Skip navigation
  • Home
  • Browse
    • Communities
      & Collections
    • Browse Items by:
    • Publication Date
    • Author
    • Title
    • Subject
    • Department
  • Sign on to:
    • My MacSphere
    • Receive email
      updates
    • Edit Profile


McMaster University Home Page
  1. MacSphere
  2. Open Access Dissertations and Theses Community
  3. Open Access Dissertations and Theses
Please use this identifier to cite or link to this item: http://hdl.handle.net/11375/8568
Full metadata record
DC FieldValueLanguage
dc.contributor.advisorCollins, M.F.en_US
dc.contributor.authorKhatamian, Djamshiden_US
dc.date.accessioned2014-06-18T16:43:17Z-
dc.date.available2014-06-18T16:43:17Z-
dc.date.created2010-12-24en_US
dc.date.issued1976-09en_US
dc.identifier.otheropendissertations/3763en_US
dc.identifier.other4780en_US
dc.identifier.other1710809en_US
dc.identifier.urihttp://hdl.handle.net/11375/8568-
dc.description.abstract<p>Two of the magnetic properties of antiferromagnet, CsMnF₃, were studied by thermal neutron scattering techniques.</p> <p>Spin wave-dispersion curves, along the two high symmetry directions (00ξ) and (ξ00), were determined and were satisfactorily fitted to a theoretical model with two nearest neighbour exchange constants, J₁₂ = 0.134±.003 THz and J₂₃ = 0.094±.0105 THz, and one second nearest neighbour exchange constant, J₃₅=-0.0138±.003 THz. The spin wave properties can be described in terms of an effective anisotropy field of -2700±900 Oe along the crystal c axis. This field constrains the spins to the basal plane of the crystal. The calculations show that magnetic dipole-dipole interactions, alone, provide enough anisotropy to account for the observed results.</p> <p>The sublattice magnetization, over the temperature range of 6.8 K to 72.2 K, was measured. This shows a critical phase transition with a critical exponent β given by β = 0.317±.009.</p>en_US
dc.subjectPhysicsen_US
dc.subjectPhysicsen_US
dc.titleAntiferromagnetism in CsMnF₃en_US
dc.typethesisen_US
dc.contributor.departmentPhysicsen_US
dc.description.degreeDoctor of Philosophy (PhD)en_US
Appears in Collections:Open Access Dissertations and Theses

Files in This Item:
File SizeFormat 
fulltext.pdf
Open Access
2.91 MBAdobe PDFView/Open
Show simple item record Statistics


Items in MacSphere are protected by copyright, with all rights reserved, unless otherwise indicated.

Sherman Centre for Digital Scholarship     McMaster University Libraries
©2022 McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4L8 | 905-525-9140 | Contact Us | Terms of Use & Privacy Policy | Feedback

Report Accessibility Issue