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Photoinduced melting of antiferromagnetic order in La(0.5)Sr(1.5)MnO4 measured using ultrafast resonant soft x-ray diffraction.

Abstract:

We used ultrafast resonant soft x-ray diffraction to probe the picosecond dynamics of spin and orbital order in La(0.5)Sr(1.5)MnO(4) after photoexcitation with a femtosecond pulse of 1.5 eV radiation. Complete melting of antiferromagnetic spin order is evidenced by the disappearance of a (1/4,1/4,1/2) diffraction peak. On the other hand, the (1/4,1/4,0) diffraction peak, reflecting orbital order, is only partially reduced. We interpret the results as evidence of destabilization in the short-r...

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Publication status:
Published

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Journal:
Physical Review Letters
Volume:
106
Issue:
21
Pages:
217401
Publication date:
2011-05-01
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
Source identifiers:
151312
Language:
English
Pubs id:
pubs:151312
UUID:
uuid:0cbdb874-6189-4dc2-86ec-c3b94a843e96
Local pid:
pubs:151312
Deposit date:
2012-12-19

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