Spin-wave dispersion in orbitally ordered La1/2Sr3/2MnO4

D  Senff; F  Kruger; S  Scheidl; M  Benomar; Y  Sidis; F  Demmel; M  Braden

doi:10.1103/PhysRevLett.96.257201

Spin-wave dispersion in orbitally ordered La1/2Sr3/2MnO4

D Senff, F Kruger, S Scheidl, M Benomar, Y Sidis, F Demmel, M Braden

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

28 Citations (Scopus)

Abstract

The magnon dispersion in the charge, orbital, and spin ordered phase in La1/2Sr3/2MnO4 has been studied by means of inelastic neutron scattering. We find excellent agreement with a magnetic interaction model based on the CE-type superstructure. The magnetic excitations are dominated by ferromagnetic exchange parameters revealing a nearly one-dimensional character at high energies. The strong ferromagnetic interaction in the charge or orbital ordered phase appears to be essential for the capability of manganites to switch between metallic and insulating phases.

Original language	English
Pages (from-to)	257201
Number of pages	4
Journal	Physical Review Letters
Volume	96
Issue number	25
DOIs	https://doi.org/10.1103/PhysRevLett.96.257201
Publication status	Published - 30 Jun 2006

Keywords

NEUTRON-DIFFRACTION
MANGANITES
CHARGE
SCATTERING
LA0.5SR1.5MNO4
LA1-XSR1+XMNO4
TRANSITION
OXIDES
ZONE

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title = "Spin-wave dispersion in orbitally ordered La1/2Sr3/2MnO4",

abstract = "The magnon dispersion in the charge, orbital, and spin ordered phase in La1/2Sr3/2MnO4 has been studied by means of inelastic neutron scattering. We find excellent agreement with a magnetic interaction model based on the CE-type superstructure. The magnetic excitations are dominated by ferromagnetic exchange parameters revealing a nearly one-dimensional character at high energies. The strong ferromagnetic interaction in the charge or orbital ordered phase appears to be essential for the capability of manganites to switch between metallic and insulating phases.",

keywords = "NEUTRON-DIFFRACTION, MANGANITES, CHARGE, SCATTERING, LA0.5SR1.5MNO4, LA1-XSR1+XMNO4, TRANSITION, OXIDES, ZONE",

author = "D Senff and F Kruger and S Scheidl and M Benomar and Y Sidis and F Demmel and M Braden",

year = "2006",

month = jun,

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doi = "10.1103/PhysRevLett.96.257201",

language = "English",

volume = "96",

pages = "257201",

journal = "Physical Review Letters",

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T1 - Spin-wave dispersion in orbitally ordered La1/2Sr3/2MnO4

AU - Senff, D

AU - Kruger, F

AU - Scheidl, S

AU - Benomar, M

AU - Sidis, Y

AU - Demmel, F

AU - Braden, M

PY - 2006/6/30

Y1 - 2006/6/30

N2 - The magnon dispersion in the charge, orbital, and spin ordered phase in La1/2Sr3/2MnO4 has been studied by means of inelastic neutron scattering. We find excellent agreement with a magnetic interaction model based on the CE-type superstructure. The magnetic excitations are dominated by ferromagnetic exchange parameters revealing a nearly one-dimensional character at high energies. The strong ferromagnetic interaction in the charge or orbital ordered phase appears to be essential for the capability of manganites to switch between metallic and insulating phases.

AB - The magnon dispersion in the charge, orbital, and spin ordered phase in La1/2Sr3/2MnO4 has been studied by means of inelastic neutron scattering. We find excellent agreement with a magnetic interaction model based on the CE-type superstructure. The magnetic excitations are dominated by ferromagnetic exchange parameters revealing a nearly one-dimensional character at high energies. The strong ferromagnetic interaction in the charge or orbital ordered phase appears to be essential for the capability of manganites to switch between metallic and insulating phases.

KW - NEUTRON-DIFFRACTION

KW - MANGANITES

KW - CHARGE

KW - SCATTERING

KW - LA0.5SR1.5MNO4

KW - LA1-XSR1+XMNO4

KW - TRANSITION

KW - OXIDES

KW - ZONE

U2 - 10.1103/PhysRevLett.96.257201

DO - 10.1103/PhysRevLett.96.257201

M3 - Article

SN - 0031-9007

VL - 96

SP - 257201

JO - Physical Review Letters

JF - Physical Review Letters

IS - 25

ER -

Spin-wave dispersion in orbitally ordered La1/2Sr3/2MnO4

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Keywords

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