Quadrupole Effects of Layered Iron Pnictide Superconductor Ba(Fe0.9Co0.1)2As2

スポンサーリンク

概要

• 論文の詳細を見る

• Elastic constant measurements on iron pnictide Ba(Fe0.9Co0.1)2As2 with an optimal superconducting transition temperature of T_{\text{SC}} = 23 K have been performed by the ultrasonic pulse echo method. The shear elastic constant of C_{66} associated with elastic strain \varepsilon_{xy} reveals considerable softening of 21% below 300 K down to T_{\text{SC}} and becomes increasing in the superconducting phase below T_{\text{SC}}, while other shear elastic constants of (C_{11}-C_{12})/2 and C_{44} show no sign of softening below 80 K down to 4.2 K. The electric quadrupole O_{v'} existing in the degenerate d_{y'z} and d_{zx'} bands participates in the superconductivity of the present iron pnictide system.

• 2011-07-15

著者

• Goto Terutaka

  Graduate School Of Science And Technology Niigata University

• Nemoto Yuichi

  Graduate School Of Science And Technology Niigata University

• Akatsu Mitsuhiro

  Graduate School Of Science And Technology Niigata University

• Araki Koji

  Graduate School of Science and Technology, Niigata University, Niigata 950-2181, Japan

• MITSUMOTO Keisuke

  Graduate School of Science and Technology, Niigata University, Niigata 950-2181, Japan

• Kurihara Ryosuke

  Graduate School of Science and Technology, Niigata University, Niigata 950-2181, Japan

• Tatematsu Shunichi

  Department of Physics, Nagoya University, Nagoya 464-8602, Japan

• Sato Masatoshi

  JST, Transformative Research-Project on Iron Pnictides (TRIP), Chiyoda, Tokyo 102-0075, Japan

• Tatematsu Shunichi

  Department of Physics, Division of Material Science, Nagoya University, Nagoya 464-8602, Japan

関連論文

• Quadrupole Ordering in Clathrate Compound Ce_3Pd_Si_6(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
• Anisotropic Cooperative Jahn-Teller Effect and Metamagnetism in PrCu_2
• Ultrasonic Investigation of Off-Center Rattling in Filled Skutterudite Compound NdOs_4Sb_(Condensed matter: structure and mechanical and thermal properties)
• Magnetic Phase Diagrams of Kondo Compounds Ce_La_B_6 and Ce_La_B_6
• Low Temperature Properties of the Magnetic Semiconductor TmTe
• Low-Temperature Properties of the Dense Kondo System Ge_La_B_6
• Quadrupolar Kondo Effect in Non-Kramers Doublet System PrInAg_2(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
• Observation of Low-Temperature Elastic Softening due to Vacancy in Crystalline Silicon(Condensed Matter: Structure, Mechanical and Thermal Properties)
• Successive Magnetic Orderings of Rectangular Components Caused by Conservation of Paraquadrupolar State in Magnetically Ordered Phase in TbCoGa_5
• Geometrical Quadrupolar Frustration in DyB_4(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
• Dilatometric Measurements and Multipole Ordering in DyB_2C_2 and HoB_2C_2(Condensed Matter : Structure, Mechanical and Thermal Properties)
• Elastic Constant in Magnetic Fields and Singlet-Triplet State of Heavy Fermion Superconductor PrOs_4Sb_(Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties)
• Elastic Properties and Magnetic Phase Diagrams of Dense Kondo Compound Ce_La_B_6(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
• Trigonal Lattice Distortion and Ferro-Quadrupole Ordering in Phase IV of Ce_xLa_B_6 (x = 0.75 and 0.70)
• Trigonal Lattice Distortion and Ferro-Quadrupole Ordering in Phase IV of Ce_xLa_B_6 (x=0.75 and 0.70)
• Magnetic Phase Diagrams of Ce_xLa_B_6
• Lattice Instability and Elastic Response in the Heavy Electron System URu_2Si_2
• Ultrasonic Study for the Charge Ordering of Yb_4As_3
• Quadrupole Effects of Vacancy Orbital in Boron-Doped Silicon
• Antiferro-Quadrupolar Ordering at the Lowest Temperature and Anisotropic Magnetic Field--Temperature Phase Diagram in the Cage Compound PrIr2Zn20
• Quadrupole Effects of Layered Iron Pnictide Superconductor Ba(Fe0.9Co0.1)2As2
• Magnetic and Thermal Properties of Cubic Single-Crystal PrCu4Ag
• Neutron Scattering Study of Magnetic Excitation Spectra of Ba(Fe0.9Co0.1)2As2
• Crystal Field Level Diagrams at the Pr Sites (8c) and (4a) in the Clathrate Compound Pr3Pd20Si6
• Magnetic-Field-Independent Ultrasonic Dispersions in the Magnetically Robust Heavy Fermion System SmOs4Sb12
• Cooperative Effect of Coulomb Interaction and Electron–Phonon Coupling on the Heavy Fermion State in the Two-Orbital Periodic Anderson Model
• Dissipation in Non-Kramers Doublet of PrMg3
• Quadrupole Ordering and Rattling Motion of Clathrate Compound Pr3Pd20Ge6
• Low Temperature Magnetic Properties of Ce3Pd20Si6
• Coexistence of Ising and XY Spin Systems on a Single Tb Atom in TbCoGa
• Low-Temperature Softening Due to Vacancy Orbital with \Gamma_{8} Quartet Ground State in Boron-Doped Floating Zone Silicon
• Strong Quadrupole-Strain Interaction of Vacancy Orbital in Boron-Doped Czochralski Silicon
• Elastic constant in magnetic fields and singlet-triplet state of heavy fermion superconductor PrOS4Sb12
• Quadrupolar Kondo Effect in Non-Kramers Doublet System PrInAg_2(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)

もっと見る 閉じる

スポンサーリンク