Journal ArticleDOI
Synthesis and single-crystal growth of Ca2-xSrxRuO4
Satoru Nakatsuji,Yoshiteru Maeno +1 more
Reads0
Chats0
TLDR
In this article, the structural, transport, and magnetic properties of both polycrystalline and single-crystal samples are fully in agreement for the quasi-two-dimensional Mott transition system Ca{sub 2-x}Sr{sub x}RuO{sub 4}.About:
This article is published in Journal of Solid State Chemistry.The article was published on 2001-01-01. It has received 43 citations till now. The article focuses on the topics: Mott transition & Crystallite.read more
Citations
More filters
Journal ArticleDOI
Higgs mode and its decay in a two-dimensional antiferromagnet
Anil Jain,Anil Jain,M. Krautloher,Juan Porras,Gihun Ryu,D. P. Chen,Douglas L. Abernathy,Jitae Park,Alexandre Ivanov,Jiří Chaloupka,Giniyat Khaliullin,Bernhard Keimer,Bumjoon Kim,Bumjoon Kim +13 more
TL;DR: In this paper, a spin-polarized inelastic neutron scattering study of two-dimensional antiferromagnet Ca2RuO4 has been conducted, which reveals evidence for a condensed-matter analogue of the Higgs mode, and its subsequent decay into transverse Goldstone modes.
Journal ArticleDOI
Hallmarks of Hunds coupling in the Mott insulator Ca2RuO4.
D. Sutter,C. G. Fatuzzo,Simon Moser,Minjae Kim,Minjae Kim,Rosalba Fittipaldi,Antonio Vecchione,Veronica Granata,Yasmine Sassa,F. Cossalter,G. Gatti,Marco Grioni,Henrik M. Rønnow,Nicholas C. Plumb,Christian Matt,Ming Shi,Moritz Hoesch,Timur K. Kim,Tay-Rong Chang,Tay-Rong Chang,Horng-Tay Jeng,Horng-Tay Jeng,Chris Jozwiak,Aaron Bostwick,Eli Rotenberg,Antoine Georges,Antoine Georges,Antoine Georges,Titus Neupert,Johan Juul Chang +29 more
TL;DR: The crystal field stabilization of the dxy orbital due to c-axis contraction is shown to be essential to explain the insulating phase and underscores the importance of multi-band physics, Coulomb interaction and Hund's coupling that together generate the Mott insulating state of Ca2RuO4.
Journal ArticleDOI
New magnetic phase diagram of (Sr,Ca)2RuO4
Jeremy P. Carlo,Tatsuo Goko,Tatsuo Goko,I. M. Gat-Malureanu,I. M. Gat-Malureanu,P. L. Russo,Andrei T. Savici,Adam A. Aczel,Gregory MacDougall,J. A. Rodriguez,Travis Williams,Graeme Luke,Christopher R. Wiebe,Christopher R. Wiebe,Yoshiyuki Yoshida,Satoru Nakatsuji,Satoru Nakatsuji,Y. Maeno,T. Taniguchi,Yasutomo J. Uemura +19 more
TL;DR: Using muon spin relaxation and magnetic susceptibility measurements, it is demonstrated here that (Sr,Ca)(2)RuO(4) has a ground state with static magnetic order over nearly the entire range of (Ca, Sr) substitution, with spin-glass behaviour in Sr(1.5)Ca(0.5).
Journal ArticleDOI
Magnetotransport of dirty-limit van Hove singularity quasiparticles
Y. Xu,František Herman,František Herman,Veronica Granata,D. Destraz,L. Das,Jakub Vonka,Simon Gerber,Jonathan Spring,Marta Gibert,Andreas Schilling,Xiaofu Zhang,Shiyan Li,R. Fittipaldi,Mark H. Fischer,Antonio Vecchione,Johan Chang +16 more
TL;DR: In this paper, a magnetotransport study of the dirty metamagnetic system calcium-doped strontium ruthenate is presented, where the authors investigate the unusual Fermi liquid behavior of calcium-drained strrontium rutsate and find an unusual variation of the Kadowaki-Woods ratio which may originate from disorder.
Journal ArticleDOI
Observation of spin-orbit excitations and Hund's multiplets in Ca 2 RuO 4
Hlynur Gretarsson,H. Suzuki,Hoon Kim,Hoon Kim,Kentaro Ueda,M. Krautloher,Bumjoon Kim,Bumjoon Kim,Hasan Yavaş,Giniyat Khaliullin,Bernhard Keimer +10 more
TL;DR: In this article, the authors used resonant inelastic x-ray scattering (RIXS) spectra to quantify the electronic structure of Ru, a layered compound that exhibits a correlation-driven metal-insulator transition and unconventional antiferromagnetism.
References
More filters
Journal ArticleDOI
Superconductivity in a layered perovskite without copper
Yoshiteru Maeno,Hiroaki Hashimoto,K. Yoshida,S. Nishizaki,Toshizo Fujita,Johannes Georg Bednorz,Frank Lichtenberg +6 more
TL;DR: In this article, it was shown that the presence of copper is not a prerequisite for the existence of superconductivity in a layered perovskite, and that the low value of the superconducting transition temperature (Tc = 0.93 K) points towards a special role for copper in the high-temperature superconductors.
Journal ArticleDOI
Spin-triplet superconductivity in Sr2RuO4 identified by 17O knight shift
Kenji Ishida,Hidekazu Mukuda,Yoshio Kitaoka,Kunisuke Asayama,Zhiqiang Mao,Y. Mori,Yoshiteru Maeno +6 more
TL;DR: In this paper, the authors used 17O NMR to determine the spin susceptibility of the layered oxide superconductor Sr2RuO4 and showed no change in spin susceptibility on passing through the superconducting transition temperature.
Journal ArticleDOI
Quasi-two-dimensional mott transition system Ca2-xSrxRuO4
Satoru Nakatsuji,Yoshiteru Maeno +1 more
TL;DR: The phase diagram of Ca2-xSrxRuO4 is revealed: the quasi-two-dimensional Mott transition system that connects the Mott insulator Ca2 RuO4 with the spin-triplet superconductor Sr2RuO 4.
Journal ArticleDOI
Crystal and magnetic structure of Ca 2 RuO 4 : Magnetoelastic coupling and the metal-insulator transition
TL;DR: The crystal and magnetic structure of CRO was studied by powder neutron diffraction in this paper, showing that the crystal structures are closely related, in spite of strong differences in the lattice constants.
Journal ArticleDOI
Ca2RuO4: New Mott Insulators of Layered Ruthenate
TL;DR: In this paper, the authors showed that both phases of Ca 2 RuO 4 are Mott-Hubbard-type gap and showed that the decrease of the 4 d band width in comparison with that of Sr 2RuO 4, caused by distortions in the RuO 2 planes, leads to a MottHubbard type gap.