Rigid-band shift of the Fermi level in the strongly correlated metal:: Sr2-yLayRuO4 -: art. no. 060508

被引：33

作者：

Kikugawa, N ^{[1
]}

Mackenzie, AP

Bergemann, C

Borzi, RA

Grigera, SA

Maeno, Y

机构：

[1] Univ St Andrews, Sch Phys & Astron, St Andrews KY16 9SS, Fife, Scotland

[2] Kyoto Univ, Venture Business Lab, Kyoto 6068501, Japan

[3] Kyoto Univ, Dept Phys, Kyoto 6068502, Japan

[4] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England

[5] Kyoto Univ, Int Innovat Ctr, Kyoto 6068501, Japan

来源：

PHYSICAL REVIEW B | 2004年 / 70卷 / 06期

关键词：

D O I：

10.1103/PhysRevB.70.060508

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report a systematic study of electron doping of Sr2RuO4 by nonisovalent substitution of La3+ for Sr2+. Using a combination of de Haas-van Alphen oscillations, specific heat, and resistivity measurements, we show that electron doping leads to a rigid-band shift of the Fermi level corresponding to one doped electron per La ion, with constant many-body quasiparticle mass enhancement over the band mass. The susceptibility spectrum is substantially altered and enhanced by the doping but this has surprisingly little effect on the strength of the unconventional superconducting pairing.

引用

页码：060508 / 1

页数：4

共 32 条

[1] Quasi-two-dimensional Fermi liquid properties of the unconventional superconductor Sr2RuO4 [J].

Bergemann, C ;

Mackenzie, AP ;

Julian, SR ;

Forsythe, D ;

Ohmichi, E .

ADVANCES IN PHYSICS, 2003, 52 (07) :639-725

[2] Detailed topography of the Fermi surface of Sr2RuO4 [J].

Bergemann, C ;

Julian, SR ;

Mackenzie, AP ;

NishiZaki, S ;

Maeno, Y .

PHYSICAL REVIEW LETTERS, 2000, 84 (12) :2662-2665

[3] Inelastic neutron scattering study of magnetic excitations in Sr2RuO4 -: art. no. 064522 [J].

Braden, M ;

Sidis, Y ;

Bourges, P ;

Pfeuty, P ;

Kulda, J ;

Mao, Z ;

Maeno, Y .

PHYSICAL REVIEW B, 2002, 66 (06) :645221-6452211

[4] Incommensurate magnetic ordering in Sr2Ru1-xTixO4 -: art. no. 197002 [J].

Braden, M ;

Friedt, O ;

Sidis, Y ;

Bourges, P ;

Minakata, M ;

Maeno, Y .

PHYSICAL REVIEW LETTERS, 2002, 88 (19) :4

[5] Mixed-valence manganites [J].

Coey, JMD ;

Viret, M ;

von Molnár, S .

ADVANCES IN PHYSICS, 1999, 48 (02) :167-293

[6] Angle-resolved photoemission studies of the cuprate superconductors [J].

Damascelli, A ;

Hussain, Z ;

Shen, ZX .

REVIEWS OF MODERN PHYSICS, 2003, 75 (02) :473-541

[7] Fermi surface, surface states, and surface reconstruction in Sr2RuO4 [J].

Damascelli, A ;

Lu, DH ;

Shen, KM ;

Armitage, NP ;

Ronning, F ;

Feng, DL ;

Kim, C ;

Shen, ZX ;

Kimura, T ;

Tokura, Y ;

Mao, ZQ ;

Maeno, Y .

PHYSICAL REVIEW LETTERS, 2000, 85 (24) :5194-5197

[8] Development of the high-field heavy-fermion ground state in CexLa1-xB6 intermetallics [J].

Goodrich, RG ;

Harrison, N ;

Teklu, A ;

Young, D ;

Fisk, Z .

PHYSICAL REVIEW LETTERS, 1999, 82 (18) :3669-3672

[9] Interaction-induced collapse of a section of the Fermi sea in the zigzag Hubbard ladder [J].

Hamacher, K ;

Gros, C ;

Wenzel, W .

PHYSICAL REVIEW LETTERS, 2002, 88 (21) :4-217203

[10] Evolution of normal-state magnetic fluctuations by Ca and Ti substitutions in Sr2RuO4:: 87Sr-NMR study -: art. no. 214412 [J].

Ishida, K ;

Minami, Y ;

Kitaoka, Y ;

Nakatsuji, S ;

Kikugawa, N ;

Maeno, Y .

PHYSICAL REVIEW B, 2003, 67 (21)

← 1 2 3 4 →