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research article

Evidence for an incommensurate magnetic resonance in La2-xSrxCuO4

Tranquada, J. M.
•
Lee, C. H.
•
Yamada, K.
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2004
Physical Review B

We study the effect of a magnetic field (applied along the c axis) on the low-energy, incommensurate magnetic fluctuations in superconducting La1.82Sr0.18CuO4. The incommensurate peaks at 9 meV, which in zero field were previously shown to sharpen in q on cooling below T-c [T. E. Mason , Phys. Rev. Lett. 77, 1604 (1996)], are found to broaden in q when a field of 10 T is applied. The applied field also causes scattered intensity to shift into the spin gap. We point out that the response at 9 meV, though occurring at incommensurate wave vectors, is comparable to the commensurate magnetic resonance observed at higher energies in other cuprate superconductors.

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Type
research article
DOI
10.1103/PhysRevB.69.174507
Author(s)
Tranquada, J. M.
•
Lee, C. H.
•
Yamada, K.
•
Lee, Y. S.
•
Regnault, L. P.
•
Ronnow, H. M.  
Date Issued

2004

Published in
Physical Review B
Volume

69

Issue

17

Article Number

174507

Subjects

HIGH-TEMPERATURE SUPERCONDUCTORS

•

INELASTIC NEUTRON-SCATTERING

•

T-C

•

CUPRATE SUPERCONDUCTORS

•

SPIN DYNAMICS

•

GAP

•

BI2SR2CACU2O8+DELTA

•

YBA2CU3O6.6

•

COHERENCE

•

STATE

Note

Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058568, Japan. Kyoto Univ, Inst Chem Res, Kyoto 6110011, Japan. MIT, Dept Phys, Cambridge, MA 02139 USA. CEA Grenoble, Dept Rech Fondamentale Mat Condensee, F-38054 Grenoble 9, France. Tranquada, JM, Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA.

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Available on Infoscience
January 24, 2007
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/239939
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