Phonon-induced quadrupolar ordering of the magnetic superconductor $TmNi_{2}B_{2}C$

Autor:	Andersen, N. H., Jensen, J., Jensen, T. B. S., Zimmermann, M. v., Pinholt, R., Abrahamsen, A. B., Toft, K. Noegaard, Hedegard, P., Canfield, P. C.
Jazyk:	angličtina
Rok vydání:	2006
Předmět:	Superconductivity (cond-mat.supr-con) Condensed Matter - Strongly Correlated Electrons Strongly Correlated Electrons (cond-mat.str-el) Condensed Matter - Superconductivity FOS: Physical sciences Condensed Matter::Strongly Correlated Electrons ddc:530
Zdroj:	Physical review / B 73(2), 020504 (2006). doi:10.1103/PhysRevB.73.020504
DOI:	10.1103/PhysRevB.73.020504
Popis:	We present synchrotron x-ray diffraction studies revealing that the lattice of thulium borocarbide is distorted below T_Q = 13.5 K at zero field. T_Q increases and the amplitude of the displacements is drastically enhanced, by a factor of 10 at 60 kOe, when a magnetic field is applied along [100]. The distortion occurs at the same wave vector as the antiferromagnetic ordering induced by the a-axis field. A model is presented that accounts for the properties of the quadrupolar phase and explains the peculiar behavior of the antiferromagnetic ordering previously observed in this compound. Comment: submitted to PRL
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d918f1daebea53016aa90801dd8308c0 https://bib-pubdb1.desy.de/record/79144 Zobrazit plný text záznamu