Comparison of pressure, magnetic field and excess manganese effects on transport properties of film and bulk ceramic La–Ca manganites
The pressure, magnetic field and excess manganese effects on transport and magnetoresistance
 effect (MRE) have been studied in both the epitaxial films and bulk ceramics of manganites
 (La₀.₇Ca₀.₃)₁₋xMn₁₊xO₃₋y (x = 0–0.2). A comparison of electrical behavior in both kinds of samples...
Gespeichert in:
| Veröffentlicht in: | Физика низких температур |
|---|---|
| Datum: | 2006 |
| Hauptverfasser: | , , , , , , , , , , , |
| Format: | Artikel |
| Sprache: | Englisch |
| Veröffentlicht: |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2006
|
| Schlagworte: | |
| Online Zugang: | https://nasplib.isofts.kiev.ua/handle/123456789/120130 |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | Comparison of pressure, magnetic field and excess manganese effects on transport properties of film and bulk ceramic La–Ca manganites / V.I. Mikhaylov, V.P. Dyakonov, E.E. Zubov, A.V. Pashchenko, V.N. Varyukhin, V.A. Shtaba, A. Szewczyk, A. Abal’oshev, K. Piotrowski, K. Dyakonov, S.J. Lewandowski, H. Szymczak // Физика низких температур. — 2006. — Т. 32, № 2. — С. 190-200. — Бібліогр.: 43 назв. — англ. |
Institution
Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862701582867496960 |
|---|---|
| author | Mikhaylov, V.I. Dyakonov, V.P. Zubov, E.E. Pashchenko, A.V. Varyukhin, V.N. Shtaba, V.A. Szewczyk, A. Abal’oshev, A. Piotrowski, K. Dyakonov, K. Lewandowski, S.J. Szymczak, H. |
| author_facet | Mikhaylov, V.I. Dyakonov, V.P. Zubov, E.E. Pashchenko, A.V. Varyukhin, V.N. Shtaba, V.A. Szewczyk, A. Abal’oshev, A. Piotrowski, K. Dyakonov, K. Lewandowski, S.J. Szymczak, H. |
| citation_txt | Comparison of pressure, magnetic field and excess manganese effects on transport properties of film and bulk ceramic La–Ca manganites / V.I. Mikhaylov, V.P. Dyakonov, E.E. Zubov, A.V. Pashchenko, V.N. Varyukhin, V.A. Shtaba, A. Szewczyk, A. Abal’oshev, K. Piotrowski, K. Dyakonov, S.J. Lewandowski, H. Szymczak // Физика низких температур. — 2006. — Т. 32, № 2. — С. 190-200. — Бібліогр.: 43 назв. — англ. |
| collection | DSpace DC |
| container_title | Физика низких температур |
| description | The pressure, magnetic field and excess manganese effects on transport and magnetoresistance
effect (MRE) have been studied in both the epitaxial films and bulk ceramics of manganites
(La₀.₇Ca₀.₃)₁₋xMn₁₊xO₃₋y (x = 0–0.2). A comparison of electrical behavior in both kinds of samples
of similar composition at hydrostatic pressures of up to 1.8 GPa and in a magnetic fields of up
to 8 kOe has been performed. The pressure and magnetic field effects are shown to increase with
increasing manganese content. Experimental data show that the pressure and magnetic field effects
on temperatures of both metal–insulator transition (TMD) and MRE peak (TMR) are considerably
stronger in the films than in ceramics. The hydrostatic pressure increases TMD and TMR.
Magnetoresistance effect for both types of samples was shown to be favored by the pressure and
magnetic field in an opposite way. A direct correlation is established between TMD and conductivity
bandwidth as well as between MRE and concentration of charge carriers at applied pressure.
The differences in the values of pressure effect on resistance, MRE and TMD temperature in the
films and ceramics are connected with both granular structure of ceramics and the oxygen
nonstoichiometry in ceramic and film samples of the same content as well as with the film strain
induced by lattice mismatch between the film and the substrate. The origin of pressure–magnetic
field effects is analyzed in the framework of double exchange interaction and small polaron hopping,
and variable range hopping models.
|
| first_indexed | 2025-12-07T16:42:44Z |
| format | Article |
| fulltext | |
| id | nasplib_isofts_kiev_ua-123456789-120130 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 0132-6414 |
| language | English |
| last_indexed | 2025-12-07T16:42:44Z |
| publishDate | 2006 |
| publisher | Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| record_format | dspace |
| spelling | Mikhaylov, V.I. Dyakonov, V.P. Zubov, E.E. Pashchenko, A.V. Varyukhin, V.N. Shtaba, V.A. Szewczyk, A. Abal’oshev, A. Piotrowski, K. Dyakonov, K. Lewandowski, S.J. Szymczak, H. 2017-06-11T07:12:17Z 2017-06-11T07:12:17Z 2006 Comparison of pressure, magnetic field and excess manganese effects on transport properties of film and bulk ceramic La–Ca manganites / V.I. Mikhaylov, V.P. Dyakonov, E.E. Zubov, A.V. Pashchenko, V.N. Varyukhin, V.A. Shtaba, A. Szewczyk, A. Abal’oshev, K. Piotrowski, K. Dyakonov, S.J. Lewandowski, H. Szymczak // Физика низких температур. — 2006. — Т. 32, № 2. — С. 190-200. — Бібліогр.: 43 назв. — англ. 0132-6414 PACS: 72.10.Di, 72.15.Gd, 72.60.+g, 73.61.–r, 75.30.Vn, 62.50.+p https://nasplib.isofts.kiev.ua/handle/123456789/120130 The pressure, magnetic field and excess manganese effects on transport and magnetoresistance
 effect (MRE) have been studied in both the epitaxial films and bulk ceramics of manganites
 (La₀.₇Ca₀.₃)₁₋xMn₁₊xO₃₋y (x = 0–0.2). A comparison of electrical behavior in both kinds of samples
 of similar composition at hydrostatic pressures of up to 1.8 GPa and in a magnetic fields of up
 to 8 kOe has been performed. The pressure and magnetic field effects are shown to increase with
 increasing manganese content. Experimental data show that the pressure and magnetic field effects
 on temperatures of both metal–insulator transition (TMD) and MRE peak (TMR) are considerably
 stronger in the films than in ceramics. The hydrostatic pressure increases TMD and TMR.
