Ferroquadrupolar ordering in PrTi 2Al 20

Taku J. Sato, Soshi Ibuka, Yusuke Nambu, Teruo Yamazaki, Tao Hong, Akito Sakai, Satoru Nakatsuji

Research output: Contribution to journalArticle

50 Citations (Scopus)

Abstract

The origin of the nonmagnetic phase transition in PrTi 2Al 20, reported earlier in a macroscopic study, has been asserted microscopically using elastic and inelastic neutron scattering techniques. It has been shown spectroscopically that the crystalline-electric-field ground state is a nonmagnetic Γ 3 doublet, whereas the excited states are two triplets (Γ 4 and Γ 5) and a singlet (Γ 1). The diffraction experiment under external magnetic field shows that the nonmagnetic transition is indeed ferroquadrupolar ordering, which takes place as a consequence of cooperative removal of the ground-state-doublet degeneracy. It is therefore concluded that PrTi 2Al 20 is another rare example of Pr compounds exhibiting nonmagnetic quadrupolar order.

Original languageEnglish
Article number184419
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume86
Issue number18
DOIs
Publication statusPublished - 2012 Nov 16
Externally publishedYes

Fingerprint

Ground state
Inelastic neutron scattering
ground state
Excited states
inelastic scattering
neutron scattering
Diffraction
Phase transitions
Electric fields
Magnetic fields
Crystalline materials
electric fields
diffraction
magnetic fields
excitation
Experiments

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Sato, T. J., Ibuka, S., Nambu, Y., Yamazaki, T., Hong, T., Sakai, A., & Nakatsuji, S. (2012). Ferroquadrupolar ordering in PrTi 2Al 20 Physical Review B - Condensed Matter and Materials Physics, 86(18), [184419]. https://doi.org/10.1103/PhysRevB.86.184419

Ferroquadrupolar ordering in PrTi 2Al 20 . / Sato, Taku J.; Ibuka, Soshi; Nambu, Yusuke; Yamazaki, Teruo; Hong, Tao; Sakai, Akito; Nakatsuji, Satoru.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 86, No. 18, 184419, 16.11.2012.

Research output: Contribution to journalArticle

Sato, TJ, Ibuka, S, Nambu, Y, Yamazaki, T, Hong, T, Sakai, A & Nakatsuji, S 2012, 'Ferroquadrupolar ordering in PrTi 2Al 20 ', Physical Review B - Condensed Matter and Materials Physics, vol. 86, no. 18, 184419. https://doi.org/10.1103/PhysRevB.86.184419
Sato, Taku J. ; Ibuka, Soshi ; Nambu, Yusuke ; Yamazaki, Teruo ; Hong, Tao ; Sakai, Akito ; Nakatsuji, Satoru. / Ferroquadrupolar ordering in PrTi 2Al 20 In: Physical Review B - Condensed Matter and Materials Physics. 2012 ; Vol. 86, No. 18.
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