Professor Atsushi Fujimori, Professor Yoshinori Tokura's Spectroscopy of Mott Insulators and Correlated Metals: PDF

By Professor Atsushi Fujimori, Professor Yoshinori Tokura (auth.)

Spectroscopy of Mott Insulators and Correlated Metals large reviews of high-Tc cuprate superconductors have stimualted investigations into a number of transition-metal oxides. Mott transitions particularly supply interesting difficulties and new options in condensed subject physics. This ebook is a suite of brief overviews by means of recognized, energetic researchers during this box. It bargains with the newest advancements, with specific emphasis at the theoretical, spectroscopic, and delivery aspects.

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Additional resources for Spectroscopy of Mott Insulators and Correlated Metals: Proceedings of the 17th Taniguchi Symposium Kashikojima, Japan, October 24–28, 1994

Example text

To reduce number of degrees of freedom one utilizes U(I) invariance of the fields Ci and di expressed in the following way Ci di -+ =1 Ci 1exp( iBi ) di exp(i(Bi + 2XiO)), and the SU(2) symmetry of the fermion field and the Bose field Pi, expressed as fi -+ fi exp(iXoi) exp(iXini . r) Pi =~ exp(ixod exp(iXini . r)qi -+ exp(iB;)Pi This transformation reduces LB(r) to the form LB( r) = L:[ai(1 Ci 12 -I) + (ai i 3 (3;) I: qi/-l + 2(3i . q! qiO) /-1=0 (10) in which only the field d i is complex, and the renormalized Lagrange multipliers are ai, PiO, and Pi.

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