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Volumn 78, Issue 18, 2008, Pages

Effect of electron doping the metamagnet Sr3-y Lay Ru2 O7

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EID: 57349163134     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.78.180409     Document Type: Article
Times cited : (9)

References (41)
  • 10
    • 0037307290 scopus 로고    scopus 로고
    • 10.1103/PhysRevB.67.085102
    • Y. B. Kim and A. J. Millis, Phys. Rev. B 67, 085102 (2003). 10.1103/PhysRevB.67.085102
    • (2003) Phys. Rev. B , vol.67 , pp. 085102
    • Kim, Y.B.1    Millis, A.J.2
  • 11
    • 2142646382 scopus 로고    scopus 로고
    • 10.1209/epl/i2003-10127-x
    • B. Binz and M. Sigrist, Europhys. Lett. 65, 816 (2004). 10.1209/epl/i2003-10127-x
    • (2004) Europhys. Lett. , vol.65 , pp. 816
    • Binz, B.1    Sigrist, M.2
  • 18
    • 29744443507 scopus 로고    scopus 로고
    • 10.1103/PhysRevB.72.115103
    • C. Honerkamp, Phys. Rev. B 72, 115103 (2005). 10.1103/PhysRevB.72.115103
    • (2005) Phys. Rev. B , vol.72 , pp. 115103
    • Honerkamp, C.1
  • 19
    • 33947585131 scopus 로고    scopus 로고
    • 10.1103/PhysRevLett.98.126407
    • H. Doh, Y. B. Kim, and K. H. Ahn, Phys. Rev. Lett. 98, 126407 (2007). 10.1103/PhysRevLett.98.126407
    • (2007) Phys. Rev. Lett. , vol.98 , pp. 126407
    • Doh, H.1    Kim, Y.B.2    Ahn, K.H.3
  • 20
    • 34347370447 scopus 로고    scopus 로고
    • 10.1103/PhysRevB.75.233102
    • H. Doh and H.-Y. Kee, Phys. Rev. B 75, 233102 (2007). 10.1103/PhysRevB.75.233102
    • (2007) Phys. Rev. B , vol.75 , pp. 233102
    • Doh, H.1    Kee, H.-Y.2
  • 21
    • 35448937184 scopus 로고    scopus 로고
    • 10.1103/PhysRevB.76.155117
    • H. Yamase, Phys. Rev. B 76, 155117 (2007). 10.1103/PhysRevB.76.155117
    • (2007) Phys. Rev. B , vol.76 , pp. 155117
    • Yamase, H.1
  • 23
    • 37149051538 scopus 로고    scopus 로고
    • 10.1103/PhysRevB.76.235112
    • C. Puetter, H. Doh, and H. Y. Kee, Phys. Rev. B 76, 235112 (2007). 10.1103/PhysRevB.76.235112
    • (2007) Phys. Rev. B , vol.76 , pp. 235112
    • Puetter, C.1    Doh, H.2    Kee, H.Y.3
  • 24
  • 28
    • 57349169742 scopus 로고    scopus 로고
    • Ph.D. thesis, University of St Andrews
    • J. Farrell, Ph.D. thesis, University of St Andrews, 2008.
    • (2008)
    • Farrell, J.1
  • 32
    • 57349160982 scopus 로고    scopus 로고
    • Although it cannot be guaranteed that even the La3+ / Sr2+ substitution has a simple effect in a system as close to a quantum critical point as Sr3 Ru2 O7, the result on Sr2 RuO4 is striking because the substitution tuned the material through a van Hove singularity, another situation in which a strong susceptibility to secondary effects is likely. None were observed, increasing confidence in the fact that straightforward carrier doping is the dominant consequence of adding La3+ ions to the Sr site.
    • Although it cannot be guaranteed that even the La3+ / Sr2+ substitution has a simple effect in a system as close to a quantum critical point as Sr3 Ru2 O7, the result on Sr2 RuO4 is striking because the substitution tuned the material through a van Hove singularity, another situation in which a strong susceptibility to secondary effects is likely. None were observed, increasing confidence in the fact that straightforward carrier doping is the dominant consequence of adding La3+ ions to the Sr site.
  • 33
    • 4944256957 scopus 로고    scopus 로고
    • 10.1016/j.jcrysgro.2004.07.082
    • R. S. Perry and Y. Maeno, J. Cryst. Growth 271, 134 (2004). 10.1016/j.jcrysgro.2004.07.082
    • (2004) J. Cryst. Growth , vol.271 , pp. 134
    • Perry, R.S.1    Maeno, Y.2
  • 36
    • 57349122737 scopus 로고    scopus 로고
    • Assuming linearized dispersions in the vicinity of the Fermi level, A=2π kF ΔE/vF, where kF and vF are the average Fermi vector and velocity of the sheet concerned and is Planck's constant. Our maximum doping corresponds to 0.03 electrons per Ru. De Haas van Alphen (Ref.) and photoemission (Ref.) studies show a number of closed pockets with { kF } and { vF } = (0.24,0.36,0.18,0.07,0.09) Å-1 and (4.0,4.0,2.6,1.3,1.3) ms-1, respectively. Taking into account corresponding "pocket degeneracies" (i.e., the number of repeats in the Brillouin zone) of (1, 1, 4, 2, 2) (Ref.), applying the procedure outlined in the text, gives ΔE 1.2 meV for y=0.06.
    • Assuming linearized dispersions in the vicinity of the Fermi level, A=2π kF ΔE/vF, where kF and vF are the average Fermi vector and velocity of the sheet concerned and is Planck's constant. Our maximum doping corresponds to 0.03 electrons per Ru. De Haas van Alphen (Ref.) and photoemission (Ref.) studies show a number of closed pockets with { kF } and { vF } = (0.24,0.36,0.18,0.07,0.09) Å-1 and (4.0,4.0,2.6,1.3,1.3) ms-1, respectively. Taking into account corresponding "pocket degeneracies" (i.e., the number of repeats in the Brillouin zone) of (1, 1, 4, 2, 2) (Ref.), applying the procedure outlined in the text, gives ΔE 1.2 meV for y=0.06.
  • 39
    • 57349188241 scopus 로고    scopus 로고
    • A rigid-band shift through the ARPES-deduced DOS reported in Ref. would suffer from this inconsistency. If the results of Ref. are used to deduce the DOS the contrast with our data is even more striking since that would predict a rise in γ over the relevant energy range.
    • A rigid-band shift through the ARPES-deduced DOS reported in Ref. would suffer from this inconsistency. If the results of Ref. are used to deduce the DOS the contrast with our data is even more striking since that would predict a rise in γ over the relevant energy range.
  • 40
    • 4243236296 scopus 로고
    • 10.1103/PhysRevLett.51.308
    • V. T. Rajan, Phys. Rev. Lett. 51, 308 (1983). 10.1103/PhysRevLett.51.308
    • (1983) Phys. Rev. Lett. , vol.51 , pp. 308
    • Rajan, V.T.1


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.