature resistivity plateau and non-saturating magnetoresistance in Type-II Weyl semimetal WP2

V. Nagpal; P. Kumar; Sudesh; S. Patnaik

doi:10.1063/1.5029018

Low temperature resistivity plateau and non-saturating magnetoresistance in Type-II Weyl semimetal WP₂

V. Nagpal, P. Kumar, Sudesh, S. Patnaik

Jawaharlal Nehru University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Scopus citations

Abstract

We have studied the resistivity and magnetoresistance (MR) properties of the recently predicted type-II Weyl semimetal WP₂. Polycrystalline WP₂ is synthesized using solid state reaction and crystallizes in an orthorhombic structure with the Cmc2₁ spacegroup. The temperature dependent resistivity is enhanced with the application of magnetic field and a resistivity plateau is observed at low temperatures. We find a small dip in resistivity around 30K at 5T field suggesting that there might be a metal-insulator-like transition at higher magnetic fields. A non-saturating magnetoresistance is observed at low temperatures with maximum MR ∼ 94% at 2K and 6T. The value of MR decreases with the increase in temperature. We see a deviation from Kohler's power law which implies that the system comprises of two types of charge carriers.

Original language	English
Title of host publication	DAE Solid State Physics Symposium 2017
Editors	Amitabh Das, Surendra Singh, Arup Biswas
Publisher	American Institute of Physics Inc.
ISBN (Electronic)	9780735416345
DOIs	https://doi.org/10.1063/1.5029018
State	Published - 10 Apr 2018
Externally published	Yes
Event	62nd DAE Solid State Physics Symposium 2017 - Anushaktinagar, Mumbai, India Duration: 26 Dec 2017 → 30 Dec 2017

Publication series

Name	AIP Conference Proceedings
Volume	1942
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Conference

Conference	62nd DAE Solid State Physics Symposium 2017
Country/Territory	India
City	Anushaktinagar, Mumbai
Period	26/12/17 → 30/12/17

Bibliographical note

Publisher Copyright:
© 2018 Author(s).

Funding

V. Nagpal and P. Kumar acknowledge UGC, New Delhi for UGC NET-JRF fellowship and JNU SRF fellowship respectively for financial support. Sudesh acknowledges UGC-D. S. Kothari Postdoctoral Fellowship from UGC, New Delhi. S. Patnaik thanks funding support of SERB(Project-ID: EMR/2016/003998/PHY), DST-FIST and DST-PURSE programs of Government of India.

Funders	Funder number
DST-FIST
DST-PURSE
UGC-D
University Grants Committee
Science and Engineering Research Board	EMR/2016/003998/PHY

Access to Document

10.1063/1.5029018

Cite this

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abstract = "We have studied the resistivity and magnetoresistance (MR) properties of the recently predicted type-II Weyl semimetal WP2. Polycrystalline WP2 is synthesized using solid state reaction and crystallizes in an orthorhombic structure with the Cmc21 spacegroup. The temperature dependent resistivity is enhanced with the application of magnetic field and a resistivity plateau is observed at low temperatures. We find a small dip in resistivity around 30K at 5T field suggesting that there might be a metal-insulator-like transition at higher magnetic fields. A non-saturating magnetoresistance is observed at low temperatures with maximum MR ∼ 94% at 2K and 6T. The value of MR decreases with the increase in temperature. We see a deviation from Kohler's power law which implies that the system comprises of two types of charge carriers.",

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Nagpal, V, Kumar, P, Sudesh & Patnaik, S 2018, Low temperature resistivity plateau and non-saturating magnetoresistance in Type-II Weyl semimetal WP₂. in A Das, S Singh & A Biswas (eds), DAE Solid State Physics Symposium 2017., 110035, AIP Conference Proceedings, vol. 1942, American Institute of Physics Inc., 62nd DAE Solid State Physics Symposium 2017, Anushaktinagar, Mumbai, India, 26/12/17. https://doi.org/10.1063/1.5029018

Low temperature resistivity plateau and non-saturating magnetoresistance in Type-II Weyl semimetal WP₂. / Nagpal, V.; Kumar, P.; Sudesh et al.
DAE Solid State Physics Symposium 2017. ed. / Amitabh Das; Surendra Singh; Arup Biswas. American Institute of Physics Inc., 2018. 110035 (AIP Conference Proceedings; Vol. 1942).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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