مرکز منطقه ای اطلاع رساني علوم و فناوري

DocumentCode :

860960

Title :

Canting of Spins in Manganites

Author :

Schlottmann, Pedro

Author_Institution :

Dept. of Phys., Florida State Univ., Tallahassee, FL

Volume :

Issue :

fYear :

2007

fDate :

6/1/2007 12:00:00 AM

Firstpage :

3085

Lastpage :

3087

Abstract :

The A and C phases of La_1-xCa_xMnO₃ display canting of the magnetically ordered t_2g-spins as a consequence of the competition between the double exchange and superexchange interactions. Using a mean-field slave-boson formulation for e_g-electrons in two orbitals with excluded multiple occupancy and Hund´s rule coupling between the e_g and t_2g electrons, the instability of the A, B, C, and G phases toward canting is studied

Keywords :

calcium compounds; canted spin arrangements; lanthanum compounds; superexchange interactions; Hund´s rule coupling; La_1-xCa_xMnO₃; magnetically ordered t_2g-spins; manganites; mean-field slave-boson formulation; spin canting; superexchange interactions; Antiferromagnetic materials; Displays; Electrons; Helium; Insulation; Lattices; Magnetic separation; Metal-insulator structures; Nearest neighbor searches; Physics; Canting of spins; double exchange; manganites; superexchange;

fLanguage :

English

Journal_Title :

Magnetics, IEEE Transactions on

Publisher :

ieee

ISSN :

0018-9464

Type :

jour

DOI :

10.1109/TMAG.2007.892171

Filename :

4202900

Link To Document :

https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=860960