http://www.cnr.it/ontology/cnr/individuo/prodotto/ID207650
Effect of external pressure on the magnetic properties of LnFeAsO (Ln = La, Ce, Pr, Sm) (Articolo in rivista)
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- Effect of external pressure on the magnetic properties of LnFeAsO (Ln = La, Ce, Pr, Sm) (Articolo in rivista) (literal)
- Anno
- 2012-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1088/0953-2048/25/8/084009 (literal)
- Alternative label
Roberto De Renzi 1, Pietro Bonf?a 1, and Marcello Mazzani 1
Samuele Sanna 2, Giacomo Prandoz 2, and Pietro Carretta 2
Rustem Khasanov 3, Alex Amato 3, and Hubertus Luetkens 3
Markus Bendele 4
Fabio Bernardini 5 and Sandro Massidda 5
Andrea Palenzona 6, Matteo Tropeano 6 and Maurizio Vignolo 6 (2012)
Effect of external pressure on the magnetic properties of LnFeAsO (Ln = La, Ce, Pr, Sm)
in Superconductor science and technology (Print)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Roberto De Renzi 1, Pietro Bonf?a 1, and Marcello Mazzani 1
Samuele Sanna 2, Giacomo Prandoz 2, and Pietro Carretta 2
Rustem Khasanov 3, Alex Amato 3, and Hubertus Luetkens 3
Markus Bendele 4
Fabio Bernardini 5 and Sandro Massidda 5
Andrea Palenzona 6, Matteo Tropeano 6 and Maurizio Vignolo 6 (literal)
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- 1 Dipartimento di Fisica and Unit?a CNISM di Parma, I-43124 Parma, Italy
2 Dipartimento di Fisica \A. Volta\" and Unit?a CNISM di Pavia, I-27100 Pavia, Italy
3 Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
4 University of Zurich, Winterthurer Strasse 190, 8057 Zurich
5 CNR-SLACS and Universit?a di Cagliari, I-09042 Monserrato, Italy
6 CNR-SPIN and Universit?a di Genova, via Dodecaneso 33, I-16146 Genova, Italy (literal)
- Titolo
- Effect of external pressure on the magnetic properties of LnFeAsO (Ln = La, Ce, Pr, Sm) (literal)
- Abstract
- Abstract. We investigate the effect of external pressure on magnetic order in
undoped LnFeAsO (Ln = La, Ce, Pr, La) by using muon-spin relaxation measurements
and ab-initio calculations. Both magnetic transition temperature Tm and Fe magnetic
moment decrease with external pressure. The effect is observed to be lanthanide
dependent with the strongest response for Ln = La and the weakest for Ln = Sm. The
trend is qualitatively in agreement with our DFT calculations. The same calculations
allow us to assign a value of 0.68(2) ?B to the Fe moment, obtained from an accurate
determination of the muon sites. Our data further show that the magnetic lanthanide
order transitions do not follow the simple trend of Fe, possibly as a consequence of the
different f-electron overlap. (literal)
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