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ELSEVIER Physics C 282-287 (1997) 232-235 Doping Dependence of the Magnetic Resonance Peak in YBa2Cu3OB+x
 

Summary: ELSEVIER Physics C 282-287 (1997) 232-235
PHYSICA
Doping Dependence of the Magnetic Resonance Peak in YBa2Cu3OB+x
B. Keimera* , H.F. Fonga, S.H. Leeb, D.L. Miliusą, I.A. Aksayc
aDept, of Physics, Princeton University, Princeton, NJ 08544, USA
bReactor Division, NIST, Gaithersburg, MD 20899, USA
CDept. of Chemical Engineering, Princeton University, Princeton, NJ 08544, USA
We report inelasticneutron scatteringexperiments on the doping dependence of the energy and spectralweight
of the sharp magnetic resonance peak in YBa~CusO6+~. These measurements alsoshed lighton the relationship
between the magnetic excitationsin the normal and superconducting states.
Magnetic excitations in high temperature su-
perconductors have been intensively studied ex-
perimentally and theoretically for a number of
years as they provide a direct and incisive probe
of correlation effects in the cuprates. These ef-
forts have been redoubled after the discovery of
a sharp magnetic collective mode in YBa2CusOr
by inelastic neutron scattering [1-3]. This mode
is strongly coupled to superconductivity in this
material; in fact, it is only present in the super-

  

Source: Aksay, Ilhan A. - Department of Chemical Engineering, Princeton University

 

Collections: Materials Science