• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

1996 Fiscal Year Final Research Report Summary

STM studies on the pairing symmetry and pair breaking of high-Tc cuprates

Research Project

Project/Area Number 07640458
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 固体物性Ⅱ(磁性・金属・低温)
Research InstitutionHOKKAIDO UNIVERSITY

Principal Investigator

ODA Migaku  Hokkaido Univ., Graduate School of Science, Associate Professor., 大学院・理学研究科, 助教授 (70204211)

Co-Investigator(Kenkyū-buntansha) MOMONO Naoki  Hokkaido Univ., Graduate School of Science, Instructor., 大学院・理学研究科, 助手 (00261280)
Project Period (FY) 1995 – 1996
Keywordshigh-Tc cuprate / gap symmetry / pair breaking / STM / STS / pairing interaction
Research Abstract

To understand the pairing mechanism of high-Tc cuprates, we have studied the superconducting gap symmetry and pair breaking effects in Bi-based high-Tc cuprate by STM/STS.The following results were obtained :
1) The gap is of d_<x2-y2> symmetry.
2) The gap magnitude, corresponding to the pairing interaction strength, correlates with the development of an antiferromagnetic correlation.
These results support the contention that an antiferromagnetic correlation is an essential factor in the pairing mechanism of high-Tc cuprates.

  • Research Products

    (30 results)

All Other

All Publications (30 results)

