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Title: Possible scale invariant linear magnetoresistance in pyrochlore iridates Bi 2Ir 2O 7

Abstract

We report the observation of a linear magnetoresistance in single crystals and epitaxial thin films of the pyrochlore iridate Bi 2Ir 2O 7. The linear magnetoresistance is positive and isotropic at low temperatures, without any sign of saturation up to 35 T. As temperature increases, the linear field dependence gradually evolves to a quadratic field dependence. The temperature and field dependence of magnetoresistance of Bi 2Ir 2O 7 bears strikingly resemblance to the scale invariant magnetoresistance observed in the strange metal phase in high Tc cuprates. However, the residual resistivity of Bi 2Ir 2O 7 is more than two orders of magnitude higher than the curpates. Our results suggest that the correlation between linear magnetoresistance and quantum fluctuations may exist beyond high temperature superconductors.

Authors:
ORCiD logo [1];  [2];  [3];  [3];  [4];  [4];  [5];  [6];  [7];  [8];  [9];  [10];  [11];  [5];  [4];  [11]
  1. Univ. of California, Berkeley, CA (United States). Dept. of Physics; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Materials Sciences Division; Univ. of Washington, Seattle, WA (United States)
  2. Univ. of California, Berkeley, CA (United States). Dept. of Physics; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Materials Sciences Division; Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics and Astronomy
  3. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics and Astronomy
  4. Stanford Univ., CA (United States). Geballe Lab. for Advanced Materials; SLAC National Accelerator Lab., Menlo Park, CA (United States)
  5. Univ. of California, Berkeley, CA (United States)
  6. Stanford Univ., CA (United States). Geballe Lab. for Advanced Materials; Univ. of California, Berkeley, CA (United States)
  7. Univ. of California, Berkeley, CA (United States). Dept. of Physics
  8. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Materials Sciences Division
  9. Inst. de Ciencia de Materials de Barcelona, ICMAB-CSIC, Ballaterra (Spain)
  10. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)
  11. Univ. of California, Berkeley, CA (United States). Dept. of Physics; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Materials Sciences Division
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1597485
Grant/Contract Number:  
[AC02-76SF00515; AC02-06CH11357; AC02-05CH11231; DMR-1157490]
Resource Type:
Accepted Manuscript
Journal Name:
New Journal of Physics
Additional Journal Information:
[ Journal Volume: 21; Journal Issue: 11]; Journal ID: ISSN 1367-2630
Publisher:
IOP Publishing
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; pyrochlore iridates; scale invariance; linear magnetoresistance

Citation Formats

Chu, Jiun-Haw, Liu, Jian, Zhang, Han, Noordhoek, Kyle, Riggs, Scott C., Shapiro, Maxwell, Serro, Claudy Ryan, Yi, Di, Mellisa, M., Suresha, S. J., Frontera, C., Arenholz, E., Vishwanath, Ashvin, Marti, Xavi, Fisher, I. R., and Ramesh, R. Possible scale invariant linear magnetoresistance in pyrochlore iridates Bi2Ir2O7. United States: N. p., 2019. Web. doi:10.1088/1367-2630/ab534c.
Chu, Jiun-Haw, Liu, Jian, Zhang, Han, Noordhoek, Kyle, Riggs, Scott C., Shapiro, Maxwell, Serro, Claudy Ryan, Yi, Di, Mellisa, M., Suresha, S. J., Frontera, C., Arenholz, E., Vishwanath, Ashvin, Marti, Xavi, Fisher, I. R., & Ramesh, R. Possible scale invariant linear magnetoresistance in pyrochlore iridates Bi2Ir2O7. United States. doi:10.1088/1367-2630/ab534c.
Chu, Jiun-Haw, Liu, Jian, Zhang, Han, Noordhoek, Kyle, Riggs, Scott C., Shapiro, Maxwell, Serro, Claudy Ryan, Yi, Di, Mellisa, M., Suresha, S. J., Frontera, C., Arenholz, E., Vishwanath, Ashvin, Marti, Xavi, Fisher, I. R., and Ramesh, R. Wed . "Possible scale invariant linear magnetoresistance in pyrochlore iridates Bi2Ir2O7". United States. doi:10.1088/1367-2630/ab534c. https://www.osti.gov/servlets/purl/1597485.
@article{osti_1597485,
title = {Possible scale invariant linear magnetoresistance in pyrochlore iridates Bi2Ir2O7},
author = {Chu, Jiun-Haw and Liu, Jian and Zhang, Han and Noordhoek, Kyle and Riggs, Scott C. and Shapiro, Maxwell and Serro, Claudy Ryan and Yi, Di and Mellisa, M. and Suresha, S. J. and Frontera, C. and Arenholz, E. and Vishwanath, Ashvin and Marti, Xavi and Fisher, I. R. and Ramesh, R.},
abstractNote = {We report the observation of a linear magnetoresistance in single crystals and epitaxial thin films of the pyrochlore iridate Bi2Ir2O7. The linear magnetoresistance is positive and isotropic at low temperatures, without any sign of saturation up to 35 T. As temperature increases, the linear field dependence gradually evolves to a quadratic field dependence. The temperature and field dependence of magnetoresistance of Bi2Ir2O7 bears strikingly resemblance to the scale invariant magnetoresistance observed in the strange metal phase in high Tc cuprates. However, the residual resistivity of Bi2Ir2O7 is more than two orders of magnitude higher than the curpates. Our results suggest that the correlation between linear magnetoresistance and quantum fluctuations may exist beyond high temperature superconductors.},
doi = {10.1088/1367-2630/ab534c},
journal = {New Journal of Physics},
number = [11],
volume = [21],
place = {United States},
year = {2019},
month = {11}
}

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