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Dynamic lattice distortions in Sr2RuO4: microscopic studies by perturbed angular correlation spectroscopy and ab initio calculations

SN Mishra, M Rots and Stefaan Cottenier UGent (2010) JOURNAL OF PHYSICS-CONDENSED MATTER. 22(38).
abstract
Applying time differential perturbed angular correlation (TDPAC) spectroscopy and ab initio calculations, we have investigated possible lattice instabilities in Sr2RuO4 by studying the electric quadrupole interaction of a Cd-111 probe at the Ru site. We find evidence for a dynamic lattice distortion, revealed from the observations of: (i) a rapidly fluctuating electric-field gradient (EFG) tensor showing non-Arrhenius relaxation, (ii) an anomalous temperature dependence of the quadrupole interaction frequency, and (iii) a monotonic increase of the EFG asymmetry (eta) below 300 K. We argue that the observed dynamic lattice distortion is caused by strong spin fluctuations associated with the inherent magnetic instability in Sr2RuO4.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
SUPERCONDUCTOR SR2RUO4, QUADRUPOLE INTERACTIONS, STOCHASTIC-MODEL, APPROXIMATION, FLUCTUATIONS, BEHAVIOR, METALS, NMR, ELECTRIC-FIELD GRADIENT
journal title
JOURNAL OF PHYSICS-CONDENSED MATTER
J. Phys.-Condes. Matter
volume
22
issue
38
article number
385602
pages
8 pages
Web of Science type
Article
Web of Science id
000281642800023
JCR category
PHYSICS, CONDENSED MATTER
JCR impact factor
2.332 (2010)
JCR rank
18/67 (2010)
JCR quartile
2 (2010)
ISSN
0953-8984
DOI
10.1088/0953-8984/22/38/385602
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
1069834
handle
http://hdl.handle.net/1854/LU-1069834
date created
2010-11-04 09:30:51
date last changed
2016-12-21 15:42:38
@article{1069834,
  abstract     = {Applying time differential perturbed angular correlation (TDPAC) spectroscopy and ab initio calculations, we have investigated possible lattice instabilities in Sr2RuO4 by studying the electric quadrupole interaction of a Cd-111 probe at the Ru site. We find evidence for a dynamic lattice distortion, revealed from the observations of: (i) a rapidly fluctuating electric-field gradient (EFG) tensor showing non-Arrhenius relaxation, (ii) an anomalous temperature dependence of the quadrupole interaction frequency, and (iii) a monotonic increase of the EFG asymmetry (eta) below 300 K. We argue that the observed dynamic lattice distortion is caused by strong spin fluctuations associated with the inherent magnetic instability in Sr2RuO4.},
  articleno    = {385602},
  author       = {Mishra, SN and Rots, M and Cottenier, Stefaan},
  issn         = {0953-8984},
  journal      = {JOURNAL OF PHYSICS-CONDENSED MATTER},
  keyword      = {SUPERCONDUCTOR SR2RUO4,QUADRUPOLE INTERACTIONS,STOCHASTIC-MODEL,APPROXIMATION,FLUCTUATIONS,BEHAVIOR,METALS,NMR,ELECTRIC-FIELD GRADIENT},
  language     = {eng},
  number       = {38},
  pages        = {8},
  title        = {Dynamic lattice distortions in Sr2RuO4: microscopic studies by perturbed angular correlation spectroscopy and ab initio calculations},
  url          = {http://dx.doi.org/10.1088/0953-8984/22/38/385602},
  volume       = {22},
  year         = {2010},
}

Chicago
Mishra, SN, M Rots, and Stefaan Cottenier. 2010. “Dynamic Lattice Distortions in Sr2RuO4: Microscopic Studies by Perturbed Angular Correlation Spectroscopy and Ab Initio Calculations.” Journal of Physics-condensed Matter 22 (38).
APA
Mishra, S., Rots, M., & Cottenier, S. (2010). Dynamic lattice distortions in Sr2RuO4: microscopic studies by perturbed angular correlation spectroscopy and ab initio calculations. JOURNAL OF PHYSICS-CONDENSED MATTER, 22(38).
Vancouver
1.
Mishra S, Rots M, Cottenier S. Dynamic lattice distortions in Sr2RuO4: microscopic studies by perturbed angular correlation spectroscopy and ab initio calculations. JOURNAL OF PHYSICS-CONDENSED MATTER. 2010;22(38).
MLA
Mishra, SN, M Rots, and Stefaan Cottenier. “Dynamic Lattice Distortions in Sr2RuO4: Microscopic Studies by Perturbed Angular Correlation Spectroscopy and Ab Initio Calculations.” JOURNAL OF PHYSICS-CONDENSED MATTER 22.38 (2010): n. pag. Print.