Novel metallic ferromagnet Sr2CoO4

J. Matsuno; Y. Okimoto; Z. Fang; X. Z. Yu; Y. Matsui; N. Nagaosa; H. Kumigashira; M. Oshima; M. Kawasaki; Y. Tokura

doi:10.1016/j.tsf.2004.10.055

Novel metallic ferromagnet Sr₂CoO₄

J. Matsuno, Y. Okimoto, Z. Fang, X. Z. Yu, Y. Matsui, N. Nagaosa, H. Kumigashira, M. Oshima, M. Kawasaki, Y. Tokura

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

We report on synthesis and electronic characterization of single-crystalline film of Sr₂CoO₄ with square-lattice CoO₂ sheets (K₂NiF₄-type structure). In this compound, we have found both ferromagnetic and metallic behaviors with fairly high Curie temperature T_C of ∼250 K, as contrasted by the superconductivity recently found in a triangular-lattice CoO₂-sheet compound. The electronic structure of Sr₂CoO₄ was also investigated in terms of in situ photoemission spectroscopy.

Original language	English
Pages (from-to)	113-116
Number of pages	4
Journal	Thin Solid Films
Volume	486
Issue number	1-2
DOIs	https://doi.org/10.1016/j.tsf.2004.10.055
Publication status	Published - 2005 Aug 22
Externally published	Yes

Keywords

Cobalt perovskites
Ferromagnetic metal
Laser ablation

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Surfaces and Interfaces
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/j.tsf.2004.10.055

Cite this

@article{68d46ae266f04614ba5346bb85240436,

title = "Novel metallic ferromagnet Sr2CoO4",

abstract = "We report on synthesis and electronic characterization of single-crystalline film of Sr2CoO4 with square-lattice CoO2 sheets (K2NiF4-type structure). In this compound, we have found both ferromagnetic and metallic behaviors with fairly high Curie temperature TC of ∼250 K, as contrasted by the superconductivity recently found in a triangular-lattice CoO2-sheet compound. The electronic structure of Sr2CoO4 was also investigated in terms of in situ photoemission spectroscopy.",

keywords = "Cobalt perovskites, Ferromagnetic metal, Laser ablation",

author = "J. Matsuno and Y. Okimoto and Z. Fang and Yu, {X. Z.} and Y. Matsui and N. Nagaosa and H. Kumigashira and M. Oshima and M. Kawasaki and Y. Tokura",

year = "2005",

month = aug,

day = "22",

doi = "10.1016/j.tsf.2004.10.055",

language = "English",

volume = "486",

pages = "113--116",

journal = "Thin Solid Films",

issn = "0040-6090",

publisher = "Elsevier",

number = "1-2",

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TY - JOUR

T1 - Novel metallic ferromagnet Sr2CoO4

AU - Matsuno, J.

AU - Okimoto, Y.

AU - Fang, Z.

AU - Yu, X. Z.

AU - Matsui, Y.

AU - Nagaosa, N.

AU - Kumigashira, H.

AU - Oshima, M.

AU - Kawasaki, M.

AU - Tokura, Y.

PY - 2005/8/22

Y1 - 2005/8/22

N2 - We report on synthesis and electronic characterization of single-crystalline film of Sr2CoO4 with square-lattice CoO2 sheets (K2NiF4-type structure). In this compound, we have found both ferromagnetic and metallic behaviors with fairly high Curie temperature TC of ∼250 K, as contrasted by the superconductivity recently found in a triangular-lattice CoO2-sheet compound. The electronic structure of Sr2CoO4 was also investigated in terms of in situ photoemission spectroscopy.

AB - We report on synthesis and electronic characterization of single-crystalline film of Sr2CoO4 with square-lattice CoO2 sheets (K2NiF4-type structure). In this compound, we have found both ferromagnetic and metallic behaviors with fairly high Curie temperature TC of ∼250 K, as contrasted by the superconductivity recently found in a triangular-lattice CoO2-sheet compound. The electronic structure of Sr2CoO4 was also investigated in terms of in situ photoemission spectroscopy.

KW - Cobalt perovskites

KW - Ferromagnetic metal

KW - Laser ablation

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U2 - 10.1016/j.tsf.2004.10.055

DO - 10.1016/j.tsf.2004.10.055

M3 - Article

AN - SCOPUS:21844467506

VL - 486

SP - 113

EP - 116

JO - Thin Solid Films

JF - Thin Solid Films

SN - 0040-6090

IS - 1-2

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