  • [Publications] M. Oda: "Atomic-Plane-Selective STM Imaging and STS on the Bi_2 Sr_2 CaCu_2 O_<8+δ> Cleaved Surface" Journal Low-Temperature Physics. 105. 489-494 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M. Oda: "STM images of a superconducting Cu-O plane and the corresponding tunneling spectrum in Bi_2 Sr_2 CaCu_2 O_<8+δ>" Physical Review B. 53. 2253-2256 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M. Oda: "STM and STS studies on the superconducting gap symmetry of Bi_2 Sr_2 CaCu_2 O_<8+δ>" physica C. 263. 241-244 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M. Ido: "STM/STS and electronic specific heat of high-Tc cuprates : Symmetry of the order parameter" physica C. 263. 225-231 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] N. Momono: "Evidence for nodes in the superconducting gap of La_<2-x>SrxCuO_4 : T^2 dependence of electronic specific heat and impurity effects" physica C. 264. 311-318 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M. Oda: "Atomic-Plane-Selective STM Imaging and STS on the Bi_2Sr_2CaCu_2O_<8+δ> Cleaved Surface" Journal Low-Temperature Physics. 105. 489-494 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] N. Momono: "Electronic Specific Heat of La_<2-x> Srx Cu_<1-y> MyO_4(M=Ga,Zn) : Impurity Effects on a d-wave superconductor" Journal Low-Temperature Physics. 105. 521-526 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T. Nakano: "Spin Susceptibility of La_<2-x> Srx CuO_4 : Modification of Localized Character of Cu _3d-electrons at x>0.15" Journal Low-Temperature Physics. 105. 395-400 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M. Ido: "Pressure effect on anomalous suppression of Tc around X=1/8 in La_<2-X> Bax Cu_1O_4 and La_<1.8-X>Nd_<0.2>BaxCuO_4" Journal Low-Temperature Physics. 105. 311-316 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M. Oda: "Atomic images of the Bi-O plane on Bi_2Sr_2CaCu_2O_<8+δ> Cleaved Surface by STM" Chechoslovak Journal of Physics. 46. 1429-1430 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M. Ido: "Pressure effect on superconductivity and structural phase transition in La_<1.8-X>Nd_<a2>BaxCuO_4" Chechoslovak Journal of Physics. 46. 1235-1236 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T. Nakano: "Maghetic Susceptibility of Superonducting La_<2-X>Sr_XCuO_4" Chechoslovak Journal of Physics. 46. 1152-1153 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] N. Momono: "Investigation of Impurity Effects in La_<2-X>Sr_XCu_<1-y>MyO_4(M=Zn, Ga)" Chechoslovak Journal of Physics. 46. 1233-1234 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] C. Manabe: "Atomic Images and Tunneling Spectra on Bi_2Sr_2CaCu_2O_<8+δ> Cleaved Surface by STM" Journal of Physical Society of Japan in press. (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M. Oda: "STM/STS studies for doping effects on the symmetry and magnitude of superconducting gap in Bi_2Sr_2CaCu_2O_<8+δ>" Physica C inpress. (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M.Oda: "Progress in recent STM/STS experiments on high-T_C cuprates" KOTAIBUTURI. 30. 489-498 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M.Oda, C.Manabe and M.Ido: "STM images of a superconducting Cu-O plane and the corresponding tunneling spectrum in Bi_2Sr_2CaCu_2O_<8+delta>" Phys.Rev. B53. 2253-2256 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M.Oda, C.Manabe, T.Abe and M.Ido: "STM and STS studies on the superconducting gap symmetry of Bi_2Sr_2CaCu_2O_<8+delta>" Physica C. 263. 241-244 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M.Ido, M.Oda, N.Momono, C.Manabe and T.Nakano: "STM/STS and electronic specific heat of high-T_C cuprates : Symmetry of the order parameter" Physica C. 263. 225-231 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] N.Momono and M.Ido: "Evidence for nodes in the superconducting gap of La_<2-x>Sr_xCuO_4 : T^2 dependence of electronic specific heat and impurity effects" Physica C. 264. 311-318 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M.Oda, C.Manabe and M.Ido: "Atomic-Plane-Selective STM Imagging and STS on the Bi_2Sr_2CaCu_2O_<8+delta> Cleaved Surface" J.Low-Temperature Physics. 105. 489-494 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] N.Momono, T.Nakano, M.Oda, and M.Ido: "Electronic Spedific Heat of La_<2-x>Sr_xCu_<1-y>M_yO_4 (M=Ga, Zn) : Impurity Effects on a d-wave superconductor" J.Low Temp.Phys.105. 521-526 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Nakano, K.Yamaya, N.Momono, M.Oda and M.Ido: "Spin Susceptibility of La_<2-x>Sr_xCuO_4 : Modification of Localized Character of Cu 3d-electrons at x>0.15" J.Low Temp.Phys.105. 395-400 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M.Ido, T.kudo, N.Yamada, N.Momono, N.Abe, T.Nakano, C.Manabe and M.Oda: "Pressure effect on anomalous suppression of T_C around x=1/8 in La_<2-x>Ba_xCu_1O^4 and La_<1.8-x>Nd_<0.2>Ba_xCuO_4" J.Low Temp.Phys.105. 311-316 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M.Oda, C.Manabe, T.Abe, R.Kubota, Y.Kamada, T.Nakano, N.Momono and M.Ido: "Atomic images of the Bi-O plane on Bi_2Sr_2CaCu_2O_<8+delta> Cleaved Surface by STM" Chechoslovak Journal of Physics. 46. 1429-1430 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M.Ido, Y.Sakamoto, J.Tuda, O.Akahane, N.Momono, T.Nakano, C.Manabe, and M.Oda: "Pressure effect on superconductivity and structural phase transition in La_<1.8-x>Nb_<0.2>Ba_xCuO_4" Chechoslovak Journal of Physics. 46. 1235-1236 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Nakano, T.Nakano, C.Manabe, Y.Miura, M.Oda, and M.Ido: "Magnetic Susceptibility of Superconducting La_<2-x>Sr_xCuO_4" Chechoslovak Journal of Physics. Vol.46. 1152-1153 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] N.Momono, T.Nakano, A.Eida, K.Chiba, Y.Miura, M.Oda, and M.Ido: "Investigation of Impurity Effects in La_<2-x>Sr_xCu_<1-y>M_yO_4 (M=Zn, Ga)" Chechoslovak Journal of Physics. 46. 1233-1234 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] C.Manabe, M.Oda and M.Ido: "Atomic Images and Tunneling Spectra on Bi_2Sr_2CaCu_2O_<8+delta> Cleaved Surface by STM" J.Phys.Soc.Jpn. (in press). (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M.Oda, K.Hoya, R.Kubota, C.Manabe, N.Momono, T.Nakano and M.Ido: "STM/STS studies for doping effects on the symmetry and magnitude of superconducting gap in Bi_2Sr_2CaCu_2O_<8+delta>" Physica C. (in press). (1996)

    • Description
      「研究成果報告書概要(欧文)」より

URL: 

Published: 1999-03-09  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi