A SR study of the metamagnetic phase transition in the electron-transfer salt

✍ Scribed by Stephen J. Blundell; Tom Lancaster; Michael L. Brooks; Francis L. Pratt; Michelle L. Taliaferro; Joel S. Miller

• Publisher: Elsevier Science
• Year: 2006
• Tongue: English
• Weight: 354 KB
• Volume: 374-375
• Category: Article
• ISSN: 0921-4526
• DOI: 10.1016/j.physb.2005.11.029

✦ Synopsis

We have used muon-spin rotation (mSR) to study the metamagnetic transition in ½FeCp à 2 ½TCNQ where Cp à ¼ C 5 Me 5 and TCNQ is 7,7,8,8-tetracyano-p-quinodimethane. This electron-transfer salt contains parallel chains of alternating ½FeCp à 2 þ cations and ½TCNQ À anions. Our zero-field mSR data show the 2.5 K transition and show that a static, but disordered, internal field distribution develops below this. High-transverse-field mSR has also been used to study the metamagnetic transition and the data illustrate how the internal field distribution changes through this transition.