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  Effect of electron doping the metamagnet Sr3-yLayRu2O7

Farrell, J., Perry, R. S., Rost, A., Mercure, J. F., Kikugawa, N., Grigera, S. A., et al. (2008). Effect of electron doping the metamagnet Sr3-yLayRu2O7. Physical Review B, 78(18): 180409, pp. 1-4. doi:10.1103/PhysRevB.78.180409.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0018-F211-B Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0018-F215-3
Genre: Journal Article

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 Creators:
Farrell, J.1, Author
Perry, R. S.1, Author
Rost, A.1, Author
Mercure, J. F.1, Author
Kikugawa, N.1, Author
Grigera, S. A.1, Author
Mackenzie, A. P.2, Author              
Affiliations:
1external, ou_persistent22              
2External Organizations, ou_persistent22              

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 Abstract: We study the effects of adding electrons to the conduction bands of the itinerant metamagnet Sr(3)Ru(2)O(7) using substitution of La(3+) onto the Sr(2+) site. Small changes to the chemical potential have a large effect: adding only 0.03 electrons per Ru reduces the electronic specific-heat coefficient by 30%, but makes no corresponding change to the temperature (similar to 8 K) at which the electronic specific-heat coefficient shows its maximum. The observations are incompatible with a simple rigid-band shift, raising the possibility that a many-body resonance plays a key role in the physics of Sr(3)Ru(2)O(7).

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 Dates: 2008-11-14
 Publication Status: Published in print
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Title: Physical Review B
  Other : Phys. Rev. B
Source Genre: Journal
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Publ. Info: Woodbury, NY : American Physical Society
Pages: - Volume / Issue: 78 (18) Sequence Number: 180409 Start / End Page: 1 - 4 Identifier: ISSN: 1098-0121
CoNE: /journals/resource/954925225008