Optical Observation of Energy Gap of R_3Au_3Sb_4 (R=La, Ce)
スポンサーリンク
概要
- 論文の詳細を見る
Reflectivity spectra of R_3Au_3Sb_4 (R=La, Ce) polycrystals were measured in the photon energy range from 5 meV to 40 eV at 6, 78 and 297 K. A narrow energy gap was observed for both materials. In La_3Au_3Sb_4, it was seen that the energy gap of about 150 meV is an indirect one. The absorption due to the direct and allowed transition was observed around 0.7 eV. These results are consistent with the calculated band structure. In Ce_3Au_3Sb_4, it was seen that the energy gap of about 70 meV is a direct one. The gap is considered to consist of the occupied 4f state and the unoccupied 5d state.
- 社団法人日本物理学会の論文
- 1993-12-15
著者
-
Shin-ichi Kimura
Uvsor Facility Institute For Molecular Science
-
KASAYA Mitsuo
Department of Physics,Faculty of Science,Tohoku University
-
Kimura S
The Graduate School Of Science An Technology Kobe University
-
KATOH Kenichi
Department of Mathematics and Physics,The National Defense Academy
-
Ikezawa Mikihiko
Research Institute for Scientific Measurements,Tokyo University
-
ARAI Fumitaka
Research Institute for Scientific Measurements,Tohoku University
-
Sato Yasuhiko
Research Institute for Scientific Measurements, Tohoku University
-
Kimura Shin-ichi
The Graduate School of Science and Technology, Kobe University
-
Sato Y
Research Institute For Scientific Measurements Tohoku University
-
Kasaya M
Tohoku Univ. Sendai
-
Kasaya Mitsuo
Department Of Physics Faculty Of Science Tohoku University
-
Kasaya Mitsuo
Physics Department Graduate School Of Science Tohoku University
-
Kasaya Mitsuo
Uvsor Facility Institute For Molecular Science
-
Katoh Kenichi
Department Of Physics Faculty Of Science Tohoku University
-
KONDO Kenjiro
National Laboratory for High Energy Physics
-
Ikezawa M
Tohoku Univ. Sendai
-
Ikezawa Mikihiko
Research Institute For Scientific Measurements Tokyo University
-
Arai Fumitaka
Research Institute For Scientific Measurements Tohoku University
-
Katoh K
National Defense Acad. Kanagawa
-
Katoh Kenichi
Department Of Applied Physics National Defense Academy
-
Kimura Shojiro
Molecular Photoscience Research Center And Department Of Physics:(present Address)kyokugen Osaka Uni
-
Kirita Keizo
Venture Business Laboratory Kobe University:graduate School Of Science And Technology Kobe Universit
-
Sato Yasuhiko
Research Institute For Scientific Measurements Tohoku University
-
Ikezawa Mikihiko
Research Institute For Scientific Measurements Tohoku University
-
Kobayashi Kei-ichiro
Mitsubishi Electric Corporation Materials And Electric Devices Laboratory
-
Kobayashi Koichi
Department Of Basic Sciences Ishinomaki Senshu University
関連論文
- OE-160 Evaluation of Drug Eluting Stent Fracture in RCA Lesion by 64-slice Multislice Computed Tomography(OE27,CT/MRI (Coronary/Vascular) 1 (I),Oral Presentation (English),The 73rd Annual Scientific Meeting of The Japanese Circulation Society)
- Magnetic Excitations in Heavy Electron State of Filled Skutterudite Pr_xLa_Fe_4P_ (x=1.00 and 0.85)(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- Study of Phonon Anomalies of Rare Earth Hexaborides RB_6
- Field-Induced Metallic State in YbB_ under High Magnetic Field
- Higher Harmonic Electron Spin Resonance of Eu^ in SmB_6
- The Unconventional Superconductivity of Skutterudite PrOs_4Sb_ : Time-Reversal Symmetry Breaking and Adjacent Field-Induced Quadrupole Ordering(Frontiers of Novel Superconductivity in Heavy Fermion Compounds)
