Electric and dielectric properties of monoclinic BaR2F8 (R=rare earth elements) single crystals

ABSTRACTWe report the growth of single crystals by a flux method in ambient pressure and tri-axial orientation under modulated rotation magnetic fields (MRFs) on REBa2Cu4O8 (RE124, RE; rare earth elements) compounds. RE124 crystals were grown for RE = Y, Sm, Eu, Gd, Dy, Ho, Er, Tm, and Yb through appropriate choice of source compounds. All the obtained RE124 powders were tri-axially aligned in MRF of 10T, whereas magnetization axes depended on the type of RE. Moreover, it was found from the changes in the degrees of c-axis and inplane orientation that tri-axial magnetic anisotropies of RE124 also depended on the type of RE. This indicates that it appropriate choice of RE is important for the fabrication of tri-axial oriented ceramics in lower magnetic field conditions.

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Combining two redox active rare earth elements for oxygen storage – electrical properties and defect chemistry of ceria–praseodymia single crystals

Physical Chemistry Chemical Physics ◽

10.1039/c7cp03164e ◽

2017 ◽

Vol 19 (27) ◽

pp. 17661-17669 ◽

Cited By ~ 7

Author(s):

Kathrin Michel ◽

Jens-Peter Eufinger ◽

Gregor Ulbrich ◽

Martin Lerch ◽

Juergen Janek ◽

...

Keyword(s):

Rare Earth ◽

Electrical Properties ◽

Rare Earth Elements ◽

Electrochemical Properties ◽

Single Crystals ◽

Reference Data ◽

Oxygen Storage ◽

Redox Active ◽

System P ◽

Bulk System

The electrochemical properties of (Ce,Pr)O2 single crystals were characterized to obtain reference data for the bulk system.

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Growth and defect crystal structure of CdF2 and nonstoichiometric Cd1−x R x F2+x phases (R = rare earth elements and In). Part 3. Crystal structure of As-grown Cd0.90 R 0.10F2.10(R = Sm-Lu, Y) single crystals

Crystallography Reports ◽

10.1134/1.2049415 ◽

2005 ◽

Vol 50 (5) ◽

pp. 892-892

Author(s):

E. A. Sul’yanova ◽

A. P. Shcherbakov ◽

V. N. Molchanov ◽

V. I. Simonov ◽

B. P. Sobolev

Keyword(s):

Crystal Structure ◽

Rare Earth ◽

Rare Earth Elements ◽

Single Crystals ◽

Defect Crystal

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Photoluminescence Spectral Lines Identification in Ho3+-, Er3+-, and Tm3+-doped MgxZn1–xSe Single Crystals

Journal of Materials Research ◽

10.1557/jmr.1999.0167 ◽

1999 ◽

Vol 14 (4) ◽

pp. 1227-1234 ◽

Cited By ~ 5

Author(s):

Young-Geun Kim ◽

Ho-Jun Song ◽

Seok-Kyun Oh ◽

Wha-Tek Kim ◽

Kwang-Ho Park ◽

...

Keyword(s):

Rare Earth ◽

Rare Earth Elements ◽

Single Crystals ◽

Energy Levels ◽

Wurtzite Structure ◽

Spectral Lines ◽

Photoluminescence Spectra ◽

Closed Tube ◽

Sublimation Method ◽

The Rare Earth

MgxZn1-xSi: Ho3+, MgxZn1-xSe: Er3+, and MgxZn1-xSe: Tm3+ single crystals were grown by the closed-tube sublimation method. The single crystals crystallized into a zincblende structure at the composition x = 0.11 and a wurtzite structure at the composition x = 0.25, 0.32, and 0.41. The trivalent ions (Ho3+, Er3+, and Tm3+) of the rare-earth elements Ho, Er, and Tm site in Td and C3v symmetries in the single crystals with zincblende and wurtzite structures, respectively. Sharp emission peaks appeared in the photoluminescence spectra of the single crystals. These emission peaks are identified to originate from the radiation recombination between the energy levels of the trivalent ions sited in Td and C3v symmetries.

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