skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Magnetotransport of multiple-band nearly antiferromagnetic metals due to hot-spot scattering

Journal Article · · Physical Review B
 [1]
  1. Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division
+ Show Author Affiliations

Multiple-band electronic structure and proximity to antiferromagnetic (AF) instability are the key properties of iron-based superconductors. In this paper, we explore the influence of scattering by the AF spin fluctuations on transport of multiple-band metals above the magnetic transition. A salient feature of scattering on the AF fluctuations is that it is strongly enhanced at the Fermi surface locations where the nesting is perfect (“hot spots” or “hot lines”). We review derivation of the collision integral for the Boltzmann equation due to AF-fluctuations scattering. In the paramagnetic state, the enhanced scattering rate near the hot lines leads to anomalous behavior of electronic transport in magnetic field. We explore this behavior by analytically solving the Boltzmann transport equation with approximate transition rates. This approach accounts for return scattering events and is more accurate than the relaxation-time approximation. The magnetic-field dependences are characterized by two very different field scales: the lower scale is set by the hot-spot width and the higher scale is set by the total scattering amplitude. A conventional magnetotransport behavior is limited to magnetic fields below the lower scale. In the wide range in-between these two scales, the longitudinal conductivity has linear dependence on the magnetic field and the Hall conductivity has quadratic dependence. The linear dependence of the diagonal component reflects growth of the Fermi-surface area affected by the hot spots proportional to the magnetic field. Finally, we discuss applicability of this theoretical framework for describing of anomalous magnetotransport properties in different iron pnictides and chalcogenides in the paramagnetic state.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1352674
Alternate ID(s):
OSTI ID: 1327557
Journal Information:
Physical Review B, Vol. 94, Issue 12; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 5 works
Citation information provided by
Web of Science

References (30)

Transport anomalies due to anisotropic interband scattering journal August 2013
Doping dependence of Hall coefficient and evolution of coherent electronic state in the normal state of the Fe-based superconductor Ba 1 − x K x Fe 2 As 2 journal February 2012
Hall effect in superconducting Fe ( Se 0.5 Te 0.5 ) thin films journal February 2010
Anisotropic scattering and anomalous normal-state transport in a high-temperature superconductor journal November 2006
Resistivity as a function of temperature for models with hot spots on the Fermi surface journal April 1995
Evidence of quantum criticality in the phase diagram of K x Sr 1 − x Fe 2 As 2 from measurements of transport and thermoelectricity journal March 2009
Magnetotransport of proton-irradiated BaFe 2 As 2 and BaFe 1.985 Co 0.015 As 2 single crystals journal February 2015
Evolution from non-Fermi- to Fermi-liquid transport via isovalent doping in BaFe 2 ( As 1 − x P x ) 2 superconductors journal May 2010
Theory of the longitudinal and Hall conductivities of the cuprate superconductors journal April 1997
Anisotropic In-Plane Resistivity in the Nematic Phase of the Iron Pnictides journal November 2011
A Quantum Critical Point Lying Beneath the Superconducting Dome in Iron Pnictides journal March 2014
Fermi-liquid instabilities at magnetic quantum phase transitions journal August 2007
Iron-based superconductors: Current status of materials and pairing mechanism journal July 2015
Impurity effects on the normal-state transport properties of Ba 0.5 K 0.5 Fe 2 As 2 superconductors journal July 2014
Multiband effects and possible Dirac fermions in Fe 1 + y Te 0.6 Se 0.4 journal April 2014
Linear magnetoconductivity in multiband spin-density-wave metals with nonideal nesting journal August 2013
Theory of low-temperature Hall effect in electron-doped cuprates journal December 2005
Hall Effect and Resistivity Study of the Magnetic Transition, Carrier Content, and Fermi-Liquid Behavior in Ba ( Fe 1 − x Co x ) 2 As 2 journal July 2009
High-temperature superconductivity in iron-based materials journal August 2010
Transport near a quantum critical point in BaFe2(As1−xPx)2 journal January 2014
Superconductivity in iron compounds journal December 2011
Anomalous transport phenomena in Fermi liquids with strong magnetic fluctuations journal January 2008
Dichotomy between the Hole and Electron Behavior in Multiband Superconductor FeSe Probed by Ultrahigh Magnetic Fields journal July 2015
Sign-reversal of the in-plane resistivity anisotropy in hole-doped iron pnictides journal May 2013
Hole and electron contributions to the transport properties of Ba ( Fe 1 − x Ru x ) 2 As 2 single crystals journal June 2010
The Boltzmann equation for conduction electrons journal September 1963
Evolution of transport properties of BaFe 2 − x Ru x As 2 in a wide range of isovalent Ru substitution journal January 2012
Transport in multiband systems with hot spots on the Fermi surface: Forward-scattering corrections journal June 2014
Magnetotransport in nearly antiferromagnetic metals journal August 2000
Effect of Magnetic Fields on Conduction—"Tube Integrals" journal July 1950

Cited By (2)

Magnetotransport studies of optimally doped Sr(Fe 1− x Co x ) 2 As 2 journal November 2018
Magnetotransport studies of optimally doped Sr(Fe${_{1-x}}$Co${_x}$)${_2}$As${_2}$ text January 2018

Similar Records

Magnetotransport in a Model of a Disordered Strange Metal
Journal Article · Tue May 22 00:00:00 EDT 2018 · Physical Review. X · OSTI ID:1352674
+1 more
SISGR: Atom chip microscopy: A novel probe for strongly correlated materials
Technical Report · Sat May 31 00:00:00 EDT 2014 · OSTI ID:1352674
Magnetocaloric and magnetotransport properties on R2Ni2Sn compounds (R=Ce, Nd, Sm, Gd, and Tb)
Journal Article · Mon May 12 00:00:00 EDT 2008 · Physical Review B · OSTI ID:1352674
+1 more

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY