Mapping of reciprocal space of La0.30CoO2 in 3D: analysis of superstructure diffractions and intergrowths with Co3O4./sub

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388980%3A_____%2F15%3A00451487" target="_blank" >RIV/61388980:_____/15:00451487 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/15:00451487

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.jssc.2015.03.016" target="_blank" >http://dx.doi.org/10.1016/j.jssc.2015.03.016</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jssc.2015.03.016" target="_blank" >10.1016/j.jssc.2015.03.016</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Mapping of reciprocal space of La0.30CoO2 in 3D: analysis of superstructure diffractions and intergrowths with Co3O4./sub

Popis výsledku v původním jazyce

We have used electron diffraction tomography and powder X-ray diffraction to elucidate the structural properties of layered cobaltate g-La0.30CoO2. The structure consists of hexagonal sheets of edge-sharing CoO6 octahedra interleaved by lanthanum monolayers. The La3+ cations occupy only one third of available P2 sites, forming a 2-dimensional a^(1/3) a^(1/3) superstructure in a-b plane. The results show that there exists no order in the mutual relative shift between the neighbouring La interlayers within the a-b plane. This is manifested in the observed monotonous decrease of the diffracted in tensity of the superstructure diffractions along c* in both X-ray and electron diffraction data. The observed lack of stacking order differentiates the LaxCoO2 from its Ca and Sr analogues where at least a partial stacking order of the cationic interlayers is manifested in experimental data published in literature.

Název v anglickém jazyce

Mapping of reciprocal space of La0.30CoO2 in 3D: analysis of superstructure diffractions and intergrowths with Co3O4./sub

Popis výsledku anglicky

We have used electron diffraction tomography and powder X-ray diffraction to elucidate the structural properties of layered cobaltate g-La0.30CoO2. The structure consists of hexagonal sheets of edge-sharing CoO6 octahedra interleaved by lanthanum monolayers. The La3+ cations occupy only one third of available P2 sites, forming a 2-dimensional a^(1/3) a^(1/3) superstructure in a-b plane. The results show that there exists no order in the mutual relative shift between the neighbouring La interlayers within the a-b plane. This is manifested in the observed monotonous decrease of the diffracted in tensity of the superstructure diffractions along c* in both X-ray and electron diffraction data. The observed lack of stacking order differentiates the LaxCoO2 from its Ca and Sr analogues where at least a partial stacking order of the cationic interlayers is manifested in experimental data published in literature.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

—

Projekt

<a href="/cs/project/GA13-03708S" target="_blank" >GA13-03708S: Elektrický transport a magnetismus v nových vrstevnatých kobaltátech se vzácnými zeminami</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Solid State Chemistry

ISSN

0022-4596

e-ISSN

—

Svazek periodika

227

Číslo periodika v rámci svazku

Jul

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

5

Strana od-do

30-34

Kód UT WoS článku

000355639500006

EID výsledku v databázi Scopus

2-s2.0-84926226458