P-31 NMR study of the spin S=1/2 quasi-1D Heisenberg antiferromagnet BaCuP2O7

Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/100/2125

Title:	P-31 NMR study of the spin S=1/2 quasi-1D Heisenberg antiferromagnet BaCuP2O7
Authors:	MAHAJAN, AV NATH, R BUTTGEN, N KEGLER, C LOIDL, A BOBROFF, J
Keywords:	chains
Issue Date:	2006
Publisher:	ELSEVIER SCIENCE BV
Citation:	PHYSICA B-CONDENSED MATTER,378-80,1148-1149
Abstract:	We present bulk susceptibility and P-31 NMR measurements for BaCuP2O7. The data above 1 K are in good agreement with the S = 1/2 Heisenberg antiferromagnetic chain model with an intra-chain exchange constant J/k(B) = 108 K. Clear anomalies are observed at 0.85 K in the temperature dependence of the 31 P NMR shift, spin-lattice relaxation rate, and the spectra signifying the onset of some type of long-range order. The shape of the NMR spectra below 0.85 K Suggest the occurrence of incommensurate order. (c) 2006 Elsevier B.V. All rights reserved.
URI:	http://dx.doi.org/10.1016/j.physb.2006.01.510 http://dspace.library.iitb.ac.in/xmlui/handle/10054/15358 http://hdl.handle.net/100/2125
ISSN:	0921-4526
Appears in Collections:	Proceedings papers

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