English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Exchange interactions in Ca3Co2O6 probed locally by NMR

Allodi, G., Santini, P., Carretta, S., Agrestini, S., Mazzoli, C., Bombardi, A., et al. (2014). Exchange interactions in Ca3Co2O6 probed locally by NMR. Physical Review B, 89(10): 104401, pp. 1-5. doi:10.1103/PhysRevB.89.104401.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0018-86F8-1 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0018-86FD-8
Genre: Journal Article

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Allodi, G.1, Author
Santini, P., Author
Carretta, S.1, Author
Agrestini, S.2, Author              
Mazzoli, C.1, Author
Bombardi, A.1, Author
Lees, M. R.1, Author
De Renzi, R.1, Author
Affiliations:
1external, ou_persistent22              
2Stefano Agrestini, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863459              

Content

show
hide
Free keywords: -
 Abstract: We have measured the nuclear spin-lattice relaxation of Co-59 in the geometrically frustrated Ising-type spin-chain system Ca3Co2O6 as a function of temperature and applied magnetic field. In the nearly-saturated ferrimagnetic and ferromagnetic regimes considered here, the field-dependent energy scales governing the spin-lattice relaxation rates reflect the energy cost of a spin flip in the Co ions adjacent to the probed nuclei. This results in a thermally activated form for the nuclear relaxation rates, which can be exploited as a local probe of the exchange interactions. In particular, the measurements enable the values of intra-and interchain exchange constants J(1), J(2) + J(3) to be directly extracted from the data. By using a quasi-one-dimensional model, we then determine the value of J(2) consistent with the spin-density-wave order observed in zero field.

Details

show
hide
Language(s):
 Dates: 2014-03-03
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Physical Review B
  Other : Phys. Rev. B
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Woodbury, NY : American Physical Society
Pages: - Volume / Issue: 89 (10) Sequence Number: 104401 Start / End Page: 1 - 5 Identifier: ISSN: 1098-0121
CoNE: /journals/resource/954925225008