Grissonnanche, Gaël, Fang, Yawen, Legros, Anaëlle, Verret, Simon, Laliberte, Francis, Collignon, Clément, Zhou, Jianshi, Graf, David, Goddard, Paul, Taillefer, Louis and Ramshaw, B. J. (2021) Data for Linear-in temperature resistivity from an isotropic Planckian scattering rate. [Dataset]

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Abstract

A variety of ‘strange metals’ exhibit resistivity that decreases linearly with temperature as the temperature decreases to zero1,2,3, in contrast to conventional metals where resistivity decreases quadratically with temperature. This linear-in-temperature resistivity has been attributed to charge carriers scattering at a rate given by ħ/τ = αkBT, where α is a constant of order unity, ħ is the Planck constant and kB is the Boltzmann constant. This simple relationship between the scattering rate and temperature is observed across a wide variety of materials, suggesting a fundamental upper limit on scattering—the ‘Planckian limit’4,5—but little is known about the underlying origins of this limit. Here we report a measurement of the angle-dependent magnetoresistance of La1.6−xNd0.4SrxCuO4—a hole-doped cuprate that shows linear-in-temperature resistivity down to the lowest measured temperatures6. The angle-dependent magnetoresistance shows a well defined Fermi surface that agrees quantitatively with angle-resolved photoemission spectroscopy measurements7 and reveals a linear-in-temperature scattering rate that saturates at the Planckian limit, namely α = 1.2 ± 0.4. Remarkably, we find that this Planckian scattering rate is isotropic, that is, it is independent of direction, in contrast to expectations from ‘hotspot’ models8,9. Our findings suggest that linear-in-temperature resistivity in strange metals emerges from a momentum-independent inelastic scattering rate that reaches the Planckian limit.

Item Type:	Dataset
Subjects:	Q Science > QC Physics
Divisions:	Faculty of Science, Engineering and Medicine > Science > Physics
Type of Data:	Experimental data
Library of Congress Subject Headings (LCSH):	Condensed matter, Superconductivity, Particles (Nuclear physics)
Publisher:	University of Warwick, Department of Physics
Official Date:	29 July 2021
Dates:	Date Event 29 July 2021 Published 23 July 2021 Available 12 May 2021 Created
Status:	Not Peer Reviewed
Publication Status:	Published
Media of Output (format):	.dat
Access rights to Published version:	Open Access (Creative Commons)
Copyright Holders:	University of Warwick
Description:	The archive contains the experimental data from the following figures: Figure 2a Extended Data (ED) Figure 1b Extended Data (ED) Figure 5a The rho_xx and rho_zz data shown in Figure 3 are published in DOI: 10.1016/j.physc.2009.11.073 DOI: 10.1038/NPHYS1109 Data are listed in the archive as follows Fig??_HxxTyyphizz.dat where ?? = the figure number, xx = the applied magnetic field value in Tesla, yy = the sample temperature in kelvin, and zz = the azimuthal angle in degrees.
Date of first compliant deposit:	23 July 2021
Date of first compliant Open Access:	29 July 2021
RIOXX Funder/Project Grant:	Project/Grant ID RIOXX Funder Name Funder ID DMR-1644779 National Science Foundation http://dx.doi.org/10.13039/501100008982 Grant Agreement No. 681260 H2020 European Research Council http://dx.doi.org/10.13039/100010663 MRSEC DMR-1720595 National Science Foundation http://dx.doi.org/10.13039/501100008982 NSERC; PIN: 123817 [NSERC] Natural Sciences and Engineering Research Council of Canada http://dx.doi.org/10.13039/501100000038 UNSPECIFIED Canada First Research Excellence Fund http://dx.doi.org/10.13039/501100010785 Grant GBMF5306 to L.T. Gordon and Betty Moore Foundation http://dx.doi.org/10.13039/100000936 DMR-1752784 National Science Foundation http://dx.doi.org/10.13039/501100008982
Related URLs:	Related item in WRAP Other
Contributors:	Contribution Name Contributor ID Depositor Goddard, Paul 55678

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