Distortion of the crystal field in the van Vleck paramagnet LiTmF 4 activated by isovalent impurities
The spin‐lattice relaxation times of Ce 3+ , Nd 3+ , Yb 3+ ions are measured in LiTmF 4 single crystals at temperatures (1.6 to 5.0 K) and frequencies 9.4 and 23.0 GHz. An observed exponential dependence of the relaxation rate on temperature, T ∼ exp (−Δ/ kT ), shows that relaxation proceeds through...
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| Veröffentlicht in: | physica status solidi (b) 1989-03, Vol.152 (1), p.191-201 |
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| container_title | physica status solidi (b) |
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| creator | Aminov, L. K. Vinokurov, A. V. Kurkin, I. N. Kostetskii, Yu. Yu Korableva, S. L. Salikhov, I. Kh Sakhaeva, S. I. Teplov, M. A. |
| description | The spin‐lattice relaxation times of Ce
3+
, Nd
3+
, Yb
3+
ions are measured in LiTmF
4
single crystals at temperatures (1.6 to 5.0 K) and frequencies 9.4 and 23.0 GHz. An observed exponential dependence of the relaxation rate on temperature,
T
∼ exp (−Δ/
kT
), shows that relaxation proceeds through Van Vleck Tm
3+
host ions, and for the Nd
3+
ion it is possible to distinguish the contributions to relaxation of the nearest and more distant coordination spheres. The distinction of the activation energy Δ from the excitation energy of the lowest Tm
3+
doublet state in the ideal crystal (
32
cm
−1
) is explained by a strong distortion of the crystal field at the Tm
3+
ions nearest to the impurity. Investigations of the optical absorption spectra of Tm
3+
ions in pure and doped LiTmF
4
single crystals are in good agreement with this point of view.
[Russian Text Ignored]. |
| doi_str_mv | 10.1002/pssb.2221520121 |
| format | Article |
| fullrecord | <record><control><sourceid>crossref</sourceid><recordid>TN_cdi_crossref_primary_10_1002_pssb_2221520121</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>10_1002_pssb_2221520121</sourcerecordid><originalsourceid>FETCH-LOGICAL-c861-85a8a6ff6bd5189edbe5841cb04f69b81194d2964895e2ecea583a4fa071a7903</originalsourceid><addsrcrecordid>eNpFkE1LAzEURYMoWKtrt_kD0-ZlJjPJUqpVYcBNcTu8ybxodL5IYqH_3lYFV_dyFwfuYewWxAqEkOs5xnYlpQQlBUg4Y4tjgyw3Cs7ZQuSVyMBU8pJdxfghhKgghwWjex_TFJKfRj45nt6J23CICXvuPPUd9-PPuMeRv_ZkP_mMAQd8Gynx2u-GLS842uT3mKjj7YH7OO2xpzFxP8xfwSdP8ZpdOOwj3fzlku22D7vNU1a_PD5v7urM6hIyrVBj6VzZdgq0oa4lpQuwrShcaVoNYIpOmrLQRpEkS6h0joXD4xesjMiXbP2LtWGKMZBr5uAHDIcGRHOS1JwkNf-S8m_LM1vz</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Distortion of the crystal field in the van Vleck paramagnet LiTmF 4 activated by isovalent impurities</title><source>Wiley Online Library Journals Frontfile Complete</source><creator>Aminov, L. K. ; Vinokurov, A. V. ; Kurkin, I. N. ; Kostetskii, Yu. Yu ; Korableva, S. L. ; Salikhov, I. Kh ; Sakhaeva, S. I. ; Teplov, M. A.</creator><creatorcontrib>Aminov, L. K. ; Vinokurov, A. V. ; Kurkin, I. N. ; Kostetskii, Yu. Yu ; Korableva, S. L. ; Salikhov, I. Kh ; Sakhaeva, S. I. ; Teplov, M. A.</creatorcontrib><description>The spin‐lattice relaxation times of Ce
3+
, Nd
3+
, Yb
3+
ions are measured in LiTmF
4
single crystals at temperatures (1.6 to 5.0 K) and frequencies 9.4 and 23.0 GHz. An observed exponential dependence of the relaxation rate on temperature,
T
∼ exp (−Δ/
kT
), shows that relaxation proceeds through Van Vleck Tm
3+
host ions, and for the Nd
3+
ion it is possible to distinguish the contributions to relaxation of the nearest and more distant coordination spheres. The distinction of the activation energy Δ from the excitation energy of the lowest Tm
3+
doublet state in the ideal crystal (
32
cm
−1
) is explained by a strong distortion of the crystal field at the Tm
3+
ions nearest to the impurity. Investigations of the optical absorption spectra of Tm
3+
ions in pure and doped LiTmF
4
single crystals are in good agreement with this point of view.
