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Title: Origin of the extremely large magnetoresistance in the semimetal YSb

Abstract

Extremely large magnetoresistance (XMR) was recently discovered in YSb but its origin, along with that of many other XMR materials, is an active subject of debate. Here we demonstrate that YSb, with a cubic crystalline lattice and anisotropic bulk electron Fermi pockets, can be an excellent candidate for revealing the origin of XMR. We carried out angle dependent Shubnikov – de Haas quantum oscillation measurements to determine the volume and shape of the Fermi pockets. In addition, by investigating both Hall and longitudinal magnetoresistivities, we reveal that the origin of XMR in YSb lies in its carrier high mobility with a diminishing Hall factor that is obtained from the ratio of the Hall and longitudinal magentoresistivities. The high mobility leads to a strong magnetic field dependence of the longitudinal magnetoconductivity while a diminishing Hall factor reveals the latent XMR hidden in the longitudinal magnetoconductivity whose inverse has a nearly quadratic magnetic-field dependence. The Hall factor highlights the deviation of the measured magnetoresistivity from its full potential value and provides a general formulation to reveal the origin of XMR behavior in high mobility materials and of nonsaturating MR behavior as a whole. Our approach can be readily applied to other XMRmore » materials.« less

Authors:
 [1];  [2];  [2];  [1];  [2];  [3];  [4];  [2];  [2]
  1. Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division; Northern Illinois Univ., DeKalb, IL (United States). Dept. of Physics
  2. Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division
  3. Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division; Univ. of Notre Dame, IN (United States). Dept. of Physics
  4. Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division; Univ. of Illinois, Chicago, IL (United States). Dept. of Physics
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); National Science Foundation (NSF)
OSTI Identifier:
1393826
Alternate Identifier(s):
OSTI ID: 1377640
Grant/Contract Number:  
AC02-06CH11357; DMR-1407175
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 96; Journal Issue: 7; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Xu, J., Ghimire, N. J., Jiang, J. S., Xiao, Z. L., Botana, A. S., Wang, Y. L., Hao, Y., Pearson, J. E., and Kwok, W. K. Origin of the extremely large magnetoresistance in the semimetal YSb. United States: N. p., 2017. Web. doi:10.1103/PhysRevB.96.075159.
Xu, J., Ghimire, N. J., Jiang, J. S., Xiao, Z. L., Botana, A. S., Wang, Y. L., Hao, Y., Pearson, J. E., & Kwok, W. K. Origin of the extremely large magnetoresistance in the semimetal YSb. United States. doi:10.1103/PhysRevB.96.075159.
Xu, J., Ghimire, N. J., Jiang, J. S., Xiao, Z. L., Botana, A. S., Wang, Y. L., Hao, Y., Pearson, J. E., and Kwok, W. K. Tue . "Origin of the extremely large magnetoresistance in the semimetal YSb". United States. doi:10.1103/PhysRevB.96.075159. https://www.osti.gov/servlets/purl/1393826.
@article{osti_1393826,
title = {Origin of the extremely large magnetoresistance in the semimetal YSb},
author = {Xu, J. and Ghimire, N. J. and Jiang, J. S. and Xiao, Z. L. and Botana, A. S. and Wang, Y. L. and Hao, Y. and Pearson, J. E. and Kwok, W. K.},
abstractNote = {Extremely large magnetoresistance (XMR) was recently discovered in YSb but its origin, along with that of many other XMR materials, is an active subject of debate. Here we demonstrate that YSb, with a cubic crystalline lattice and anisotropic bulk electron Fermi pockets, can be an excellent candidate for revealing the origin of XMR. We carried out angle dependent Shubnikov – de Haas quantum oscillation measurements to determine the volume and shape of the Fermi pockets. In addition, by investigating both Hall and longitudinal magnetoresistivities, we reveal that the origin of XMR in YSb lies in its carrier high mobility with a diminishing Hall factor that is obtained from the ratio of the Hall and longitudinal magentoresistivities. The high mobility leads to a strong magnetic field dependence of the longitudinal magnetoconductivity while a diminishing Hall factor reveals the latent XMR hidden in the longitudinal magnetoconductivity whose inverse has a nearly quadratic magnetic-field dependence. The Hall factor highlights the deviation of the measured magnetoresistivity from its full potential value and provides a general formulation to reveal the origin of XMR behavior in high mobility materials and of nonsaturating MR behavior as a whole. Our approach can be readily applied to other XMR materials.},
doi = {10.1103/PhysRevB.96.075159},
journal = {Physical Review B},
number = 7,
volume = 96,
place = {United States},
year = {Tue Aug 29 00:00:00 EDT 2017},
month = {Tue Aug 29 00:00:00 EDT 2017}
}

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