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Author Roy, A. S. ♦ Husmann, A. ♦ Rosenbaum, T. F. ♦ Mitchell, J. F.
Sponsorship (US)
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Publisher The American Physical Society
Language English
Subject Keyword CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ♦ ANTIFERROMAGNETISM ♦ ELECTRIC CONDUCTIVITY ♦ ELECTRIC FIELDS ♦ HYDROSTATICS ♦ MAGNETIC FIELDS ♦ MAGNETIC SUSCEPTIBILITY ♦ MONITORS ♦ SPIN
Abstract The onset of charge order occurs simultaneously with the transition from ferromagnetic metal to antiferromagnetic insulator in Nd{sub 0.5}Sr{sub 0.5}MnO{sub 3}. The application of hydrostatic pressures P{>=}15kbar removes the degeneracy, as recorded in both the electrical resistivity and the magnetic susceptibility. The charge-ordered state moves swiftly to higher temperature with increasing pressure at the expense of the ferromagnetic charge liquid, dominating the energetics. An applied magnetic field H suppresses both the pressure-split charge order and the antiferromagnetism, but charge order preferentially, so by H=2T the two transitions are reunited. Finally, depinning domains of charge order with electric field deep in the antiferromagnetic insulator permits us to monitor pressure-induced changes in the charge (poly)crystal.
ISSN 01631829
Educational Use Research
Learning Resource Type Article
Publisher Date 2001-03-01
Publisher Place United States
Journal Physical Review B
Volume Number 63
Issue Number 9


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