Unusual substitutional properties of Cu in bulk polycrystalline samples of La₀.₇Ca₀.₃Mn₁₋xCuxO₃₋δ
The transport and magnetoresistive properties of bulk polycrystalline samples of the La₀.₇Ca₀.₃Mn₁₋xCuxO₃₋δ (x ≤ 
 
 0.15) system are studied in the temperature range 77 K-300 K. All the samples investigated exhibit the giant magnetoresistance effect 
 
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| Published in: | Физика низких температур |
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| Date: | 2001 |
| Main Authors: | , , , |
| Format: | Article |
| Language: | English |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2001
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| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/128597 |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | Unusual substitutional properties of Cu in bulk polycrystalline samples of La₀.₇Ca₀.₃Mn₁₋xCuxO₃₋δ
 T
 
 / A.I. Tovstolytkin, A.N. 
 Pogorilyi, 
 O.Z. Belous, A.G. Yanchevski // Физика низких температур. — 2001. — Т. 27, № 5. — С. 500-507. — Бібліогр.: 27 назв. — англ. |
Institution
Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862602216934735872 |
|---|---|
| author | Tovstolytkin, A.I. Pogorilyi, A.N. Belous, O.Z. Yanchevski, A.G. |
| author_facet | Tovstolytkin, A.I. Pogorilyi, A.N. Belous, O.Z. Yanchevski, A.G. |
| citation_txt | Unusual substitutional properties of Cu in bulk polycrystalline samples of La₀.₇Ca₀.₃Mn₁₋xCuxO₃₋δ
 T
 
 / A.I. Tovstolytkin, A.N. 
 Pogorilyi, 
 O.Z. Belous, A.G. Yanchevski // Физика низких температур. — 2001. — Т. 27, № 5. — С. 500-507. — Бібліогр.: 27 назв. — англ. |
| collection | DSpace DC |
| container_title | Физика низких температур |
| description | The transport and magnetoresistive properties of bulk polycrystalline samples of the La₀.₇Ca₀.₃Mn₁₋xCuxO₃₋δ (x ≤ 

0.15) system are studied in the temperature range 77 K-300 K. All the samples investigated exhibit the giant magnetoresistance effect 

associated with the transition from the ferromagnetic metallic to the paramagnetic insulating state. As a function of copper concentration, 

the temperature of the resistivity peak, Tp, first decreases from 193 K (x=0) to 108 K (x=0.10) and then gradually grows, reaching 120 K at 

x=0.15. Significant temperature broadening of the resistive transition as well as anomalous behavior of the peak value of the resistivity 

are observed near x=0.10. The unusual properties of the La0.7Ca0.3Mn1-xCuxO3-d system are well explained in terms of a mixed valence of the 

Cu ions.
The transport and magnetoresistive properties of bulk polycrystalline samples of the La₀.₇Ca₀.₃Mn₁₋xCuxO₃₋δ (x=0.15) system are 

studied in the temperature range 77 K–300 K. All the samples investigated exhibit the giant magnetoresistance effect associated with the 

transition from the ferromagnetic metallic to the paramagnetic insulating state. As a function of copper concentration, the temperature Tp 

of the resistivity peak first decreases from 193 K (x=0) to 108 K (x=0.10) and then gradually grows, reaching 120 K at x=0.15. Significant 

temperature broadening of the resistive transition as well as anomalous behavior of the peak value of the resistivity are observed near 

x=0.10. The unusual properties of the La₀.₇Ca₀.₃Mn₁₋xCuxO₃₋δ system are well explained in terms of a mixed valence of the Cu ions.
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| first_indexed | 2025-11-28T03:39:23Z |
| format | Article |
| fulltext | |
| id | nasplib_isofts_kiev_ua-123456789-128597 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 0132-6414 |
| language | English |
| last_indexed | 2025-11-28T03:39:23Z |
| publishDate | 2001 |
| publisher | Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| record_format | dspace |
| spelling | Tovstolytkin, A.I. Pogorilyi, A.N. Belous, O.Z. Yanchevski, A.G. 2018-01-12T17:57:49Z 2018-01-12T17:57:49Z 2001 Unusual substitutional properties of Cu in bulk polycrystalline samples of La₀.₇Ca₀.₃Mn₁₋xCuxO₃₋δ
 T
 
 / A.I. Tovstolytkin, A.N. 
 Pogorilyi, 
 O.Z. Belous, A.G. Yanchevski // Физика низких температур. — 2001. — Т. 27, № 5. — С. 500-507. — Бібліогр.: 27 назв. — англ. 0132-6414 PACS: 72.60.+g, 75.50.-y https://nasplib.isofts.kiev.ua/handle/123456789/128597 The transport and magnetoresistive properties of bulk polycrystalline samples of the La₀.₇Ca₀.₃Mn₁₋xCuxO₃₋δ (x ≤ 
 
 0.15) system are studied in the temperature range 77 K-300 K. All the samples investigated exhibit the giant magnetoresistance effect 
 
 associated with the transition from the ferromagnetic metallic to the paramagnetic insulating state. As a function of copper concentration, 
 
 the temperature of the resistivity peak, Tp, first decreases from 193 K (x=0) to 108 K (x=0.10) and then gradually grows, reaching 120 K at 
 
 x=0.15. Significant temperature broadening of the resistive transition as well as anomalous behavior of the peak value of the resistivity 
 
 are observed near x=0.10. The unusual properties of the La0.7Ca0.3Mn1-xCuxO3-d system are well explained in terms of a mixed valence of the 
 
 Cu ions.
 The transport and magnetoresistive properties of bulk polycrystalline samples of the La₀.₇Ca₀.₃Mn₁₋xCuxO₃₋δ (x=0.15) system are 
 
 studied in the temperature range 77 K–300 K. All the samples investigated exhibit the giant magnetoresistance effect associated with the 
 
 transition from the ferromagnetic metallic to the paramagnetic insulating state. As a function of copper concentration, the temperature Tp 
 
 of the resistivity peak first decreases from 193 K (x=0) to 108 K (x=0.10) and then gradually grows, reaching 120 K at x=0.15. Significant 
 
 temperature broadening of the resistive transition as well as anomalous behavior of the peak value of the resistivity are observed near 
 
 x=0.10. The unusual properties of the La₀.₇Ca₀.₃Mn₁₋xCuxO₃₋δ system are well explained in terms of a mixed valence of the Cu ions. en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Электpонные свойства металлов и сплавов Unusual substitutional properties of Cu in bulk polycrystalline samples of La₀.₇Ca₀.₃Mn₁₋xCuxO₃₋δ Article published earlier |
| spellingShingle | Unusual substitutional properties of Cu in bulk polycrystalline samples of La₀.₇Ca₀.₃Mn₁₋xCuxO₃₋δ Tovstolytkin, A.I. Pogorilyi, A.N. Belous, O.Z. Yanchevski, A.G. Электpонные свойства металлов и сплавов |
| title | Unusual substitutional properties of Cu in bulk polycrystalline samples of La₀.₇Ca₀.₃Mn₁₋xCuxO₃₋δ |
| title_full | Unusual substitutional properties of Cu in bulk polycrystalline samples of La₀.₇Ca₀.₃Mn₁₋xCuxO₃₋δ |
| title_fullStr | Unusual substitutional properties of Cu in bulk polycrystalline samples of La₀.₇Ca₀.₃Mn₁₋xCuxO₃₋δ |
| title_full_unstemmed | Unusual substitutional properties of Cu in bulk polycrystalline samples of La₀.₇Ca₀.₃Mn₁₋xCuxO₃₋δ |
| title_short | Unusual substitutional properties of Cu in bulk polycrystalline samples of La₀.₇Ca₀.₃Mn₁₋xCuxO₃₋δ |
| title_sort | unusual substitutional properties of cu in bulk polycrystalline samples of la₀.₇ca₀.₃mn₁₋xcuxo₃₋δ |
| topic | Электpонные свойства металлов и сплавов |
| topic_facet | Электpонные свойства металлов и сплавов |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/128597 |
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