title: Spin polarons in the correlated metallic pyrochlore Cd2Re2O7.
abstract: Muon spin rotation spectroscopy reveals localized electron states in the geometrically frustrated metallic pyrochlore Cd2Re2O7 at temperatures from 2 to 300 K in transverse magnetic fields up to 7 T. Two distinctive types of localized states, with characteristic radii of about 0.5 and 0.15 nm, are detected at high and low temperature, respectively. These states may be spin polarons, formed due to strong exchange interaction between itinerant electrons and the magnetic 5d electrons of Re ions, which may determine the peculiar electronic and magnetic properties of Cd2Re2O7.
authors.affiliation: Russian Research center "Kurchatov Institute," Kurchatov Square 1, Moscow 123182, Russia. mussr@triumf.ca
authors.forename: Vyacheslav G
authors.initials: VG
authors.lastname: Storchak
authors.forename: Jess H
authors.initials: JH
authors.lastname: Brewer
authors.forename: Scott L
authors.initials: SL
authors.lastname: Stubbs
authors.forename: Oleg E
authors.initials: OE
authors.lastname: Parfenov
authors.forename: Roger L
authors.initials: RL
authors.lastname: Lichti
authors.forename: Patrick W
authors.initials: PW
authors.lastname: Mengyan
authors.forename: Jian
authors.initials: J
authors.lastname: He
authors.forename: Isaac
authors.initials: I
authors.lastname: Bredeson
authors.forename: Dale
authors.initials: D
authors.lastname: Hitchcock
authors.forename: David
authors.initials: D
authors.lastname: Mandrus