- ESR Measurements on One-Dimensional Quantum Ferrimagnets A_3Cu_3(PO_4)_4 with A=Sr and Ca in Submillimeter-Wave Region(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- Unusual Electronic State of the Low-Carrier System CeSb under High Pressure Studied by Simultaneous Measurement of Electrical Resistivity and Lattice Parameter(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- Novel Magnetic Structure of the Low Carrier System CeP and CeAs under External Fields
- Pressure Effects on Crystal Electric Field Excitations in Ultra-Low-Carrier Kondo-Lattice Systems CeP and CeAs
- High Resolution 4d-4f Resonance Photoemission Spectroscopy of CePdX (X=As,Sb)
- de Haas-van Alphen Effect in the Antiferromagnetic Compound SmIn_3
- Reflectivity and Electronic Structures of Layered Ionic Crystals,(C_nH_NH_3)_2CdCl_4 : n=1,2,3
- Change of Electronic Structure Induced by Magnetic Transitions in CeBi(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- Optical and Magneto-Optical Studies on Electronic Structure of CeSb in the Magnetically Ordered States
- Temperature-Induced Valence Transition of EuNi2(Si0.25Ge0.75)2 Studied by Eu 4d-4f Resonant Photoemission and Optical Conductivity (Proceedings of the International Conference on Strongly Correlated Electrons with Orbital Degrees of Freedom(ORBITAL2001))
- Resonanat Photoemission Study of Electronic Structure of Rare-Earth Sesquioxides
- Optical Study on Heavy Fermion and Mixed Valence in Yb_4As_3
- Optical and Photoelectrical Studies of Electronic Structure of R_3Au_3Sb_4 (R=La, Ce and Pr)
- Magnetic Polaron of Gd_2S_3 Studied by Infrared Spectroscopy under Magnetic Field
- Optical Study of Electronic Structure and Nonmetal-Metal Transition of Gd_2S_3
- Optical Observation of Energy Gap of R_3Au_3Sb_4 (R=La, Ce)
- Pressure-Induced Release of Magnetic Frustration in a Quasi-Kagome Antiferromagnet YbAgGe(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- Successive Magnetic Transitions in a Frustrated Compound YbAgGe (Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties)
- High-Resolution Photoemission Study of the Kondo Insulator YbB_
- Elastic Properties in AuCu_3-Type Samarium Intermetallic Compounds
- Interband Optical Spectra of Rare-Earth Hexaborides
- Neutron Diffraction Study of Antiferromagnetic Order in the Kondo Compound CePdSn
- Crossover from Magnetic to Nonmagnetic Ground State in the Kondo Alloy System Ce (Ni_Pd_x) Sn
- Spin Gap State of S = 1/2 Heisenberg Antiferromagnet YbAl_3C_3(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- Spin Fluctuation and Crystal Field Excitation of Heavy-Fermion Compound YbAgGe Studied by Inelastic Neutron Scattering(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- structural and Magnetic Properties of Ternary Rare Earth Compounds RPt(Au)Sb and RPd(Ni)Sn : Chapter 6. Magnetic Properties : 6-3. Low Temperature Measurements and magnetic Properties of New Ternary Rare-Earth Compounds
- Magnetic Properties of New Ternary Rare Earth Compounds RPt (Pd) Sb
- EPR and AFMR of Li_2CuO_2 in Submillimeter Wave Region
- Optical Conductivity of Rare-Earth Hexaborides : Chapter 4. Optical Properties : 4-2. Optical Conductivity of f-Electron Compounds
- Exchange Interaction via Crystal-Field Excited States and Its Importance in CsCoCl_3
- Exchange Interaction via Crystal-Field Excited States and Its Importance in CsCoCl_3
- Magnetic Structure of MnB_2
- Electronic Structure in the Magnetically Ordered States of CeSb Studied by Infrared Magneto-Optical Spectroscopy : Condensed Matter: Electronic Properties, etc.
