Extremely high conductivity observed in the triple point topological metal MoP

Nitesh Kumar; Yan Sun; Michael Nicklas; Sarah J. Watzman; Olga Young; Inge Leermakers; Jacob Hornung; Johannes Klotz; Johannes Gooth; Kaustuv Manna; Vicky Suess; Satya N. Guin; Tobias Foerster; Marcus Schmidt; Lukas Muechler; Binghai Yan; Peter Werner; Walter Schnelle; Uli Zeitler; Jochen Wosnitza; Stuart S. P. Parkin; Claudia Felser; Chandra Shekhar

doi:https://doi.org/10.1038/s41467-019-10126-y

Extremely high conductivity observed in the triple point topological metal MoP

Nitesh Kumar, Yan Sun, Michael Nicklas, Sarah J. Watzman, Olga Young, Inge Leermakers, Jacob Hornung, Johannes Klotz, Johannes Gooth, Kaustuv Manna, Vicky Suess, Satya N. Guin, Tobias Foerster, Marcus Schmidt, Lukas Muechler, Binghai Yan, Peter Werner, Walter Schnelle, Uli Zeitler, Jochen WosnitzaStuart S. P. Parkin, Claudia Felser, Chandra Shekhar

Department of Condensed Matter Physics

Weizmann Institute Of Science

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

Abstract

Weyl and Dirac fermions have created much attention in condensed matter physics and materials science. Recently, several additional distinct types of fermions have been predicted. Here, we report ultra-high electrical conductivity in MoP at low temperature, which has recently been established as a triple point fermion material. We show that the electrical resistivity is 6 n Omega cm at 2 K with a large mean free path of 11 microns. de Haas-van Alphen oscillations reveal spin splitting of the Fermi surfaces. In contrast to noble metals with similar conductivity and number of carriers, the magnetoresistance in MoP does not saturate up to 9 T at 2 K. Interestingly, the momentum relaxing time of the electrons is found to be more than 15 times larger than the quantum coherence time. This difference between the scattering scales shows that momentum conserving scattering dominates in MoP at low temperatures.

Original language	English
Article number	2475
Number of pages	7
Journal	Nature Communications
Volume	10
DOIs	https://doi.org/10.1038/s41467-019-10126-y
State	Published - 6 Jun 2019

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Kumar, N., Sun, Y., Nicklas, M., Watzman, S. J., Young, O., Leermakers, I., Hornung, J., Klotz, J., Gooth, J., Manna, K., Suess, V., Guin, S. N., Foerster, T., Schmidt, M., Muechler, L., Yan, B., Werner, P., Schnelle, W., Zeitler, U., ... Shekhar, C. (2019). Extremely high conductivity observed in the triple point topological metal MoP. Nature Communications, 10, Article 2475. https://doi.org/10.1038/s41467-019-10126-y

@article{0a1920b7c4e348c69d258449ab614b20,

title = "Extremely high conductivity observed in the triple point topological metal MoP",

abstract = "Weyl and Dirac fermions have created much attention in condensed matter physics and materials science. Recently, several additional distinct types of fermions have been predicted. Here, we report ultra-high electrical conductivity in MoP at low temperature, which has recently been established as a triple point fermion material. We show that the electrical resistivity is 6 n Omega cm at 2 K with a large mean free path of 11 microns. de Haas-van Alphen oscillations reveal spin splitting of the Fermi surfaces. In contrast to noble metals with similar conductivity and number of carriers, the magnetoresistance in MoP does not saturate up to 9 T at 2 K. Interestingly, the momentum relaxing time of the electrons is found to be more than 15 times larger than the quantum coherence time. This difference between the scattering scales shows that momentum conserving scattering dominates in MoP at low temperatures.",

author = "Nitesh Kumar and Yan Sun and Michael Nicklas and Watzman, {Sarah J.} and Olga Young and Inge Leermakers and Jacob Hornung and Johannes Klotz and Johannes Gooth and Kaustuv Manna and Vicky Suess and Guin, {Satya N.} and Tobias Foerster and Marcus Schmidt and Lukas Muechler and Binghai Yan and Peter Werner and Walter Schnelle and Uli Zeitler and Jochen Wosnitza and Parkin, {Stuart S. P.} and Claudia Felser and Chandra Shekhar",

