Colossal magnetoresistance in Sr2-xNd1+xMn2O7 (x=0.0,0.1)
Magnetization and magnetotransport measurements have been used to study the composition dependence of the electronic properties of the Ruddlesden-Popper phases Sr2NdMn2O7 and Sr1.9Nd1.1Mn2O7. Although their behaviour differs in detail, both compounds show a colossal magnetoresistance (CMR) effect (&...
| Autores principales: | , , , , , , , , , , , , , , |
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| Formato: | Journal article |
| Lenguaje: | English |
| Publicado: |
1996
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| _version_ | 1826290264717656064 |
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| author | Battle, P Blundell, S Green, M Hayes, W Honold, M Klehe, A Laskey, N Millburn, J Murphy, L Rosseinsky, M Samarin, N Singleton, J Sluchanko, N Sullivan, S Vente, J |
| author_facet | Battle, P Blundell, S Green, M Hayes, W Honold, M Klehe, A Laskey, N Millburn, J Murphy, L Rosseinsky, M Samarin, N Singleton, J Sluchanko, N Sullivan, S Vente, J |
| author_sort | Battle, P |
| collection | OXFORD |
| description | Magnetization and magnetotransport measurements have been used to study the composition dependence of the electronic properties of the Ruddlesden-Popper phases Sr2NdMn2O7 and Sr1.9Nd1.1Mn2O7. Although their behaviour differs in detail, both compounds show a colossal magnetoresistance (CMR) effect (>10 000% in 14 T) in the temperature range 4.2 ≤ T/K ≤ 100. However, neither material shows a transition to a ferromagnetic state above 4.2 K, and both materials have higher resistivities (>103 Ω cm for 4.2 ≤ T/K ≤ 100) than the metallic oxides previously found to show CMR. In view of the low conductivity and the absence of ferromagnetism, the CMR of these phases is not readily explained by a doubleexchange mechanism. |
| first_indexed | 2024-03-07T02:41:31Z |
| format | Journal article |
| id | oxford-uuid:aa9cdc29-3b38-4495-bea1-a9bff53f7f8d |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T02:41:31Z |
| publishDate | 1996 |
| record_format | dspace |
| spelling | oxford-uuid:aa9cdc29-3b38-4495-bea1-a9bff53f7f8d2022-03-27T03:16:24ZColossal magnetoresistance in Sr2-xNd1+xMn2O7 (x=0.0,0.1)Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:aa9cdc29-3b38-4495-bea1-a9bff53f7f8dEnglishSymplectic Elements at Oxford1996Battle, PBlundell, SGreen, MHayes, WHonold, MKlehe, ALaskey, NMillburn, JMurphy, LRosseinsky, MSamarin, NSingleton, JSluchanko, NSullivan, SVente, JMagnetization and magnetotransport measurements have been used to study the composition dependence of the electronic properties of the Ruddlesden-Popper phases Sr2NdMn2O7 and Sr1.9Nd1.1Mn2O7. Although their behaviour differs in detail, both compounds show a colossal magnetoresistance (CMR) effect (>10 000% in 14 T) in the temperature range 4.2 ≤ T/K ≤ 100. However, neither material shows a transition to a ferromagnetic state above 4.2 K, and both materials have higher resistivities (>103 Ω cm for 4.2 ≤ T/K ≤ 100) than the metallic oxides previously found to show CMR. In view of the low conductivity and the absence of ferromagnetism, the CMR of these phases is not readily explained by a doubleexchange mechanism. |
| spellingShingle | Battle, P Blundell, S Green, M Hayes, W Honold, M Klehe, A Laskey, N Millburn, J Murphy, L Rosseinsky, M Samarin, N Singleton, J Sluchanko, N Sullivan, S Vente, J Colossal magnetoresistance in Sr2-xNd1+xMn2O7 (x=0.0,0.1) |
| title | Colossal magnetoresistance in Sr2-xNd1+xMn2O7 (x=0.0,0.1) |
| title_full | Colossal magnetoresistance in Sr2-xNd1+xMn2O7 (x=0.0,0.1) |
| title_fullStr | Colossal magnetoresistance in Sr2-xNd1+xMn2O7 (x=0.0,0.1) |
| title_full_unstemmed | Colossal magnetoresistance in Sr2-xNd1+xMn2O7 (x=0.0,0.1) |
| title_short | Colossal magnetoresistance in Sr2-xNd1+xMn2O7 (x=0.0,0.1) |
| title_sort | colossal magnetoresistance in sr2 xnd1 xmn2o7 x 0 0 0 1 |
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