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Title: Fermi Surface and Van Hove Singularities in the Itinerant Metamagnet Sr(3)Ru(2)O(7)

Abstract

The low-energy electronic structure of the itinerant metamagnet Sr{sub 3}Ru{sub 2}O{sub 7} is investigated by angle resolved photoemission and density functional calculations. We find well-defined quasiparticle bands with resolution limited line widths and Fermi velocities up to an order of magnitude lower than in single layer Sr{sub 2}RuO{sub 4}. The complete topography, the cyclotron masses and the orbital character of the Fermi surface are determined, in agreement with bulk sensitive de Haas - van Alphen measurements. An analysis of the dxy band dispersion reveals a complex density of states with van Hove singularities (vHs) near the Fermi level; a situation which is favorable for magnetic instabilities.

Authors:
; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1001200
Report Number(s):
SLAC-PUB-14054
TRN: US1100292
DOE Contract Number:  
AC02-76SF00515
Resource Type:
Journal Article
Journal Name:
Phys.Rev.Lett.101:026407,2008
Additional Journal Information:
Journal Name: Phys.Rev.Lett.101:026407,2008
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; CYCLOTRONS; ELECTRONIC STRUCTURE; FERMI LEVEL; FUNCTIONALS; LINE WIDTHS; PHOTOEMISSION; RESOLUTION; TOPOGRAPHY; Other,MATSCI

Citation Formats

Tamai, A., Allan, M. P., Mercure, J. F., /Scottish U. Research Reactor Ctr. /St. Andrews U., Meevasana, W., Dunkel, R., Lu, D. H., /Physics Intl., San Leandro /Stanford U., Phys. Dept. /SLAC, SSRL, Perry, R. S., /Scottish U. Research Reactor Ctr. /Edinburgh U., Mackenzie, A. P., /Scottish U. Research Reactor Ctr. /St. Andrews U., Singh, D. J., /Hong Kong, City U. /Oak Ridge, Shen, Z. -X., /Physics Intl., San Leandro /Stanford U., Phys. Dept. /SLAC, SSRL, Baumberger, F., and /Scottish U. Research Reactor Ctr. /St. Andrews U. Fermi Surface and Van Hove Singularities in the Itinerant Metamagnet Sr(3)Ru(2)O(7). United States: N. p., 2011. Web.
Tamai, A., Allan, M. P., Mercure, J. F., /Scottish U. Research Reactor Ctr. /St. Andrews U., Meevasana, W., Dunkel, R., Lu, D. H., /Physics Intl., San Leandro /Stanford U., Phys. Dept. /SLAC, SSRL, Perry, R. S., /Scottish U. Research Reactor Ctr. /Edinburgh U., Mackenzie, A. P., /Scottish U. Research Reactor Ctr. /St. Andrews U., Singh, D. J., /Hong Kong, City U. /Oak Ridge, Shen, Z. -X., /Physics Intl., San Leandro /Stanford U., Phys. Dept. /SLAC, SSRL, Baumberger, F., & /Scottish U. Research Reactor Ctr. /St. Andrews U. Fermi Surface and Van Hove Singularities in the Itinerant Metamagnet Sr(3)Ru(2)O(7). United States.
Tamai, A., Allan, M. P., Mercure, J. F., /Scottish U. Research Reactor Ctr. /St. Andrews U., Meevasana, W., Dunkel, R., Lu, D. H., /Physics Intl., San Leandro /Stanford U., Phys. Dept. /SLAC, SSRL, Perry, R. S., /Scottish U. Research Reactor Ctr. /Edinburgh U., Mackenzie, A. P., /Scottish U. Research Reactor Ctr. /St. Andrews U., Singh, D. J., /Hong Kong, City U. /Oak Ridge, Shen, Z. -X., /Physics Intl., San Leandro /Stanford U., Phys. Dept. /SLAC, SSRL, Baumberger, F., and /Scottish U. Research Reactor Ctr. /St. Andrews U. 2011. "Fermi Surface and Van Hove Singularities in the Itinerant Metamagnet Sr(3)Ru(2)O(7)". United States. https://www.osti.gov/servlets/purl/1001200.
@article{osti_1001200,
title = {Fermi Surface and Van Hove Singularities in the Itinerant Metamagnet Sr(3)Ru(2)O(7)},
author = {Tamai, A. and Allan, M. P. and Mercure, J. F. and /Scottish U. Research Reactor Ctr. /St. Andrews U. and Meevasana, W. and Dunkel, R. and Lu, D. H. and /Physics Intl., San Leandro /Stanford U., Phys. Dept. /SLAC, SSRL and Perry, R. S. and /Scottish U. Research Reactor Ctr. /Edinburgh U. and Mackenzie, A. P. and /Scottish U. Research Reactor Ctr. /St. Andrews U. and Singh, D. J. and /Hong Kong, City U. /Oak Ridge and Shen, Z. -X. and /Physics Intl., San Leandro /Stanford U., Phys. Dept. /SLAC, SSRL and Baumberger, F. and /Scottish U. Research Reactor Ctr. /St. Andrews U.},
abstractNote = {The low-energy electronic structure of the itinerant metamagnet Sr{sub 3}Ru{sub 2}O{sub 7} is investigated by angle resolved photoemission and density functional calculations. We find well-defined quasiparticle bands with resolution limited line widths and Fermi velocities up to an order of magnitude lower than in single layer Sr{sub 2}RuO{sub 4}. The complete topography, the cyclotron masses and the orbital character of the Fermi surface are determined, in agreement with bulk sensitive de Haas - van Alphen measurements. An analysis of the dxy band dispersion reveals a complex density of states with van Hove singularities (vHs) near the Fermi level; a situation which is favorable for magnetic instabilities.},
doi = {},
url = {https://www.osti.gov/biblio/1001200}, journal = {Phys.Rev.Lett.101:026407,2008},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 04 00:00:00 EST 2011},
month = {Tue Jan 04 00:00:00 EST 2011}
}