Colossal magnetoresistance in Gd1/2Sr1/2MnO3
UNSPECIFIED. (1998) Colossal magnetoresistance in Gd1/2Sr1/2MnO3. JOURNAL OF APPLIED PHYSICS, 83 (12). pp. 7664-7667. ISSN 0021-8979Full text not available from this repository.
Colossal magnetoresistance has been observed in polycrystalline Gd0.5Sr0.5MnO3 perovskite. Irreversibility and sharp anomalies in the magnetostriction, magnetization, and magnetoresistance isotherms take place at low temperatures (<90 K), which have been attributed to the establishment of a charge-ordered state (CO). For temperatures lower than approximate to 42 K, the CO state coexists with a cluster-glass state, as deduced from the magnetic and specific heat behavior and neutron scattering experiments. The linear-thermal-expansion measurements show an abrupt drop for T approximate to T-CO when a sufficiently high magnetic field is applied. The appearance of this anomaly has been attributed to the partial delocalization of the carriers by the field. (C) 1998 American Institute of Physics.
|Item Type:||Journal Article|
|Subjects:||Q Science > QC Physics|
|Journal or Publication Title:||JOURNAL OF APPLIED PHYSICS|
|Publisher:||AMER INST PHYSICS|
|Date:||15 June 1998|
|Number of Pages:||4|
|Page Range:||pp. 7664-7667|
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