Disorder effects in the quantum kagome antiferromagnet ZnCu 3(OH)6Cl2

Physical Review B - Condensed Matter and Materials Physics

Volumn 78, Issue 13, 2008, Pages

  Rozenberg, M J ^a,b   Chitra, R ^c  

^a UNIVERSITÉ PARIS SUD   (France)

^b UNIVERSIDAD DE BUENOS AIRES   (Argentina)

^c UNIVERSITÉ PIERRE ET MARIE CURIE   (France)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 54449083807     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.78.132406     Document Type: Article

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18. Note that similar small clusters were studied in Refs..
19. Note that while in our model the shifts are positive (as given directly by the local magnetizations), the experimental shifts happen to be negative due to the physical hyperfine coupling constant.
20. Although the gap value should be affected by finite-size effects, extrapolations from larger systems data still predict a finite gap. Therefore one may expect our results to be qualitatively valid.