24 research outputs found
Comment on the article “BiF3:Ho3+ System for Upconversion of 2-μm Laser Radiation into Visible Emission” of authors A. P. Savikin, A. S. Egorov, A. V. Budruev, and I. A. Grishin [Russian Journal of Applied Chemistry 89 (2), 337–340 (2016)]
Effect of electron irradiation on fluorides of alkali-earth elements (CaF2, SrF2 and BaF2)
Magnetic susceptibility of sodium rare-rarth fluorites Na[sub 0.5 -- x]R[sub 0.5 + x]F[sub 2 + 2x] (R [equals sign] Dy, Ho, Er, Tm, Yb) and some ordered phases
—Magnetic properties of the nonstoichiometric phases with the fluorite-type “defect” structure
Na
0.4
R
0.6
F
2.2
(
R
= Ho, Er, Tm, Yb) and Na
0.35
Dy
0.65
F
2.3
have been studied as well as some ordered phases with
different distortions of the initial fluorite lattice (NaHo
2
F
7
, Na
7
Tm
13
F
46
, NaYb
2
F
7
, and Na
7
Yb
13
F
46
) and
Na
1.5
Dy
1.5
F
6
with the gagarinite-type structure (NaCaYF
6
). Magnetic susceptibility
c
was measured with the
aid of the Faraday balance in the temperature range from 20 to 300 K. The crystals with
R
= Dy, Ho, Er, Tm are
paramagnetic; their temperature dependence
c
is described by the Curie–Weiss law. It is shown that in the temperature
range studied, magnetic susceptibility does not depend on the degree of order of Dy, Ho, Er, and Tm
ions in the structure. Below 80 K, the temperature dependence of magnetic susceptibility of the the Yb
3+
- containing
phases differs from the analogous dependence
c
of an ideal paramagnetic crystal, which is assumed to
be caused by the interaction of the crystalline field with Yb
3+
ions.Postprint (published version
Magnetic susceptibility of sodium rare-rarth fluorites Na[sub 0.5 -- x]R[sub 0.5 + x]F[sub 2 + 2x] (R [equals sign] Dy, Ho, Er, Tm, Yb) and some ordered phases
—Magnetic properties of the nonstoichiometric phases with the fluorite-type “defect” structure
Na
0.4
R
0.6
F
2.2
(
R
= Ho, Er, Tm, Yb) and Na
0.35
Dy
0.65
F
2.3
have been studied as well as some ordered phases with
different distortions of the initial fluorite lattice (NaHo
2
F
7
, Na
7
Tm
13
F
46
, NaYb
2
F
7
, and Na
7
Yb
13
F
46
) and
Na
1.5
Dy
1.5
F
6
with the gagarinite-type structure (NaCaYF
6
). Magnetic susceptibility
c
was measured with the
aid of the Faraday balance in the temperature range from 20 to 300 K. The crystals with
R
= Dy, Ho, Er, Tm are
paramagnetic; their temperature dependence
c
is described by the Curie–Weiss law. It is shown that in the temperature
range studied, magnetic susceptibility does not depend on the degree of order of Dy, Ho, Er, and Tm
ions in the structure. Below 80 K, the temperature dependence of magnetic susceptibility of the the Yb
3+
- containing
phases differs from the analogous dependence
c
of an ideal paramagnetic crystal, which is assumed to
be caused by the interaction of the crystalline field with Yb
3+
ions
Magnetic susceptibility of sodium rare-rarth fluorites Na[sub 0.5 -- x]R[sub 0.5 + x]F[sub 2 + 2x] (R [equals sign] Dy, Ho, Er, Tm, Yb) and some ordered phases
—Magnetic properties of the nonstoichiometric phases with the fluorite-type “defect” structure
Na
0.4
R
0.6
F
2.2
(
R
= Ho, Er, Tm, Yb) and Na
0.35
Dy
0.65
F
2.3
have been studied as well as some ordered phases with
different distortions of the initial fluorite lattice (NaHo
2
F
7
, Na
7
Tm
13
F
46
, NaYb
2
F
7
, and Na
7
Yb
13
F
46
) and
Na
1.5
Dy
1.5
F
6
with the gagarinite-type structure (NaCaYF
6
). Magnetic susceptibility
c
was measured with the
aid of the Faraday balance in the temperature range from 20 to 300 K. The crystals with
R
= Dy, Ho, Er, Tm are
paramagnetic; their temperature dependence
c
is described by the Curie–Weiss law. It is shown that in the temperature
range studied, magnetic susceptibility does not depend on the degree of order of Dy, Ho, Er, and Tm
ions in the structure. Below 80 K, the temperature dependence of magnetic susceptibility of the the Yb
3+
- containing
phases differs from the analogous dependence
c
of an ideal paramagnetic crystal, which is assumed to
be caused by the interaction of the crystalline field with Yb
3+
ions
Optimizing the composition and consumption of an inoculating mixture for producing iron containing spheroidal graphite
14.25; Translated from Russian (Izv. Vyssh. Uchebn. Zaved., Chern. Metall. 1985(2) p. 86-89)SIGLEAvailable from British Library Document Supply Centre- DSC:9022.06(BISI--23862)T / BLDSC - British Library Document Supply CentreGBUnited Kingdo