3 papers
cond-mat.str-el2004
The Role of Grain Boundaries in Determining the Transport Properties in Magnetite
David C. Mertens, W. Montfrooij, R. J. McQueeney +2
We present magnetoresistance and Hall-effect measurements on single crystal magnetite Fe3O4 close to the Verwey transition Tv = 123.8 K. We show that the formation of grain boundar…
cond-mat.supr-con2001
Anisotropy in the electronic screening of oxygen lattice modes in YBa(2)Cu(3)O(6.95)
R. J. McQueeney, T. Egami, J. -H. Chung +7
Inelastic neutron scattering data from a twinned single-crystal of YBa2Cu3O6.95 are presented that show a distinct a-b plane anisotropy in the oxygen vibrations. The Cu-O bond-stre…
cond-mat.supr-con2000
Phonon Signature of Charge Inhomogeneity in High Temperature Superconductors YBa2Cu3O{6+x}
Y. Petrov, T. Egami, R. J. McQueeney +3
Temperature and composition dependences of high-energy longitudinal optical (LO) phonons in YBa2Cu3O{6+x}, studied by inelastic neutron scattering measurements, provide clear evide…