TY - JOUR
T1 - Magnetic field effect on Fe-induced short-range magnetic correlation and electrical conductivity in Bi1.75 Pb0.35 Sr1.90 Cu0.91 Fe0.09 O6+y
AU - Wakimoto, Shuichi
AU - Hiraka, Haruhiro
AU - Kudo, Kazutaka
AU - Okamoto, Daichi
AU - Nishizaki, Terukazu
AU - Kakurai, Kazuhisa
AU - Hong, Tao
AU - Zheludev, Andrey
AU - Tranquada, John M.
AU - Kobayashi, Norio
AU - Yamada, Kazuyoshi
PY - 2010/8/10
Y1 - 2010/8/10
N2 - We report electrical-resistivity measurements and neutron-diffraction studies under magnetic fields of Bi1.75 Pb0.35 Sr 1.90 Cu0.91 Fe0.09 O6+y, in which hole carriers are overdoped. This compound shows short-range incommensurate magnetic correlation with incommensurability δ=0.21, whereas a Fe-free compound shows no magnetic correlation. Resistivity shows an up turn at low temperature in the form of ln (1/T) and shows no superconductivity. We observe reduction in resistivity by applying magnetic fields (i.e., a negative magnetoresistive effect) at temperatures below the onset of short-range magnetic correlation. Application of magnetic fields also suppresses the Fe-induced incommensurate magnetic correlation. We compare and contrast these observations with two different models: (1) stripe order and (2) dilute magnetic moments in a metallic alloy with associated Kondo behavior. The latter picture appears to be more relevant to the present results.
AB - We report electrical-resistivity measurements and neutron-diffraction studies under magnetic fields of Bi1.75 Pb0.35 Sr 1.90 Cu0.91 Fe0.09 O6+y, in which hole carriers are overdoped. This compound shows short-range incommensurate magnetic correlation with incommensurability δ=0.21, whereas a Fe-free compound shows no magnetic correlation. Resistivity shows an up turn at low temperature in the form of ln (1/T) and shows no superconductivity. We observe reduction in resistivity by applying magnetic fields (i.e., a negative magnetoresistive effect) at temperatures below the onset of short-range magnetic correlation. Application of magnetic fields also suppresses the Fe-induced incommensurate magnetic correlation. We compare and contrast these observations with two different models: (1) stripe order and (2) dilute magnetic moments in a metallic alloy with associated Kondo behavior. The latter picture appears to be more relevant to the present results.
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U2 - 10.1103/PhysRevB.82.064507
DO - 10.1103/PhysRevB.82.064507
M3 - Article
AN - SCOPUS:77957563726
SN - 1098-0121
VL - 82
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 6
M1 - 064507
ER -