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Field-induced segregation of ferromagnetic nanodomains in Pr0.5Sr0.5MnO3 detected by Mn-55 NMR

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UNSPECIFIED (2000) Field-induced segregation of ferromagnetic nanodomains in Pr0.5Sr0.5MnO3 detected by Mn-55 NMR. PHYSICAL REVIEW B, 61 (9). pp. 5924-5927. ISSN 1098-0121.

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Abstract

The antiferromagnetic manganite Pr0.5Sr0.5-MnO3 was investigated at low temperature by means of magnetometry and Mn-55 NMR. A field-induced transition to a ferromagnetic state is detected by magnetization measurements at a threshold field of a few tesla. NMR shows that the ferromagnetic phase develops from zero field by the nucleation of microscopic ferromagnetic domains, consisting of an inhomogeneous mixture of tilted and fully aligned parts. At the threshold the NMR spectrum changes discontinuously into that of a homogeneous, fully aligned, ferromagnetic state, suggesting a percolative origin for the ferromagnetic transition.

Item Type: Journal Article
Subjects: Q Science > QC Physics
Journal or Publication Title: PHYSICAL REVIEW B
Publisher: AMERICAN PHYSICAL SOC
ISSN: 1098-0121
Official Date: 1 March 2000
Dates:
DateEvent
1 March 2000UNSPECIFIED
Volume: 61
Number: 9
Number of Pages: 4
Page Range: pp. 5924-5927
Publication Status: Published

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