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  Weak ferromagnetism and magnetically modulated microwave absorption at low magnetic fields in 1,3,5-triphenyl-6-oxoverdazyl

Kremer, R. K., Kanellakopulos, B., Bele, P., Brunner, H., & Neugebauer, F. A. (1994). Weak ferromagnetism and magnetically modulated microwave absorption at low magnetic fields in 1,3,5-triphenyl-6-oxoverdazyl. Chemical Physics Letters, 230(3), 255-259. doi:10.1016/0009-2614(94)01137-0.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0019-A89F-8 Version Permalink: https://hdl.handle.net/11858/00-001M-0000-002D-C167-1
Genre: Journal Article

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ChemPhysLett_230_1994_255.pdf (Any fulltext), 402KB
 
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 Creators:
Kremer, Reinhard K., Author
Kanellakopulos, Basil, Author
Bele, Petra1, Author           
Brunner, Hermann, Author
Neugebauer, Franz A.2, Author           
Affiliations:
1Department of Biomolecular Mechanisms, Max Planck Institute for Medical Research, Max Planck Society, ou_1497700              
2Department of Organic Chemistry, Max Planck Institute for Medical Research, Max Planck Society, ou_1497706              

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 Abstract: The magnetic susceptibility and microwave properties of powder samples of 1,3,5-triphenyl-6-oxoverdazyl were investigated between room temperature and 1.8 K. The high-temperature susceptibility follows a Curie-Weiss law with a Curie constant of 0.38(1) emu K mol−1 and a Weiss constant of −12(2) K. At low temperature we find 1D magnetic behaviour evidenced by a broad maximum in the susceptibility. Below 4.9 K weak ferromagnetism is detected which is attributed to a canting of the antiferromagnetic sublattices of about 0.13°. Strong nonresonant microwave absorption appears below 4 K which exhibits a hysteresis when measured in a small scanned external field. Possible origins of the weak ferromagnetism and the nonresonant microwave absorption are discussed.

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Language(s): eng - English
 Dates: 1994-08-222002-03-221994-11-25
 Publication Status: Issued
 Pages: 5
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: eDoc: 665379
DOI: 10.1016/0009-2614(94)01137-0
Other: 6625
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Title: Chemical Physics Letters
  Other : Chem. Phys. Lett.
Source Genre: Journal
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Publ. Info: Amsterdam : North-Holland
Pages: - Volume / Issue: 230 (3) Sequence Number: - Start / End Page: 255 - 259 Identifier: ISSN: 0009-2614
CoNE: https://pure.mpg.de/cone/journals/resource/954925389241