Temperature dependence of the electrical resistivity in insulating granular films under high pressure
スポンサーリンク
概要
- 論文の詳細を見る
We have studied electrical resistivity of Co_<43>Al_<24>O_<33> insulating granular films under high pressure. This material consists of nanometer-sized Co granules embedded in an Al-oxide matrix, in which electron tunneling between Co granules and electrical charging effect (Coulomb blockade) of Co granules plays an important role for the electrical conduction. The tunneling conductivity is enhanced by applying pressure. and the enhancement is more significant at low temperatures. The characteristic temperature dependence represented by log ρ∝ T^<-1/2> is observed at high pressure up to 3.1GPa. The proportional coefficient of log ρ∝ T^<-1/2> relationship shows a clear tendency to decrease with increasing pressure. This behavior can be mainly interpreted by the suppression of charging effect. assuming that the Al-oxide matrix is more compressible than Co granules.
- 社団法人日本磁気学会の論文
- 2002-05-01
著者
-
Oomi Gendo
Department of Physics, Kyushu University
-
MITANI Seiji
Institute for Materials Research (IMR), Tohoku University
-
TAKANASHI Koki
Institute for Materials Research (IMR), Tohoku University
-
Takanashi Koki
Institute For Materials Research (imr) Tohoku University
-
Mitani Seiji
Institute For Materials Research (imr) Tohoku University
-
Mitani Seiji
Institute For Materials Research Tohoku University
-
HONDA Fuminori
Department of Physics, Kyushu University
-
KAJI Shiori
Department of Physics, Kyushu University
-
Honda Fuminori
Department Of Electronic Structures Faculty Of Mathematics And Physics Charles Univ.
-
Mitani Seiji
Institute For Materials Research Tohoku University:crest Japan Science And Technology Corporation
-
Mitani Seiji
Institute For Materials Research Tohoku Univ.
-
Takanashi Koki
Institute For Materials Research Tohoku Univ.
-
Oomi Gendo
Department Of Physics Kyushu Univ.
-
Oomi Gendo
Department Of Mechanical Engineering And Materials Science Faculty Of Engineering Kumamoto Universit
-
Kaji Shiori
Department Of Physics Kyushu Univ.
-
Mitani Seiji
National Institute For Materials Science (nims)
-
Takanashi Koki
Institute for Material Research, Tohoku University
関連論文
- Partial Gap of SDW in Ce (Ru_Rh_x)_2Si_2
- Bulk Modulus Anomalies of Fe-Ni and Fe-Pt Invar Alloys
- Growth and Characterization of Ultrathin Fe Films on Molecule-Adsorbed MgO Surfaces
- Study of Strain and Giant Magnetoresistance of Co/Cu Magnetic Multilayers(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- Effect of Pressure on the Giant Magnetoresistance in Co/Cu Magnetic Multilayers(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- Thermoelectric Power and Hall Effect in Co-Al-O Granular Films
- Magnetooptical Spectra in PtMnSb between 1.2 and 5.9 eV
- Magnetooptical Kerr Spectrometer for 1.2-5.9 eV Region and its Application to FePt/Pt Multilayers
- Magnetooptical Characterization of Cl_b-Type Heusler Compounds, Pt_Mn_Sb_(X=-0.1 and 0, 0.1)
- Pressure Effect on Antiferromagnetic Ordering in UIn_3
- 高圧下におけるHoNi_2B_2Cの磁性と超伝導
- Anisotropic Lattice Compression and Possible Valence Change in Kondo Compound CeAu_2Si_2
- Effects of Room Temperature Heavy-Ion Irradiation on Magnetic and Electrical Properties of a Single Crystalline Iron Thin Film
- Spin Density Wave in Epitaxial Cr(001)/Sn and Cr(001)/Au Multilayers with Nonmagnetic Spacer Layers : Condensed Mater: Structure, etc.