[Russian Text Ignored].</description><identifier>ISSN: 0370-1972</identifier><identifier>EISSN: 1521-3951</identifier><identifier>DOI: 10.1002/pssb.2221520121</identifier><language>eng</language><ispartof>physica status solidi (b), 1989-03, Vol.152 (1), p.191-201</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c861-85a8a6ff6bd5189edbe5841cb04f69b81194d2964895e2ecea583a4fa071a7903</citedby><cites>FETCH-LOGICAL-c861-85a8a6ff6bd5189edbe5841cb04f69b81194d2964895e2ecea583a4fa071a7903</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27923,27924</link.rule.ids></links><search><creatorcontrib>Aminov, L. K.</creatorcontrib><creatorcontrib>Vinokurov, A. V.</creatorcontrib><creatorcontrib>Kurkin, I. N.</creatorcontrib><creatorcontrib>Kostetskii, Yu. Yu</creatorcontrib><creatorcontrib>Korableva, S. L.</creatorcontrib><creatorcontrib>Salikhov, I. Kh</creatorcontrib><creatorcontrib>Sakhaeva, S. I.</creatorcontrib><creatorcontrib>Teplov, M. A.</creatorcontrib><title>Distortion of the crystal field in the van Vleck paramagnet LiTmF 4 activated by isovalent impurities</title><title>physica status solidi (b)</title><description>The spin‐lattice relaxation times of Ce
3+
, Nd
3+
, Yb
3+
ions are measured in LiTmF
4
single crystals at temperatures (1.6 to 5.0 K) and frequencies 9.4 and 23.0 GHz. An observed exponential dependence of the relaxation rate on temperature,
T
∼ exp (−Δ/
kT
), shows that relaxation proceeds through Van Vleck Tm
3+
host ions, and for the Nd
3+
ion it is possible to distinguish the contributions to relaxation of the nearest and more distant coordination spheres. The distinction of the activation energy Δ from the excitation energy of the lowest Tm
3+
doublet state in the ideal crystal (
32
cm
−1
) is explained by a strong distortion of the crystal field at the Tm
3+
ions nearest to the impurity. Investigations of the optical absorption spectra of Tm
3+
ions in pure and doped LiTmF
4
single crystals are in good agreement with this point of view.
