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Magnetism in the dilute Kondo lattice model
KTH, Superseded Departments, Physics.
KTH, Superseded Departments, Physics.ORCID iD: 0000-0002-2076-5911
2004 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 69, no 17Article in journal (Refereed) Published
Abstract [en]

The one-dimensional dilute Kondo lattice model is investigated by means of bosonization for different dilution patterns of the array of impurity spins. The physical picture is very different if a commensurate or incommensurate doping of the impurity spins is considered. For the commensurate case, the obtained phase diagram is vertified using a non-Abelian density-matrix renormalization-group algorithm. The paramagnetic phase widens at the expense of the ferromagnetic phase as the f spins are diluted. For the incommensurate case, short-range antiferromagnetic correlations are found to dominate at low doping, which distinguishes the dilute Kondo lattice model from the standard Kondo lattice model.

Place, publisher, year, edition, pages
2004. Vol. 69, no 17
Keyword [en]
matrix renormalization-group, ground-state, phase-diagram, group algorithm, hubbard-model, one dimension, spin, liquid, ferromagnetism, insulators
National Category
Physical Sciences
URN: urn:nbn:se:kth:diva-23486DOI: 10.1103/PhysRevB.69.174425ISI: 000221907200058ScopusID: 2-s2.0-42749105856OAI: diva2:342184
QC 20100525Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2011-11-01Bibliographically approved

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