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Slow Electronic Dynamics in the Paramagnetic State of UTe2.

Slow Electronic Dynamics in the Paramagnetic State of UTe2.

Authors :
Tokunaga, Yo
Sakai, Hironori
Kambe, Shinsaku
Haga, Yoshinori
Tokiwa, Yoshifumi
Opletal, Petr
Fujibayashi, Hiroki
Kinjo, Katsuki
Kitagawa, Shunsaku
Ishida, Kenji
Nakamura, Ai
Shimizu, Yusei
Homma, Yoshiya
Li, Dexin
Honda, Fuminori
Aoki, Dai
Source :
Journal of the Physical Society of Japan; 2/15/2022, Vol. 91 Issue 2, p1-5, 5p
Publication Year :
2022

Abstract

<superscript>125</superscript>Te NMR experiments in field (H) applied along the easy magnetization axis (the a-axis) revealed slow electronic dynamics developing in the paramagnetic state of UTe<subscript>2</subscript>. The observed slow fluctuations are concerned with a successive growth of long-range electronic correlations below 30–40 K, where the spin susceptibility along the hard magnetization axis (the b-axis) shows a broad maximum. The experiments also imply that tiny amounts of disorder or defects locally disturb the long-range electronic correlations and develop an inhomogeneous electronic state at low temperatures, leading to a low temperature upturn observed in the bulk-susceptibility in H || a. We suggest that UTe<subscript>2</subscript> would be located on the paramagnetic side near an electronic phase boundary, where either magnetic or Fermi-surface instability would be the origin of the characteristic fluctuations. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00319015
Volume :
91
Issue :
2
Database :
Complementary Index
Journal :
Journal of the Physical Society of Japan
Publication Type :
Academic Journal
Accession number :
154969918
Full Text :
https://doi.org/10.7566/JPSJ.91.023707