Impurity-Induced Magnetic Order in Low-Dimensional Spin-Gapped Materials
DSpace at IIT Bombay
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Title |
Impurity-Induced Magnetic Order in Low-Dimensional Spin-Gapped Materials
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Creator |
BOBROFF, J
LAFLORENCIE, N ALEXANDER, LK MAHAJAN, AV KOTESWARARAO, B MENDELS, P |
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Subject |
long-range order
nonmagnetic impurities ladder systems peierls cugeo3 zn antiferromagnets transition compound srcu2o3 |
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Description |
We have studied the effect of nonmagnetic Zn impurities in the coupled spin ladder Bi(Cu(1-x)Zn(x))(2)PO(6) using (31)P NMR, muon spin resonance (mu SR), and quantum Monte Carlo simulations. Our results show that the impurities induce in their vicinity antiferromagnetic polarizations, extending over a few unit cells. At low temperature, these extended moments freeze in a process which is found universal among various other spin-gapped compounds: isolated ladders, Haldane, or spin-Peierls chains. This allows us to propose a simple common framework to explain the generic low-temperature impurity-induced freezings observed in low-dimensional spin-gapped materials.
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Publisher |
AMER PHYSICAL SOC
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Date |
2011-07-16T21:19:25Z
2011-12-26T12:49:58Z 2011-12-27T05:35:49Z 2011-07-16T21:19:25Z 2011-12-26T12:49:58Z 2011-12-27T05:35:49Z 2009 |
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Type |
Article
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Identifier |
PHYSICAL REVIEW LETTERS, 103(4), -
0031-9007 http://dx.doi.org/10.1103/PhysRevLett.103.047201 http://dspace.library.iitb.ac.in/xmlui/handle/10054/4533 http://hdl.handle.net/10054/4533 |
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Language |
en
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