High-resolution angle-resolved photoemission study of BaCo1-xNixS2

T. Sato; H. Kumigashira; D. Ionel; T. Ito; T. Takahashi; I. Hase; H. Ding; J. C. Campuzano; S. Shamoto

doi:10.1142/S0218625X02003627

High-resolution angle-resolved photoemission study of BaCo_1-xNi_xS₂

T. Sato, H. Kumigashira, D. Ionel, T. Ito, T. Takahashi, I. Hase, H. Ding, J. C. Campuzano, S. Shamoto

Department of Physics

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

Abstract

We have performed angle-resolved photoemission spectroscopy on a layered Mott system BaCo_1-x Ni_xS₂ across the phase transition from the antiferromagnetic insulator (x = 0.18) to anomalous metal (x = 0.28). In the anomalous metallic phase, we found a large Fermi surface centered at the M(A) point with a dominant Co (Ni) 3d_3z2^-r2 character. Hubbard bands in the insulating phase have a remnant of Fermi surface in the metallic phase and gradually evolve into metallic dispersive bands upon carrier doping. We conclude that the electronic structure of BaCo_1-xNi_xS₂ is basically different from that of the high-T_c cuprates although the transport and magnetic properties share some common features between the two layered compounds.

Original language	English
Pages (from-to)	1127-1132
Number of pages	6
Journal	Surface Review and Letters
Volume	9
Issue number	2
DOIs	https://doi.org/10.1142/S0218625X02003627
Publication status	Published - 2002 Apr

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

Access to Document

10.1142/S0218625X02003627

Cite this

@article{466ba4469b294e37b0099904853c4bcc,

title = "High-resolution angle-resolved photoemission study of BaCo1-xNixS2",

abstract = "We have performed angle-resolved photoemission spectroscopy on a layered Mott system BaCo1-x NixS2 across the phase transition from the antiferromagnetic insulator (x = 0.18) to anomalous metal (x = 0.28). In the anomalous metallic phase, we found a large Fermi surface centered at the M(A) point with a dominant Co (Ni) 3d3z2-r2 character. Hubbard bands in the insulating phase have a remnant of Fermi surface in the metallic phase and gradually evolve into metallic dispersive bands upon carrier doping. We conclude that the electronic structure of BaCo1-xNixS2 is basically different from that of the high-Tc cuprates although the transport and magnetic properties share some common features between the two layered compounds.",

author = "T. Sato and H. Kumigashira and D. Ionel and T. Ito and T. Takahashi and I. Hase and H. Ding and Campuzano, {J. C.} and S. Shamoto",

note = "Funding Information: This work was supported by grants from the CREST (Core Research for Evolutional Science and Technology Corporation) of JST, the Japan Society for Promotion of Science (JSPS), the Ministry of Education, Science and Culture of Japan and the Sasagawa Scienti c Research Grant from the Japan Science Society. T. S., H. K. and T. I. thank the JSPS for nancial support.",

year = "2002",

month = apr,

doi = "10.1142/S0218625X02003627",

language = "English",

volume = "9",

pages = "1127--1132",

journal = "Surface Review and Letters",

issn = "0218-625X",

publisher = "World Scientific Publishing Co. Pte Ltd",

number = "2",

}

TY - JOUR

T1 - High-resolution angle-resolved photoemission study of BaCo1-xNixS2

AU - Sato, T.

AU - Kumigashira, H.

AU - Ionel, D.

AU - Ito, T.

AU - Takahashi, T.

AU - Hase, I.

AU - Ding, H.

AU - Campuzano, J. C.

AU - Shamoto, S.

N1 - Funding Information: This work was supported by grants from the CREST (Core Research for Evolutional Science and Technology Corporation) of JST, the Japan Society for Promotion of Science (JSPS), the Ministry of Education, Science and Culture of Japan and the Sasagawa Scienti c Research Grant from the Japan Science Society. T. S., H. K. and T. I. thank the JSPS for nancial support.

PY - 2002/4

Y1 - 2002/4

N2 - We have performed angle-resolved photoemission spectroscopy on a layered Mott system BaCo1-x NixS2 across the phase transition from the antiferromagnetic insulator (x = 0.18) to anomalous metal (x = 0.28). In the anomalous metallic phase, we found a large Fermi surface centered at the M(A) point with a dominant Co (Ni) 3d3z2-r2 character. Hubbard bands in the insulating phase have a remnant of Fermi surface in the metallic phase and gradually evolve into metallic dispersive bands upon carrier doping. We conclude that the electronic structure of BaCo1-xNixS2 is basically different from that of the high-Tc cuprates although the transport and magnetic properties share some common features between the two layered compounds.

AB - We have performed angle-resolved photoemission spectroscopy on a layered Mott system BaCo1-x NixS2 across the phase transition from the antiferromagnetic insulator (x = 0.18) to anomalous metal (x = 0.28). In the anomalous metallic phase, we found a large Fermi surface centered at the M(A) point with a dominant Co (Ni) 3d3z2-r2 character. Hubbard bands in the insulating phase have a remnant of Fermi surface in the metallic phase and gradually evolve into metallic dispersive bands upon carrier doping. We conclude that the electronic structure of BaCo1-xNixS2 is basically different from that of the high-Tc cuprates although the transport and magnetic properties share some common features between the two layered compounds.

UR - http://www.scopus.com/inward/record.url?scp=0036553494&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0036553494&partnerID=8YFLogxK

U2 - 10.1142/S0218625X02003627

DO - 10.1142/S0218625X02003627

M3 - Article

AN - SCOPUS:0036553494

SN - 0218-625X

VL - 9

SP - 1127

EP - 1132

JO - Surface Review and Letters

JF - Surface Review and Letters

IS - 2

ER -

High-resolution angle-resolved photoemission study of BaCo_1-xNi_xS₂

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this