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Liu X, Gong P, Yang Y, Song G, Lin Z. Nitrate nonlinear optical crystals: A survey on structure-performance relationships. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.213045] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Ackermann M, Andersen L, Becker P, Bohatý L. Pyroelectric properties of the monoclinic rare earth nitrates A
2
Ln(NO 3) 5·4H 2O ( A = NH 4, Rb; Ln = La, Ce). Z KRIST-CRYST MATER 2015. [DOI: 10.1515/zkri-2014-1827] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The pyroelectric effect of four isomorphic monoclinic (space group Cc), non-ferroelectric rare earth nitrates A
2
Ln(NO3)5·4H2O (A = NH4, Rb; Ln = La, Ce) was investigated in the temperature range between 100 K and 300 K, using a home-made continuous-flow cryostat for measurements of pyroelectric currents. The symmetry-allowed temperature-dependent change of orientation of the pyroelectric vector
p
within the mirror plane is unusually large, showing a rotation of
p
of 148°, 129°, 36° and 40° for (NH4)2La(NO3)5·4H2O, (NH4)2Ce(NO3)5·4H2O, Rb2La(NO3)5·4H2O and Rb2Ce(NO3)5·4H2O, respectively, while changing the temperature from 100 K to 300 K in each case. The pyroelectric coefficients are up to ten times larger than p
3
of tourmaline. In addition, new data of the pyroelectric coefficients of Li2SO4·H2O and BiB3O6 and their temperature dependence are given.
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Affiliation(s)
- Matthias Ackermann
- Institut für Kristallographie, Universität zu Köln, Greinstr. 6, 50939 Köln, Germany
| | - Lionel Andersen
- Institut für Kristallographie, Universität zu Köln, Greinstr. 6, 50939 Köln, Germany
| | - Petra Becker
- Institut für Kristallographie, Universität zu Köln, Greinstr. 6, 50939 Köln, Germany
| | - Ladislav Bohatý
- Institut für Kristallographie, Universität zu Köln, Greinstr. 6, 50939 Köln, Germany
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Bohatý L, Fröhlich R, Held P, Becker P. Non‐Centrosymmetric Ammonium Rare Earth Nitrates (NH
4
)
2
Ln(NO
3
)
5
·4H
2
O – Crystal Structure, Crystal Growth and Optical Properties. Eur J Inorg Chem 2010. [DOI: 10.1002/ejic.201000179] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ladislav Bohatý
- Institut für Kristallographie, Universität zu Köln, Zülpicher Str. 49b, 50674 Köln, Germany, Fax: +49‐221‐470‐4963
| | - Roland Fröhlich
- Organisch‐Chemisches Institut, Universität Münster, Corrensstr. 40, 48149 Münster, Germany
| | - Peter Held
- Institut für Kristallographie, Universität zu Köln, Zülpicher Str. 49b, 50674 Köln, Germany, Fax: +49‐221‐470‐4963
| | - Petra Becker
- Institut für Kristallographie, Universität zu Köln, Zülpicher Str. 49b, 50674 Köln, Germany, Fax: +49‐221‐470‐4963
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Bohatý L, Becker P. Optical properties of non-centrosymmetric mixed crystals K2(La1-xCex)(NO3)5· 2 H2O (x= 0.0 - 1.0). CRYSTAL RESEARCH AND TECHNOLOGY 2009. [DOI: 10.1002/crat.200900474] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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