Crystal growth and characterisation of (DyxLa1-x)(2)Ti2O7 crystals

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F20%3A00533862" target="_blank" >RIV/68081723:_____/20:00533862 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216305:26620/20:PU139264

Výsledek na webu

<a href="http://www.elis.sk/index.php?page=shop.product_details&flypage=flypage.tpl&product_id=6595&category_id=162&option=com_virtuemart&vmcchk=1&Itemid=1" target="_blank" >http://www.elis.sk/index.php?page=shop.product_details&flypage=flypage.tpl&product_id=6595&category_id=162&option=com_virtuemart&vmcchk=1&Itemid=1</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4149/km_2020_1_59" target="_blank" >10.4149/km_2020_1_59</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Crystal growth and characterisation of (DyxLa1-x)(2)Ti2O7 crystals

Popis výsledku v původním jazyce

LaTiO3.5 crystals were grown by optical floating zone technique in air, O-2, or Ar. Crystal structure varies between orthorhombic Pna2(1) (air, O-2) and monoclinic P2(1) (Ar). Crystals are transparent (air, O-2) or opaque (Ar) with amber or black colour. Magnetisation resembles the properties of LaTiO3.5. (DyxLa1-x)(2)Ti2O7 crystals were grown in O-2. The solubility of dopant (La or Dy) in the parent compound is limited. Two phases with Pna2(1) and Fd (3) over barm structure coexist in the range from x = 0.32 to 0.68. The a-axis of Pna2(1) is intact by substitution of La3+ by Dy3+, both b - and c-axes decrease. The a-axis of Fd (3) over barm increases with substitution of Dy3+ by La3+ and the spin freezing temperature T-f shifts to a higher temperature. Either of the new magnetic phase (Pna2(1) structure) or dynamical behaviour of spins in Fd (3) over barm phase exists below x = 0.68 in the range between the transition to 'spin ice' state T-i and T-f.

Název v anglickém jazyce

Crystal growth and characterisation of (DyxLa1-x)(2)Ti2O7 crystals

Popis výsledku anglicky

LaTiO3.5 crystals were grown by optical floating zone technique in air, O-2, or Ar. Crystal structure varies between orthorhombic Pna2(1) (air, O-2) and monoclinic P2(1) (Ar). Crystals are transparent (air, O-2) or opaque (Ar) with amber or black colour. Magnetisation resembles the properties of LaTiO3.5. (DyxLa1-x)(2)Ti2O7 crystals were grown in O-2. The solubility of dopant (La or Dy) in the parent compound is limited. Two phases with Pna2(1) and Fd (3) over barm structure coexist in the range from x = 0.32 to 0.68. The a-axis of Pna2(1) is intact by substitution of La3+ by Dy3+, both b - and c-axes decrease. The a-axis of Fd (3) over barm increases with substitution of Dy3+ by La3+ and the spin freezing temperature T-f shifts to a higher temperature. Either of the new magnetic phase (Pna2(1) structure) or dynamical behaviour of spins in Fd (3) over barm phase exists below x = 0.68 in the range between the transition to 'spin ice' state T-i and T-f.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Kovové materiály

ISSN

0023-432X

e-ISSN

—

Svazek periodika

58

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

SK - Slovenská republika

Počet stran výsledku

12

Strana od-do

59-70

Kód UT WoS článku

000514823200007

EID výsledku v databázi Scopus

2-s2.0-85084242634