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Magnetic polarons and spin-glass behavior in insulating <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>La</mml:mi><mml:mrow><mml:mn>1</mml:mn><mml:mtext>−</mml:mtext><mml:mi>x</mml:mi></mml:mrow></mml:msub><mml:msub><mml:mi>Sr</mml:mi><mml:mi>x</mml:mi></mml:msub><mml:mi>Co</mml:mi><mml:msub><mml:mi mathvariant="normal">O</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:mrow></mml:math> (<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>x</mml:mi><mml:mo>=</mml:mo><mml:mn>0.125</mml:mn></mml:mrow></mml:math> and 0.15)

P. Anil Kumar, Abhishek Nag, R. Mathieu, Ranjan Das, Sugata Ray, П. Нордблад, Akmal Hossain, Dona Cherian, Diego Alba Venero, Lisa DeBeer‐Schmitt, Olof Karis, D. D. Sarma

2020Physical Review Research19 citationsDOIOpen Access PDF

Abstract

This article presents experimental magnetic data to show the existence of magnetic polarons far above the spin-glass ordering temperature in Sr doped LaCoO${}_{3}$. These polarons grow in size as the temperature approaches the ordering temperature.

Topics & Concepts

PolaronSpin glassCondensed matter physicsSpin (aerodynamics)Materials sciencePhysicsThermodynamicsQuantum mechanicsElectronMagnetic and transport properties of perovskites and related materialsAdvanced Condensed Matter PhysicsPhysics of Superconductivity and Magnetism
Magnetic polarons and spin-glass behavior in insulating <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>La</mml:mi><mml:mrow><mml:mn>1</mml:mn><mml:mtext>−</mml:mtext><mml:mi>x</mml:mi></mml:mrow></mml:msub><mml:msub><mml:mi>Sr</mml:mi><mml:mi>x</mml:mi></mml:msub><mml:mi>Co</mml:mi><mml:msub><mml:mi mathvariant="normal">O</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:mrow></mml:math> (<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>x</mml:mi><mml:mo>=</mml:mo><mml:mn>0.125</mml:mn></mml:mrow></mml:math> and 0.15) | Litcius