Anisotropic magnetoresistance in the itinerant antiferromagnetic EuTi O3

Kaveh Ahadi, Xuezeng Lu, Salva Salmani-Rezaie, Patrick B. Marshall, James M Rondinelli, Susanne Stemmer

Research output: Contribution to journalArticle

Abstract

We report on measurements of the anisotropic magnetoresistance (AMR) of doped EuTiO3. It is shown that the primary contribution to the AMR is the crystalline component, which depends on the relative orientation between the magnetic moments and the crystal axes. With increasing magnetic field, a fourfold crystalline AMR undergoes a change in its alignment with respect to the crystal axes. The results are discussed in the context of the coupling between spin canting, electronic structure, and transport. We discuss the potential role of Weyl points in the band structure. At high fields, the AMR transitions to uniaxial symmetry, which is lower than that of the lattice, along with a crossover from positive to negative magnetoresistance.

LanguageEnglish (US)
Article number041106
JournalPhysical Review B
Volume99
Issue number4
DOIs
StatePublished - Jan 7 2019

Fingerprint

Enhanced magnetoresistance
crystals
crossovers
magnetic moments
alignment
electronic structure
Crystalline materials
Crystals
symmetry
Magnetoresistance
Electron transitions
Magnetic moments
magnetic fields
Crystal orientation
Band structure
Electronic structure
Magnetic fields

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Ahadi, Kaveh ; Lu, Xuezeng ; Salmani-Rezaie, Salva ; Marshall, Patrick B. ; Rondinelli, James M ; Stemmer, Susanne. / Anisotropic magnetoresistance in the itinerant antiferromagnetic EuTi O3. In: Physical Review B. 2019 ; Vol. 99, No. 4.
@article{8e5bdec42ab7493184a75bed88c933a7,
title = "Anisotropic magnetoresistance in the itinerant antiferromagnetic EuTi O3",
abstract = "We report on measurements of the anisotropic magnetoresistance (AMR) of doped EuTiO3. It is shown that the primary contribution to the AMR is the crystalline component, which depends on the relative orientation between the magnetic moments and the crystal axes. With increasing magnetic field, a fourfold crystalline AMR undergoes a change in its alignment with respect to the crystal axes. The results are discussed in the context of the coupling between spin canting, electronic structure, and transport. We discuss the potential role of Weyl points in the band structure. At high fields, the AMR transitions to uniaxial symmetry, which is lower than that of the lattice, along with a crossover from positive to negative magnetoresistance.",
author = "Kaveh Ahadi and Xuezeng Lu and Salva Salmani-Rezaie and Marshall, {Patrick B.} and Rondinelli, {James M} and Susanne Stemmer",
year = "2019",
month = "1",
day = "7",
doi = "10.1103/PhysRevB.99.041106",
language = "English (US)",
volume = "99",
journal = "Physical Review B",
issn = "2469-9950",
number = "4",

}

Ahadi, K, Lu, X, Salmani-Rezaie, S, Marshall, PB, Rondinelli, JM & Stemmer, S 2019, 'Anisotropic magnetoresistance in the itinerant antiferromagnetic EuTi O3', Physical Review B, vol. 99, no. 4, 041106. https://doi.org/10.1103/PhysRevB.99.041106

Anisotropic magnetoresistance in the itinerant antiferromagnetic EuTi O3. / Ahadi, Kaveh; Lu, Xuezeng; Salmani-Rezaie, Salva; Marshall, Patrick B.; Rondinelli, James M; Stemmer, Susanne.

In: Physical Review B, Vol. 99, No. 4, 041106, 07.01.2019.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Anisotropic magnetoresistance in the itinerant antiferromagnetic EuTi O3

AU - Ahadi, Kaveh

AU - Lu, Xuezeng

AU - Salmani-Rezaie, Salva

AU - Marshall, Patrick B.

AU - Rondinelli, James M

AU - Stemmer, Susanne

PY - 2019/1/7

Y1 - 2019/1/7

N2 - We report on measurements of the anisotropic magnetoresistance (AMR) of doped EuTiO3. It is shown that the primary contribution to the AMR is the crystalline component, which depends on the relative orientation between the magnetic moments and the crystal axes. With increasing magnetic field, a fourfold crystalline AMR undergoes a change in its alignment with respect to the crystal axes. The results are discussed in the context of the coupling between spin canting, electronic structure, and transport. We discuss the potential role of Weyl points in the band structure. At high fields, the AMR transitions to uniaxial symmetry, which is lower than that of the lattice, along with a crossover from positive to negative magnetoresistance.

AB - We report on measurements of the anisotropic magnetoresistance (AMR) of doped EuTiO3. It is shown that the primary contribution to the AMR is the crystalline component, which depends on the relative orientation between the magnetic moments and the crystal axes. With increasing magnetic field, a fourfold crystalline AMR undergoes a change in its alignment with respect to the crystal axes. The results are discussed in the context of the coupling between spin canting, electronic structure, and transport. We discuss the potential role of Weyl points in the band structure. At high fields, the AMR transitions to uniaxial symmetry, which is lower than that of the lattice, along with a crossover from positive to negative magnetoresistance.

UR - http://www.scopus.com/inward/record.url?scp=85059894471&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85059894471&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.99.041106

DO - 10.1103/PhysRevB.99.041106

M3 - Article

VL - 99

JO - Physical Review B

T2 - Physical Review B

JF - Physical Review B

SN - 2469-9950

IS - 4

M1 - 041106

ER -