Reduction of critical field for magnetic and orbital-ordering phase transition in impurity-substituted Nd0.45Sr0.55MnO3 crystal

Y. Izuchi; M. Akaki; D. Akahoshi; H. Kuwahara

doi:10.1063/1.4866050

APL Materials (Feb 2014)

Reduction of critical field for magnetic and orbital-ordering phase transition in impurity-substituted Nd0.45Sr0.55MnO3 crystal

Y. Izuchi,
M. Akaki,
D. Akahoshi,
H. Kuwahara

Affiliations

Y. Izuchi: Department of Physics, Sophia University, Tokyo 102-8554, Japan
M. Akaki: The Institute for Solid State Physics, The University of Tokyo, Kashiwa 277-8581, Japan
D. Akahoshi: Department of Physics, Toho University, Funabashi 274-8510, Japan
H. Kuwahara: Department of Physics, Sophia University, Tokyo 102-8554, Japan

DOI: https://doi.org/10.1063/1.4866050
Journal volume & issue: Vol. 2, no. 2
pp. 022106 – 022106-7

Abstract

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We have investigated the Mn-site substitution effect in Nd0.45Sr0.55MnO3 single crystal, which has an A-type layered antiferromagnetic (A-AFM) phase with the 3dx2−y2-type orbital-order. Substitution of Fe or Ga for Mn-site suppresses both the A-AFM order and competing ferromagnetic (FM) correlation, whereas Cr substitution suppresses only the A-AFM order but reactivates the underlying FM correlation via double-exchange mechanism along the AFM coupled c-direction. In Nd0.45Sr0.55Mn0.95Cr0.05O3, the A-AFM state with the orbital-order is changed into the orbital-disordered three-dimensional FM metallic state by applying magnetic field of μ0H = 12 T, which is much smaller than that of the parent compound Nd0.45Sr0.55MnO3.

Published in APL Materials

ISSN: 2166-532X (Online)
Publisher: AIP Publishing LLC
Country of publisher: United States
LCC subjects: Technology: Chemical technology: Biotechnology; Science: Physics
Website: http://aplmaterials.aip.org

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