Phys. Rev. Lett. 74, 5108–5111 (1995)Collapse of a Charge-Ordered State under a Magnetic Field in Pr1/2Sr1/2MnO3Received 13 February 1995; published in the issue dated 19 June 1995 The perovskite-type manganese oxide, Pr1-xSrxMnO3 (x = 0.5), shows a first-order phase transition from a ferromagnetic (FM) metal to antiferromagnetic (AFM) nonmetal at 140 K, which accompanies the transition to the charge-ordered state (generalized Wigner lattice). The nonmetal-to-metal transition temperature can be decreased down to near 0 K with a magnetic field up to 70 kOe. The temperature-field phase diagram for the charge-ordered state is presented together with a discussion on the mechanism of this field-induced phase transition. © 1995 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.74.5108
DOI:
10.1103/PhysRevLett.74.5108
PACS:
71.27.+a, 71.28.+d, 71.30.+h, 75.30.Kz
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