Origin of the net magnetic moment in LaCoO3

Kaminsky, G.; Belanger, David P.; Ye, Feng; Fernandez-Baca, Jaime A.; Wang, Jinchen; Matsuda, Masaaki; Yan, Jiaqiang

doi:10.1103/PhysRevB.97.024418

Title: Origin of the net magnetic moment in ${LaCoO}_{3}$

Journal Article · Fri Jan 19 00:00:00 EST 2018 · Physical Review B

DOI:https://doi.org/10.1103/PhysRevB.97.024418· OSTI ID:1427707

Kaminsky, G. ^[1]; Belanger, David P. ^[1];

^[2];

^[2]; Wang, Jinchen ^[3];

^[2];

^[2]

Univ. of California, Santa Cruz, CA (United States)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Renmin Univ. of China, Beijing (China)

We use polarized neutron scattering to characterize the Bragg scattering intensity below T_C=89.5 K at the (1,0,0) pseudocubic nuclear Bragg point of LaCoO₃. Upon cooling in a field (FC), a net magnetic moment is apparent in Bragg scattering intensity, just as it was in previous magnetization measurements. Critical behavior associated with the net moment near T_C upon cooling in small applied fields rapidly rounds with increasing field strength. We show, using a mean-field calculation, that this net moment can develop in a metastable state that forms upon FC, even when all the interactions in the system are antiferromagnetic.

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Research Organization:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC05-00OR22725

OSTI ID:: 1427707

Alternate ID(s):: OSTI ID: 1417507

Journal Information:: Physical Review B, Vol. 97, Issue 2; ISSN 2469-9950

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 2 works

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Title: Origin of the net magnetic moment in ${LaCoO}_{3}$