39K and 77Se NMR study of the paraelectric-to-incommensurate phase transition 
of K2SeO4

Topič, B.; von Kienlin, A.; Gölzhäuser, A.; Haeberlen, U.; Blinc, R.

doi:10.1103/physrevb.38.8625

Item

ITEM ACTIONSEXPORT

Add to Basket

Local TagsRelease HistoryDetailsSummary

Released

Journal Article

39K and 77Se NMR study of the paraelectric-to-incommensurate phase transition of K2SeO4

MPS-Authors

/persons/resource/persons273731

Topič, B.
Department of Molecular Physics, Max Planck Institute for Medical Research, Max Planck Society;

/persons/resource/persons213430

von Kienlin, A.
Department of Molecular Physics, Max Planck Institute for Medical Research, Max Planck Society;

/persons/resource/persons213888

Gölzhäuser, A.
Max Planck Institute for Medical Research, Max Planck Society;

/persons/resource/persons93258

Haeberlen, U.
Department of Molecular Physics, Max Planck Institute for Medical Research, Max Planck Society;

External Resource

https://journals.aps.org/prb/abstract/10.1103/PhysRevB.38.8625
(Any fulltext)

https://journals.aps.org/prb/pdf/10.1103/PhysRevB.38.8625
(Any fulltext)

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

Fulltext (public)

There are no public fulltexts stored in PuRe

Supplementary Material (public)

There is no public supplementary material available

Citation

Topič, B., von Kienlin, A., Gölzhäuser, A., Haeberlen, U., & Blinc, R. (1988). 39K and 77Se NMR study of the paraelectric-to-incommensurate phase transition of K2SeO4. Physical review. B, Condensed matter, 38(13), 8625-8632. doi:10.1103/physrevb.38.8625.

Cite as: https://hdl.handle.net/21.11116/0000-000A-6E6B-4

Abstract

The 39K quadrupole-coupling and chemical-shift tensors have been determined from the angular dependences of the 39K line shifts of the 39K±(1/2⇆∓ 1) / 2 central NMR transitions in the paraelectric (P) and incommensurate (I) phases of K2SeO4. The main effect of the P-I phase transition on these tensors is the appearance of nonzero off-diagonal elements Vab and Vbc which reflects the destruction of mirror planes by frozen-in soft-mode displacements along the b axis. From the angular dependences of the 77Se line shifts the 77Se chemical-shift tensor has been determined in the paraelectric phase of K2SeO4. In contrast to the 39K quadrupole-coupling and chemical-shift tensors it remains unaffected on going through TI and changes only slightly at TC.