Competing magnetic fluctuations in Sr3 Ru2 O7 probed by Ti doping

J. Hooper, M. H. Fang, M. Zhou, D. Fobes, N. Dang, Z. Q. Mao, C. M. Feng, Z. A. Xu, M. H. Yu, C. J. O'Connor, G. J. Xu, N. Andersen, M. Salamon

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

We report the effect of nonmagnetic Ti4+ impurities on the electronic and magnetic properties of Sr3 Ru2 O7. Small amounts of Ti suppress the characteristic peak in magnetic susceptibility near 16 K and result in a sharp upturn in specific heat. The metamagnetic quantum phase transition and related anomalous features are quickly smeared out by small amounts of Ti. These results provide strong evidence for the existence of competing magnetic fluctuations in the ground state of Sr3 Ru2 O7. Ti doping suppresses the low-temperature antiferromagnetic interactions that arise from Fermi surface nesting, leaving the system in a state dominated by ferromagnetic fluctuations.

Original languageEnglish (US)
Article number060403
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume75
Issue number6
DOIs
StatePublished - Feb 7 2007

Fingerprint

Fermi surface
Magnetic susceptibility
Electronic properties
Ground state
Specific heat
Magnetic properties
Phase transitions
Doping (additives)
Impurities
Fermi surfaces
specific heat
magnetic properties
magnetic permeability
impurities
Temperature
ground state
electronics
interactions

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Hooper, J. ; Fang, M. H. ; Zhou, M. ; Fobes, D. ; Dang, N. ; Mao, Z. Q. ; Feng, C. M. ; Xu, Z. A. ; Yu, M. H. ; O'Connor, C. J. ; Xu, G. J. ; Andersen, N. ; Salamon, M. / Competing magnetic fluctuations in Sr3 Ru2 O7 probed by Ti doping. In: Physical Review B - Condensed Matter and Materials Physics. 2007 ; Vol. 75, No. 6.
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author = "J. Hooper and Fang, {M. H.} and M. Zhou and D. Fobes and N. Dang and Mao, {Z. Q.} and Feng, {C. M.} and Xu, {Z. A.} and Yu, {M. H.} and O'Connor, {C. J.} and Xu, {G. J.} and N. Andersen and M. Salamon",
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Hooper, J, Fang, MH, Zhou, M, Fobes, D, Dang, N, Mao, ZQ, Feng, CM, Xu, ZA, Yu, MH, O'Connor, CJ, Xu, GJ, Andersen, N & Salamon, M 2007, 'Competing magnetic fluctuations in Sr3 Ru2 O7 probed by Ti doping', Physical Review B - Condensed Matter and Materials Physics, vol. 75, no. 6, 060403. https://doi.org/10.1103/PhysRevB.75.060403

Competing magnetic fluctuations in Sr3 Ru2 O7 probed by Ti doping. / Hooper, J.; Fang, M. H.; Zhou, M.; Fobes, D.; Dang, N.; Mao, Z. Q.; Feng, C. M.; Xu, Z. A.; Yu, M. H.; O'Connor, C. J.; Xu, G. J.; Andersen, N.; Salamon, M.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 75, No. 6, 060403, 07.02.2007.

Research output: Contribution to journalArticle

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T1 - Competing magnetic fluctuations in Sr3 Ru2 O7 probed by Ti doping

AU - Hooper, J.

AU - Fang, M. H.

AU - Zhou, M.

AU - Fobes, D.

AU - Dang, N.

AU - Mao, Z. Q.

AU - Feng, C. M.

AU - Xu, Z. A.

AU - Yu, M. H.

AU - O'Connor, C. J.

AU - Xu, G. J.

AU - Andersen, N.

AU - Salamon, M.

PY - 2007/2/7

Y1 - 2007/2/7

N2 - We report the effect of nonmagnetic Ti4+ impurities on the electronic and magnetic properties of Sr3 Ru2 O7. Small amounts of Ti suppress the characteristic peak in magnetic susceptibility near 16 K and result in a sharp upturn in specific heat. The metamagnetic quantum phase transition and related anomalous features are quickly smeared out by small amounts of Ti. These results provide strong evidence for the existence of competing magnetic fluctuations in the ground state of Sr3 Ru2 O7. Ti doping suppresses the low-temperature antiferromagnetic interactions that arise from Fermi surface nesting, leaving the system in a state dominated by ferromagnetic fluctuations.

AB - We report the effect of nonmagnetic Ti4+ impurities on the electronic and magnetic properties of Sr3 Ru2 O7. Small amounts of Ti suppress the characteristic peak in magnetic susceptibility near 16 K and result in a sharp upturn in specific heat. The metamagnetic quantum phase transition and related anomalous features are quickly smeared out by small amounts of Ti. These results provide strong evidence for the existence of competing magnetic fluctuations in the ground state of Sr3 Ru2 O7. Ti doping suppresses the low-temperature antiferromagnetic interactions that arise from Fermi surface nesting, leaving the system in a state dominated by ferromagnetic fluctuations.

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