Quick search Find article
Quick search
Find article

Probing the involvement of non-magnetic Sr ion in the ferromagnetic transition of SrRuO3, using XAFS

Debdutta Lahiri1, Tomohiro Shibata2,3, Soma Chattopadhyay2,3, Ravi Shankar Singh4, Surinder M Sharma1 and Kalobaran Maiti4

Show affiliations


Recent calculations by Maiti et al. have shown that non-magnetic ions like Sr/Ca in Sr/Ca ruthenates may not be mere spectators in the magnetic transitions but their strong hybridization with O atoms may modify the magnetic ground state by distorting the Ru-O-Ru bond angle. Our XAFS results at Sr and Ru K-edges on SrRuO3 indeed demonstrate that the Debye Waller factor for the Sr-coupled bonds viz. Sr-Sr evolve most significantly across the ferromagnetic transition, almost replicating the magnetization curve while the Ru-octahedra evolves only gradually. This clearly establishes the definite role of Sr disorder in the ferromagnetic transition.


PACS

75.30.Kz Magnetic phase boundaries (including magnetic transitions, metamagnetism, etc.)

78.70.Dm X-ray absorption spectra

75.60.Ej Magnetization curves, hysteresis, Barkhausen and related effects

61.50.Lt Crystal binding; cohesive energy

61.05.cj X-ray absorption spectroscopy: EXAFS, NEXAFS, XANES, etc.

Subjects

Condensed matter: electrical, magnetic and optical

Condensed matter: structural, mechanical & thermal

Dates

Issue 1 (2009)



Users also read

What's this?
This innovative new feature generates a list of articles 'also read' by other users based on them reading the original article. Article abstracts citations and references are all considered and weighted accordingly. We hope that this will help you find relevant papers for your research.

  1. Copper defects inside AlN:Cu nanorods – XANES and LAPW study

View by subject




Export






Please login to access our web services, or create an account if you don't yet have one.

You must have cookies enabled in your web browser to be able to login.

Username
Password

Forgotten your password? Get a new one here.