 Magnetoresistance effect for both types of samples was shown to be favored by the pressure and
 magnetic field in an opposite way. A direct correlation is established between TMD and conductivity
 bandwidth as well as between MRE and concentration of charge carriers at applied pressure.
 The differences in the values of pressure effect on resistance, MRE and TMD temperature in the
 films and ceramics are connected with both granular structure of ceramics and the oxygen
 nonstoichiometry in ceramic and film samples of the same content as well as with the film strain
 induced by lattice mismatch between the film and the substrate. The origin of pressure–magnetic
 field effects is analyzed in the framework of double exchange interaction and small polaron hopping,
 and variable range hopping models. This work was in part supported by the Polish Government
 Agency KBN (Project 1 P03B 025 26) and
 by the Russian Foundation for Basic Research (Grant
 No. 04-02-17598). V.I. Mikhaylov thanks the MIANOWSKI
 FUND for the financial support. The help
 offered by Mgr. S. Kucherenko during realization of
 this work is gratefully acknowledged. en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Электpонные свойства металлов и сплавов Comparison of pressure, magnetic field and excess manganese effects on transport properties of film and bulk ceramic La–Ca manganites Article published earlier |
| spellingShingle | Comparison of pressure, magnetic field and excess manganese effects on transport properties of film and bulk ceramic La–Ca manganites Mikhaylov, V.I. Dyakonov, V.P. Zubov, E.E. Pashchenko, A.V. Varyukhin, V.N. Shtaba, V.A. Szewczyk, A. Abal’oshev, A. Piotrowski, K. Dyakonov, K. Lewandowski, S.J. Szymczak, H. Электpонные свойства металлов и сплавов |
| title | Comparison of pressure, magnetic field and excess manganese effects on transport properties of film and bulk ceramic La–Ca manganites |
| title_full | Comparison of pressure, magnetic field and excess manganese effects on transport properties of film and bulk ceramic La–Ca manganites |
| title_fullStr | Comparison of pressure, magnetic field and excess manganese effects on transport properties of film and bulk ceramic La–Ca manganites |
| title_full_unstemmed | Comparison of pressure, magnetic field and excess manganese effects on transport properties of film and bulk ceramic La–Ca manganites |
| title_short | Comparison of pressure, magnetic field and excess manganese effects on transport properties of film and bulk ceramic La–Ca manganites |
| title_sort | comparison of pressure, magnetic field and excess manganese effects on transport properties of film and bulk ceramic la–ca manganites |
| topic | Электpонные свойства металлов и сплавов |
| topic_facet | Электpонные свойства металлов и сплавов |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/120130 |
| work_keys_str_mv | AT mikhaylovvi comparisonofpressuremagneticfieldandexcessmanganeseeffectsontransportpropertiesoffilmandbulkceramiclacamanganites AT dyakonovvp comparisonofpressuremagneticfieldandexcessmanganeseeffectsontransportpropertiesoffilmandbulkceramiclacamanganites AT zubovee comparisonofpressuremagneticfieldandexcessmanganeseeffectsontransportpropertiesoffilmandbulkceramiclacamanganites AT pashchenkoav comparisonofpressuremagneticfieldandexcessmanganeseeffectsontransportpropertiesoffilmandbulkceramiclacamanganites AT varyukhinvn comparisonofpressuremagneticfieldandexcessmanganeseeffectsontransportpropertiesoffilmandbulkceramiclacamanganites AT shtabava comparisonofpressuremagneticfieldandexcessmanganeseeffectsontransportpropertiesoffilmandbulkceramiclacamanganites AT szewczyka comparisonofpressuremagneticfieldandexcessmanganeseeffectsontransportpropertiesoffilmandbulkceramiclacamanganites AT abalosheva comparisonofpressuremagneticfieldandexcessmanganeseeffectsontransportpropertiesoffilmandbulkceramiclacamanganites AT piotrowskik comparisonofpressuremagneticfieldandexcessmanganeseeffectsontransportpropertiesoffilmandbulkceramiclacamanganites AT dyakonovk comparisonofpressuremagneticfieldandexcessmanganeseeffectsontransportpropertiesoffilmandbulkceramiclacamanganites AT lewandowskisj comparisonofpressuremagneticfieldandexcessmanganeseeffectsontransportpropertiesoffilmandbulkceramiclacamanganites AT szymczakh comparisonofpressuremagneticfieldandexcessmanganeseeffectsontransportpropertiesoffilmandbulkceramiclacamanganites |