Paramagnetic Anisotropy and Crystal-Field Splittings in EuAlO3

1969 ◽  
Vol 178 (2) ◽  
pp. 576-579 ◽  
Author(s):  
L. Holmes ◽  
R. Sherwood ◽  
L. G. Van Uitert ◽  
S. Hüfner
Keyword(s):  
Crystal Field ◽  
Paramagnetic Anisotropy

The crystallography and paramagnetic anisotropy of potassium ferricyanide

1969 ◽  
Vol 309 (1496) ◽  
pp. 91-118 ◽  
Keyword(s):  
Crystal Field ◽  
Potassium Ferricyanide ◽  
Monoclinic Space Group ◽  
Potassium Ions ◽  
Crystal Anisotropy ◽  
Cell Dimensions ◽  
Paramagnetic Anisotropy ◽  
Set Up ◽  
Lower Moment ◽  
Unit Cell Dimensions

Single crystal X-ray analyses of the structure of potassium ferricyanide at ca. 300 and 95° K are reported. Least-squares refinements within the monoclinic space group, P 2 1 / c , have converged with the residuals R 300°K = 0·092 and R 95°K = 0·077. The unit cell dimensions at 300°K are: a = 7·06, b = 10·38, c = 8·40 Å, β = 107·0°, and at 95°K are: a = 7·03, b = 10·31, c = 8·35 Å, β = 107·2°. The coordination octahedra are only slightly distorted, both analyses independently revealing a small tetragonal elongation of the molecule along Fe-CN bonds lying nearly perpendicular to the crystallographic c axis. The principal crystal paramagnetic susceptibilities are characterized by an essentially unique, and lower, moment parallel to the c axis. These two observations are to be reconciled only in relation to the role of second-nearest neighbour effects of either antiferromagnetic or crystal-field character. Exchange is ruled out by earlier e.s.r. work and the present susceptibility dilution experiments. The crystal anisotropy appears to be dominated by the coulombic field set up by adjacent potassium ions in the lattice. While all potassium ions in the structure will play some role in this second-order perturbation, those forming ‘chains’ with the octahedra parallel to the c axis are likely to be the more important. A simple crystal-field approach, using symmetry-adapted, zero-order wavefunctions on the iron atoms, has shown how the correct direction and relative magnitudes of the crystal magnetic anisotropies may be predicted by this model. The splitting of the ground 2 T 2g term of the complexion is estimated as 150 to 300 cm -1 .

LOW SYMMETRY CRYSTAL FIELD IN LITHIUM SPINEL

1971 ◽  
Vol 32 (C1) ◽  
pp. C1-847-C1-849
Author(s):  
M. P. PIETROV ◽  
H. SZYMCZAK ◽  
R. WADAS ◽  
W. WARDZYNSKI
Keyword(s):  
Crystal Field ◽  
Low Symmetry

Determination of exchange and crystal field effects in Sm alloys by polarized neutron diffraction

1979 ◽  
Vol 40 (C5) ◽  
pp. C5-180-C5-182 ◽  
Author(s):  
J. X. Boucherle ◽  
D. Givord ◽  
J. Laforest ◽  
J. Schweizer ◽  
F. Tasset
Keyword(s):  
Neutron Diffraction ◽  
Crystal Field ◽  
Field Effects ◽  
Polarized Neutron

MAGNETISM AND CRYSTAL FIELD IN TmCu2

1988 ◽  
Vol 49 (C8) ◽  
pp. C8-415-C8-416 ◽  
Author(s):  
V. Šima ◽  
Z. Smetana ◽  
M. Diviš ◽  
P. Svoboda ◽  
Š. Zajac ◽  
...  
Keyword(s):  
Crystal Field

CRYSTAL-FIELD DEPENDENCE OF THE MAGNETIC LINEAR BIREFRINGENCE IN PARAMAGNETIC RARE-EARTH GARNETS

1988 ◽  
Vol 49 (C8) ◽  
pp. C8-955-C8-956 ◽  
Author(s):  
N. P. Kolmakova ◽  
R. Z. Levitin ◽  
A. I. Popov ◽  
N. F. Vedernikov ◽  
A. K. Zvezdin ◽  
...  
Keyword(s):  
Rare Earth ◽  
Crystal Field ◽  
Field Dependence ◽  
Linear Birefringence

Air-Stable n-Channel Organic Single-Crystal Field-Effect Transistors

2008 ◽  
Author(s):  
Takafumi Uemura ◽  
Masakazu Yamagishi ◽  
Yukihiro Tominari ◽  
Jun Takeya
Keyword(s):  
Single Crystal ◽  
Crystal Field ◽  
Field Effect ◽  
Field Effect Transistors ◽  
Crystal Field Effect ◽  
Organic Single Crystal

An Intuitive Method for the Determination of Crystal-Field Parameters in Laser Crystals

1993 ◽  
Vol 329 ◽  
Author(s):  
Frederick G. Anderson ◽  
H. Weidner ◽  
P. L. Summers ◽  
R. E. Peale ◽  
B. H. T. Chai
Keyword(s):  
Crystal Field ◽  
Irreducible Representations ◽  
Laser Crystals ◽  
Intuitive Method ◽  
Crystal Field Parameters ◽  
Intuitive Interpretation

AbstractExpanding the crystal field in terms of operators that transform as the irreducible representations of the Td group leads to an intuitive interpretation of the crystal-field parameters. We apply this method to the crystal field experienced by Nd3+ dopants in the laser crystals YLiF4, YVO4, and KLiYF5.

Crystal-Field Splitting of Orthohydrogen in Solid Parahydrogen

1967 ◽  
Vol 19 (25) ◽  
pp. 1417-1420 ◽  
Author(s):  
Walter N. Hardy ◽  
James R. Gaines
Keyword(s):  
Crystal Field ◽  
Crystal Field Splitting ◽  
Field Splitting
Sign in / Sign up

Export Citation Format

Share Document