Magnetic Superstructure and Metal-Insulator Transition in Mn-Substituted Sr3Ru2O7

Autor:	Hossain, M. A., Bohnenbuck, B., Chuang, Y. -D., Gonzalez, A. G. Cruz, Zegkinoglou, I., Haverkort, M. W., Geck, J., Hawthorn, D. G., Wu, H. -H., Schussler-Langeheine, C., Mathieu, R., Tokura, Y., Satow, S., Takagi, H., Yoshida, Y., Denlinger, J. D., Elfimov, I. S., Hussain, Z., Keimer, B., Sawatzky, G. A., Damascelli, A.
Rok vydání:	2009
Předmět:	Condensed Matter - Strongly Correlated Electrons
Druh dokumentu:	Working Paper
Popis:	We present a temperature-dependent resonant elastic soft x-ray scattering (REXS) study of the metal-insulator transition in Sr3(Ru1-xMnx)2O7, performed at both Ru and Mn L-edges. Resonant magnetic superstructure reflections, which indicate an incipient instability of the parent compound, are detected below the transition. Based on modelling of the REXS intensity from randomly distributed Mn impurities, we establish the inhomogeneous nature of the metal-insulator transition, with an effective percolation threshold corresponding to an anomalously low x<0.05 Mn substitution. Comment: A high-resolution version can be found at http://www.physics.ubc.ca/~quantmat/ARPES/PUBLICATIONS/Articles/MnSRO_REXS.pdf
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0906.0035 Zobrazit plný text záznamu View this record from Arxiv