- Thermal Expansion and Magnetostriction in CeRh_2Si_2 under High Pressure
- Magnetic Phase Transitions and Magnetoelastic Phenomena in UNiGa under Pressure
- Magnetic and magnetotransport properties in nanogranular Co/C60-Co film with high magnetoresistance
- Metamagnetic Transition of RSb_2 at High Pressure
- Instability of Non-Fermi Liquid Behavior of Ce and U Compounds under High Pressure
- NMR Studies of VO_2 and V_W_XO_2
- PREFACE
- Perpendicularly Magnetized L1_0-FePt / MgO Epitaxially grown on GaAs for Electrical Spin Injection
- Preferential Growth of α'-FeN Films under a High Magnetic Field
- Temperature dependence of the electrical resistivity in insulating granular films under high pressure
- Electrical Transport and Optical Properties of Hydrogen-Deficient YH_2 Films
- Effect of Pressure on the Giant Magnetoresistance of Fe/Cr Magnetic Superlattices
- Anisotropic Thermal Expansion Coefficients of CeCu_2 Single Crystal under High Pressure
- Thermal Expansion of Single Crystalline Kondo Compound CeCu_2
- Effect of Pressure on the Thermal Expansion of Mixed-Valence Compound CeNi
- Thermal Expansion Coefficients of CeCu_2 and YCu_2 Single Crystals
- Pressure Collapse of Kondo Gap in Kondo Compound CeRhSb
- Pressure-Induced Positive Magnetoresistance in the Heavy Fermion Compound CeInCu_2
- Large Interface Spin-Asymmetry and Magnetoresistance in Fully Epitaxial Co_2MnSi/Ag/Co_2MnSi Current-Perpendicular-to-Plane Magnetoresistive Devices
- Magnetization and Magnetoresistance of Fe/Gd Ferrimagnetic Multilayer Films
- Interface Magnetism in Fe/Mn Artificial Metallic Superlattice Investigated by ^Mn NMR
- Microscopic Magnetic Properties of Fe-V Metallic Superlattice Investigated from ^V NMR
- ^Co NMR Observation for Compound Formation at Interface of Co-Sb Multilayered Film
- Observation of ^V NMR in Multilayered Fe-V Film with Artificial Superstructure
- Magnetic Properties of L10 Ordered FePt Films Prepared on a Fe--Si--B--Nb--Cu Soft Magnetic Underlayer
- Anomalous Pressure Dependence of the Giant Magnetoresistance for Co/Cu Magnetic Multilayers
- Ferromagnetic Tunneling Effect in NiFe/GdO_x/Co and NiFe/AlO_x/Co Junctions made by Electron Beam Deposition
- Indirect Exchange Coupling between Co and Gd across Nonmagnetic Interlayers in Co/X/Gd/X Multilayers (X=Ag, Au and W)
- Antiferromagnetic Exchange Coupling and Magnetoresistance of Fe/Cr Multilayers : Influence of Third Elements in Cr Layers
- Relationship between Magnetoresistance and Lattice Uncertainty at the Interface in Sputtered Fe/Cr Multilayer Films
- Microstructure and Magnetic Properties for Highly Coercive FePt Sputtered Films
- Pressure-Induced Crossover in Heavy Fermion Compounds
- NMR Study of Bismuth-Substituted Yttrium Iron Garnets
- Giant Peltier Effect in a Submicron-Sized Cu-Ni/Au Junction with Nanometer-Scale Phase Separation
- Magneto-Optical Kerr Rotation of the PtMnSb Compound in a High Magnetic Field
- Annealing Effect of Magneto-Optical Kerr Rotation for PtMnSb Compound : Magnetism, Magnetic Materials and Devieces
- Effect of Pressure on the Electrical Resistivity of Fe_(Ni_Mn_)_ Alloy
- Effect of Pressure on the Magnetoresistance of the Heavy Ferminon Compound CeAl_3
- An Alloying Effect of Lanthanum on the T^2-Dependence in Electrical Resistivity of Ce under High Pressure
- Observation of the Persistent Photoconductivity Due to the DX Center in GaAs under Hydrostatic Pressure
- Preparation and Magneto-Optical Kerr Effect of PtMnSb/NiMnSb Multilayer Films
- Magnetoresistance in Heavy Fermion Substance CeCu_6 Under Pressure
- Effect of Pressure on the Giant Magnetoresistance for Co/Cu with Different Cu-Layer Thickness
- Can We Measure a Momentum Change of Conduction Electrons at High Pressure?
