UNSPECIFIED (2004) Charge and spin dynamics in the electron-doped high temperature superconducting cuprates. In: International Conference on Advanced Materials and Nanotechnology, WELLINGTON, NEW ZEALAND, FEB 09-14, 2003. Published in: CURRENT APPLIED PHYSICS, 4 (2-4). pp. 280-283.

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Abstract

We show that the Cu-63 and O-17 NMR spin-lattice relaxation rates from the electron-doped high temperature superconducting cuprates (HTSC), Sr0.9La0.1CuO2 and Pr1.85Ce0.15CuO4 are consistent with antiferromagnetic spin fluctuations in the CuO2 planes. However, unlike the hole-doped HTSC, there is no normal-state pseudogap or spin-gap. Furthermore, there is no evidence for a slowing down of the spin dynamics that is observed in underdoped and hole-doped HTSC and attributed to electronic phase separation. We also find that the normal-state static spin Susceptibility in Sr0.9La0.1CuO2 is only similar to15% of that observed in the hole-doped HTSC. (C) 2003 Elsevier B.V. All rights reserved.

Item Type:	Conference Item (UNSPECIFIED)
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) Q Science > QC Physics
Journal or Publication Title:	CURRENT APPLIED PHYSICS
Publisher:	ELSEVIER SCIENCE BV
ISSN:	1567-1739
Date:	April 2004
Volume:	4
Number:	2-4
Number of Pages:	4
Page Range:	pp. 280-283
Identification Number:	10.1016/j.cap.2003.11.028
Publication Status:	Published
Title of Event:	International Conference on Advanced Materials and Nanotechnology
Location of Event:	WELLINGTON, NEW ZEALAND
Date(s) of Event:	FEB 09-14, 2003
URI:	http://wrap.warwick.ac.uk/id/eprint/8528

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