Local metallic and structural properties of the strongly correlated metal LaNiO3 using 8Li β-NMR

被引：9

作者：

Karner, Victoria L. ^{[1
,2
]}

Chatzichristos, Aris ^{[2
,3
]}

Cortie, David L. ^{[1
,2
,3
,7
]}

Dehn, Martin H. ^{[2
,3
]}

Foyevtsov, Oleksandr ^{[2
,3
]}

Foyevtsova, Kateryna ^{[2
,3
]}

Fujimoto, Derek ^{[2
,3
]}

Kiefl, Robert F. ^{[2
,3
,4
]}

Levy, C. D. Philip ^{[4
]}

Li, Ruohong ^{[4
]}

McFadden, Ryan M. L. ^{[1
,2
]}

Morris, Gerald D. ^{[4
]}

Pearson, Matthew R. ^{[4
]}

Stachura, Monika ^{[4
]}

Ticknor, John O. ^{[1
,2
]}

Cristiani, Georg ^{[5
]}

Logvenov, Gennady ^{[5
]}

Wrobel, Friedrike ^{[5
]}

Keimer, Bernhard ^{[5
]}

Zhang, Junjie ^{[6
,8
]}

Mitchell, John F. ^{[6
]}

MacFarlane, W. Andrew ^{[1
,2
,4
]}

机构：

[1] Univ British Columbia, Dept Chem, Vancouver, BC V6T 1Z1, Canada

[2] Univ British Columbia, Stewart Blusson Quantum Matter Inst, Vancouver, BC V6T 1Z4, Canada

[3] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z1, Canada

[4] TRIUMF, 4004 Wesbrook Mall, Vancouver, BC V6T 2A3, Canada

[5] Max Planck Inst Solid State Res, D-70569 Stuttgart, Germany

[6] Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA

[7] Univ Wollongong, Inst Superconducting & Elect Mat, Australian Inst Innovat Mat, North Wollongong, NSW 2500, Australia

[8] Oak Ridge Natl Lab, Mat Sci & Technol Div, POB 2009, Oak Ridge, TN 37830 USA

来源：

PHYSICAL REVIEW B | 2019年 / 100卷 / 16期

基金：

加拿大自然科学与工程研究理事会;

关键词：

TOTAL-ENERGY CALCULATIONS; MUON-SPIN-RELAXATION; CATHODE MATERIALS; PEROVSKITE; TRANSITIONS;

D O I：

10.1103/PhysRevB.100.165109

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report beta-detected NMR of ion-implanted Li-8 in a single crystal and thin film of the strongly correlated metal LaNiO3. Spin-lattice relaxation measurements reveal two distinct local environments, both metallic as evident from T-linear Korringa 1/T-1 below 200 K with slopes comparable to other metals. A small approximately temperature-independent Knight shift of similar to 74 ppm is observed, yielding a normalized Korringa product characteristic of substantial antiferromagnetic correlations. We find no evidence for a magnetic transition from 4 to 310 K. The similarity of these features in the two very different samples indicates that they are intrinsic and unrelated to dilute oxygen vacancies. We attribute the two environments to two distinct but similar crystallographic Li-8 sites and not to any form of phase inhomogeneity, but this is inconsistent with the conventional rhombohedral structure of LaNiO3, and also cannot be simply explained by the common alternative orthorhombic or monoclinic distortions.

引用

页数：10