[Russian Text Ignored].</description><issn>0370-1972</issn><issn>1521-3951</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1989</creationdate><recordtype>article</recordtype><recordid>eNpFkE1LAzEURYMoWKtrt_kD0-ZlJjPJUqpVYcBNcTu8ybxodL5IYqH_3lYFV_dyFwfuYewWxAqEkOs5xnYlpQQlBUg4Y4tjgyw3Cs7ZQuSVyMBU8pJdxfghhKgghwWjex_TFJKfRj45nt6J23CICXvuPPUd9-PPuMeRv_ZkP_mMAQd8Gynx2u-GLS842uT3mKjj7YH7OO2xpzFxP8xfwSdP8ZpdOOwj3fzlku22D7vNU1a_PD5v7urM6hIyrVBj6VzZdgq0oa4lpQuwrShcaVoNYIpOmrLQRpEkS6h0joXD4xesjMiXbP2LtWGKMZBr5uAHDIcGRHOS1JwkNf-S8m_LM1vz</recordid><startdate>198903</startdate><enddate>198903</enddate><creator>Aminov, L. K.</creator><creator>Vinokurov, A. V.</creator><creator>Kurkin, I. N.</creator><creator>Kostetskii, Yu. Yu</creator><creator>Korableva, S. L.</creator><creator>Salikhov, I. Kh</creator><creator>Sakhaeva, S. I.</creator><creator>Teplov, M. A.</creator><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>198903</creationdate><title>Distortion of the crystal field in the van Vleck paramagnet LiTmF 4 activated by isovalent impurities</title><author>Aminov, L. K. ; Vinokurov, A. V. ; Kurkin, I. N. ; Kostetskii, Yu. Yu ; Korableva, S. L. ; Salikhov, I. Kh ; Sakhaeva, S. I. ; Teplov, M. A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c861-85a8a6ff6bd5189edbe5841cb04f69b81194d2964895e2ecea583a4fa071a7903</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1989</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Aminov, L. K.</creatorcontrib><creatorcontrib>Vinokurov, A. V.</creatorcontrib><creatorcontrib>Kurkin, I. N.</creatorcontrib><creatorcontrib>Kostetskii, Yu. Yu</creatorcontrib><creatorcontrib>Korableva, S. L.</creatorcontrib><creatorcontrib>Salikhov, I. Kh</creatorcontrib><creatorcontrib>Sakhaeva, S. I.</creatorcontrib><creatorcontrib>Teplov, M. A.</creatorcontrib><collection>CrossRef</collection><jtitle>physica status solidi (b)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Aminov, L. K.</au><au>Vinokurov, A. V.</au><au>Kurkin, I. N.</au><au>Kostetskii, Yu. Yu</au><au>Korableva, S. L.</au><au>Salikhov, I. Kh</au><au>Sakhaeva, S. I.</au><au>Teplov, M. A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Distortion of the crystal field in the van Vleck paramagnet LiTmF 4 activated by isovalent impurities</atitle><jtitle>physica status solidi (b)</jtitle><date>1989-03</date><risdate>1989</risdate><volume>152</volume><issue>1</issue><spage>191</spage><epage>201</epage><pages>191-201</pages><issn>0370-1972</issn><eissn>1521-3951</eissn><abstract>The spin‐lattice relaxation times of Ce
3+
, Nd
3+
, Yb
3+
ions are measured in LiTmF
4
single crystals at temperatures (1.6 to 5.0 K) and frequencies 9.4 and 23.0 GHz. An observed exponential dependence of the relaxation rate on temperature,
T
∼ exp (−Δ/
kT
), shows that relaxation proceeds through Van Vleck Tm
3+
host ions, and for the Nd
3+
ion it is possible to distinguish the contributions to relaxation of the nearest and more distant coordination spheres. The distinction of the activation energy Δ from the excitation energy of the lowest Tm
3+
doublet state in the ideal crystal (
32
cm
−1
) is explained by a strong distortion of the crystal field at the Tm
3+
ions nearest to the impurity. Investigations of the optical absorption spectra of Tm
3+
ions in pure and doped LiTmF
4
single crystals are in good agreement with this point of view.
[Russian Text Ignored].</abstract><doi>10.1002/pssb.2221520121</doi><tpages>11</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0370-1972 |
| ispartof | physica status solidi (b), 1989-03, Vol.152 (1), p.191-201 |
| issn | 0370-1972 1521-3951 |
| language | eng |
| recordid | cdi_crossref_primary_10_1002_pssb_2221520121 |
| source | Wiley Online Library Journals Frontfile Complete |
| title | Distortion of the crystal field in the van Vleck paramagnet LiTmF 4 activated by isovalent impurities |
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