note = "We acknowledge Prof. Andrew P. Mackenzie for helpful discussion, Dr. Horst Blumtritt for preparing the samples for STEM investigations and Dr. Ulrike Stockert for help in thermal conductivity measurements. This work was financially supported by the ERC Advanced Grant No. 742068 {\textquoteleft}TOPMAT{\textquoteright}. We also acknowledge the support of the High Field Magnet Laboratory Nijmegen (HFML-RU/FOM) and HLD at HZDR, members of the European Magnetic Field Laboratory (EMFL).",

year = "2019",

month = jun,

day = "6",

doi = "https://doi.org/10.1038/s41467-019-10126-y",

language = "الإنجليزيّة",

volume = "10",

journal = "Nature Communications",

issn = "2041-1723",

publisher = "Nature Publishing Group",

}

Kumar, N, Sun, Y, Nicklas, M, Watzman, SJ, Young, O, Leermakers, I, Hornung, J, Klotz, J, Gooth, J, Manna, K, Suess, V, Guin, SN, Foerster, T, Schmidt, M, Muechler, L, Yan, B, Werner, P, Schnelle, W, Zeitler, U, Wosnitza, J, Parkin, SSP, Felser, C & Shekhar, C 2019, 'Extremely high conductivity observed in the triple point topological metal MoP', Nature Communications, vol. 10, 2475. https://doi.org/10.1038/s41467-019-10126-y

TY - JOUR

T1 - Extremely high conductivity observed in the triple point topological metal MoP

AU - Kumar, Nitesh

AU - Sun, Yan

AU - Nicklas, Michael

AU - Watzman, Sarah J.

AU - Young, Olga

AU - Leermakers, Inge

AU - Hornung, Jacob

AU - Klotz, Johannes

AU - Gooth, Johannes

AU - Manna, Kaustuv

AU - Suess, Vicky

AU - Guin, Satya N.

AU - Foerster, Tobias

AU - Schmidt, Marcus

AU - Muechler, Lukas

AU - Yan, Binghai

AU - Werner, Peter

AU - Schnelle, Walter

AU - Zeitler, Uli

AU - Wosnitza, Jochen

AU - Parkin, Stuart S. P.

AU - Felser, Claudia

AU - Shekhar, Chandra

N1 - We acknowledge Prof. Andrew P. Mackenzie for helpful discussion, Dr. Horst Blumtritt for preparing the samples for STEM investigations and Dr. Ulrike Stockert for help in thermal conductivity measurements. This work was financially supported by the ERC Advanced Grant No. 742068 ‘TOPMAT’. We also acknowledge the support of the High Field Magnet Laboratory Nijmegen (HFML-RU/FOM) and HLD at HZDR, members of the European Magnetic Field Laboratory (EMFL).

PY - 2019/6/6

Y1 - 2019/6/6

N2 - Weyl and Dirac fermions have created much attention in condensed matter physics and materials science. Recently, several additional distinct types of fermions have been predicted. Here, we report ultra-high electrical conductivity in MoP at low temperature, which has recently been established as a triple point fermion material. We show that the electrical resistivity is 6 n Omega cm at 2 K with a large mean free path of 11 microns. de Haas-van Alphen oscillations reveal spin splitting of the Fermi surfaces. In contrast to noble metals with similar conductivity and number of carriers, the magnetoresistance in MoP does not saturate up to 9 T at 2 K. Interestingly, the momentum relaxing time of the electrons is found to be more than 15 times larger than the quantum coherence time. This difference between the scattering scales shows that momentum conserving scattering dominates in MoP at low temperatures.

AB - Weyl and Dirac fermions have created much attention in condensed matter physics and materials science. Recently, several additional distinct types of fermions have been predicted. Here, we report ultra-high electrical conductivity in MoP at low temperature, which has recently been established as a triple point fermion material. We show that the electrical resistivity is 6 n Omega cm at 2 K with a large mean free path of 11 microns. de Haas-van Alphen oscillations reveal spin splitting of the Fermi surfaces. In contrast to noble metals with similar conductivity and number of carriers, the magnetoresistance in MoP does not saturate up to 9 T at 2 K. Interestingly, the momentum relaxing time of the electrons is found to be more than 15 times larger than the quantum coherence time. This difference between the scattering scales shows that momentum conserving scattering dominates in MoP at low temperatures.

U2 - https://doi.org/10.1038/s41467-019-10126-y

DO - https://doi.org/10.1038/s41467-019-10126-y

M3 - مقالة

SN - 2041-1723

VL - 10

JO - Nature Communications

JF - Nature Communications

M1 - 2475

ER -

Extremely high conductivity observed in the triple point topological metal MoP

Abstract

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