Interplay between charge order, magnetism, and structure in La0.875Sr0.125MnO3

We have measured specific heat, magnetization, and electrical transport pro perties of La0.875ST0.125MnO3 single crystals in magnetic fields up to 14 T . In addition to a ferromagnetic transition two structural phase transition s are observed with one of the latter associated with charge ordering. The low temperature charge ordered state is found to be stabilized by an applie d magnetic field, what cannot be understood within the scope of the double exchange mechanism, but only in terms of a subtle interplay between Jahn-Te ller effect, magnetism, and charge ordering. of spin-lattice and charge-lat tice interactions in the manganites. Our results demonstrate the importance of spin-lattice and charge-lattice interactions in the manganites. [S0031- 9007(98)08052-1].