English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We studied the crystal and magnetic structure of theLa$_{1-x}$Ca$_{x}$MnO$_{3}$ compound for $(0.11\leq x\leq 0.175)$ usingstoichiometric samples. For $x<0.13$ the system's ground state is insulatingcanted antiferromagnetic. For $0.13\le x \le 0.175$ e below the Jahn Tellertransition temperature ($T_{\rm JT}$) the crystal structure undergoes amonoclinic distortion. The crystal structure can be described with $P 2_1/c$space group which permits two Mn sites. The unit cell strain parameter$s=2(a-c)/(a+c)$ increases for $T<T_{\rm JT}$, taking the maximum value at theCurie point, and then decreases. Below $T_{\rm M^/M^{//}}\approx 60 $ K $s$abruptly changes slope and finally approaches T=0 K with nearly zero slope. Thechange of $s$ at $T_{\rm M^/M^{//}}$ is connected to a characteristic featurein the magnetic measurements. As $x$ increases towards the ferromagneticmetallic boundary, although $s$ is reduced appreciably, the monoclinicstructure is preserved. The monoclinic structure is discussed with relation tothe orbital ordering, which can produce the ferromagnetic insulating groundstate. We also studied samples that were prepared in air atmosphere. Thiscategory of samples shows ferromagnetic insulating behavior without followingthe particular variation of the $s$ parameter. The crystal structure of thesesamples is related to the so-called O$^{*}$ ($c>a>b/\sqrt{2}$) structure

physical review. b, condensed matter and materials physics

Crystal and magnetic structure of the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mi>La</mml:mi><mml:mrow><mml:mn>1</mml:mn><mml:mo>−</mml:mo><mml:mi>x</mml:mi></mml:mrow></mml:msub><mml:msub><mml:mi>Ca</mml:mi><mml:mi>x</mml:mi></mml:msub><mml:msub><mml:mi>MnO</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:mrow></mml:math>compound<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mo>(</mml:mo><mml:mn>0.11</…

Crystal and magnetic structure of theLa1−xCaxMnO3compound(0.11