- Dielectric Properties of Ferroelectric Hexagonal BaTiO_3
- Pressure Effect on the Crystal Structure and the Superconducting Transition Temperature of NbSe_3
- Anisotropic Compressibilities of the Linear-Chain Compound TaSe_3
- Thermal Expansion Coefficient of a New Heavy Fermion Substance,CeInCu_2
- Microstructure Affecting Magnetoresistance of a Cu75--Fe5--Ni20 Alloy
- Preparation of Highly-Oriented Co2MnSi Films on a Non-Single-Crystalline Substrate Using a Titanium--Nitride Buffer Layer
- Search for the Quantum Critical Point in Cr_V_x Alloys
- AC magnetic susceptibility studies of single crystalline CeNiGe2 under high pressure
- Electrical Resistivity of Amorphous Ce-Ru Alloy under High Pressure and High Magnetic Field
- Electrical Resistivity and Thermal Expansion of Rare Earth Compounds, R_3Co
- Pressure Effect on T^2-Dependence in Electrical Resistivity of α-Ce and α-Ce_La_Alloy
- Time Resolved Inductive Detection of Domain Wall Dynamics in Magnetic Nanowires
- Thermal Stability and Interdiffusion in Artificial L1_0-type Ordered AuFe Alloy Fabricated by Alternate Monatomic Deposition
- Coherent Layered Structures in Fe/Au Monatomic Multilayers with Addition of Fractional Atomic Layers
- Pressure Effect on the Spontaneous Volume Magnetostriction of Fe-Ni and Fe-Pt Invar Alloys
- Effect of Oxygen Deficiency on the Compressibility of High-T_c Superconductor YBa_2Cu_3O_(7-δ)
- Pressure Effect on the T^2-Dependence in Electrical Resistivity of Exchange-Enhanced a-Ce
- Impurity Effect of Lanthanum on the γ-α Transition Temperature and Pressure of Ce Metal
- High Pressure X-Ray Study of Anomalous Bulk Modulus of an Fe_Ni_ Invar Alloy
- Volume Dependent Gruneisen Parameter in the Heavy Fermion Compound CeInCu_2
- MgO界面によるCo_2FeAlホイスラー合金薄膜の垂直磁化
- Anomalies in the Thermal Expansion and Electrical Resistivity of Fe_Ni_ Alloy under High Pressure
- Relative Vortex State Control in a Co/Cu/Co Pseudo-Spin-Valve Ring (Special Issue : Solid State Devices and Materials (2))
- Simple Experimental Procedure under Quasi-Hydrostatic Pressure up to 15 GPa at Low Temperature
- Anisotropic Compression and Phase Transition under High Pressure in the Kondo Material CeCu_6
- Effect of Pressure on Electrical Resistivity and Lattice Spacing of Dense Kondo Material CeCu_6
- Anomalous Nernst Effect in an L10-Ordered Epitaxial FePt Thin Film
- Magnetic Anisotropy and Chemical Order of Artificially Synthesized L10-Ordered FeNi Films on Au--Cu--Ni Buffer Layers
- Effect of Pressure on the Spin-Dependence of Electrical Resistivity in Fe/Cr Magnetic Multilayers
- Evaluation of Spin Hall Angle and Spin Diffusion Length by Using Spin Current-Induced Ferromagnetic Resonance
- Anomalous Nernst Effect in an L1_0-Ordered Epitaxial FePt Thin Film
- MgO Layer Thickness Dependence of Structure and Magnetic Properties of L1_{0}-FePt/MgO/GaAs Structures
- Electrical Transport and Optical Properties of Hydrogen-Deficient YH2 Films
- Pressure Collapse of Kondo Gap in Kondo Compound CeRhSb
- High Remanent Magnetization of $L1_{0}$-Ordered FePt Thin Film on MgO/(001) GaAs
- Anomalous Nernst Effect in L1
- Erratum: ``Anomalous Nernst Effect in an L1
- Magneto-Optical Properties and Size Effect of Ferromagnetic Metal Nanoparticles
- Magneto-Optical Properties and Size Effect of Ferromagnetic Metal Nanoparticles
- Anomalous Nernst Effect in L1_0-FePt/MnGa Thermopiles for New Thermoelectric Applications