- Magnetic Properties of the Dense Kondo Compound YbNiSn
- Strong Anisotropy of Transport Properties in Metamagnetic CePtAs
- Spectroscopy Studies of Temperature-Induced Valence Transition on EuNi_2(Si_Ge_x)2 around Eu 3d-4f, 4d-4f and Ni 2p-3d Excitation Regions
- Electron Paramagnetic Resonance Study of Gd^ and Eu in the Mixed Valence Compound SmB_6
- Negative g Shifts of Gb^ and Eu^ in SmB_6
- On the Origin of an Energy Gap in Semiconducting Mixed-Valent Rare-Earth Compounds
- Magnetoresistance and de Haas-van Alphen Effect in UB_
- Ultrahigh-Resolution Photoemission Study of Kondo Insulators CeRhAs and CeRhSb
- S=1/2 Degrees of Freedom in Haldane System Y_2BaNiO_5 Observed by Submillimeter Wave ESR
- Resonant Photoemission Studies of Thulium Monochalcogenides around the Tm 4d Threshold
- Electronic Structure of Ce(Pd_Cu_x)_3(0≤x≤0.133) Studied by Photoemission and Bremsstrahlung Isochromat Spectroscopy
- Low Energy Electronic State and Optical Phonon In YbB_6
- Comparison between Optical Conductivity Spectrum and Band Structure in LaB_6
- PE-169 Stent Underexpansion is Not Main Reason of In-Stent Restenosis after Silorimus-Eluting Stents Implantation with RCA Lesion(Coronary revascularization, PCI(09)(IHD),Poster Session(English),The 72nd Annual Scientific Meeting of the Japanese Circulati
- Photoemission and Bremsstrahlung from Uranium Compounds : Chapter 4. Optical Properties : 4-1. Photoemission and inverse Photoemission Studies of Electronic Structures
- Temperature Dependence of Low-Energy Optical Conductivity of Yb_4(As_P_x)_3 (x=0, 0.05, 0.15)
- Photoemission Study of Mixed-Valent Tm-monochalcogenides : Evidence of Electron-Correlation Effect in Different Tm-Core Levels (Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties)
- Photoemission Study of Mixed-Valent Tm-monochalcogenides : Evidence of Electron-Correlation Effect in Different Tm-Core Levels
- Optical Measurements and Band Calculations of FeSi
- Electron-Strain Interaction in Valence Fluctuation Compound SmB_6
- Impact of Disease Progression on Seven-year Outcome after Multivessel Stenting in Diabetic Patients(Coronary Revascularization, PTCA/Stent/DCA/Rotablator/New Device 6 (IHD), The 69th Annual Scientific Meeting of the Japanese Circulation Society)
- Short and Long-Term Follow Up for Single Vessel Diabetic Patients after Stenting(Coronary Revascularization, PTCA/Stent/DCA/Rotablator/New Device 1 (IHD), The 69th Annual Scientific Meeting of the Japanese Circulation Society)
- PJ-036 Usefulness of QRS Template Matching in Radiofrequency Catheter Ablation of Idiopathic Right Ventricular Outflow Tract Tachycardia(Arrhythmia, therapy(23)(A),Poster Session(Japanese),The 72nd Annual Scientific Meeting of the Japanese Circulation Soc
- OE-241 In DES Era, Treatment for LAD Ostial Lesion-Sirolimus-Eluting Stenting Alone Compared with Bare-metal Stenting after Directional Coronary Atherectomy(Coronary revascularization, PCI-03, The 71st Annual Scientific Meeting of the Japanese Circulation
- Submillimeter Wave ESR Measurements of CsMnBr_3
- Effects of Diagonal Interchain Exchange Interaction on the ESR Modes of ABX_3-Type Triangular Antiferromagnets
- ESR Measurements of R_2Cu_2O_5 (R=Y, Lu, In) in Submillimeter Wave Region
- Antiferromagnetic Order Observed by Submillimeter Wave ESR in Y_2BaCuO_5
- Far Infrared Transmission Measurements of R_2Cu_2O_5(R=Y, In, Lu and Sc)
- Effects of 6 Months Valsartan Therapy in Asymptomatic Patients with Chronic Severe Aortic Regurgitation(Valvular Heart Disease/Pericarditis/Cardiac Tumor 2 (M), The 69th Annual Scientific Meeting of the Japanese Circulation Society)
- PE-418 Predominance of Negative Remodeling in Premenopausal Women with Unstable Angina(Intravascular Endoscopy/Intravascular Ultrasound 6 (I) : PE71)(Poster Session (English))
- Long-Term Outcome of Diabetic Women after Coronary Stenting
- Magnetoresistance and de Haas-van Alphen Effect of Quasi-Two-Dimensional Metal Ag_2F
- A New Method Using J-Type Long Sheath for Implantation of Indwelling Catheters for Trans-femoral Hepatic Arterial Infusion
- High Field Phase Transitions of Quasi One-Dimensional S=1/2 Heisenberg Antiferromagnet Cu_2(1,4-diazacycloheptane)_2Cl_4 Observed by Submillimenter Wave ESR
- Transport Properties of the High Temperature Phase of Fe_3O_4
- Mossbauer Effect and Dielectric Constant of a YIG Single Crystal and Possibility of a Low Temperature Structural Transition
- The Second Order Magnetoelectric Effect in a High Purity YIG (Yttrium Iron Garnet) Single Crystal
- Magnetic Symmetry of Yttrium Iron Garnet (YIG) in the Low-Temperature Phase
- An Attempt of Direct Separation of Ordinary and Extraordinary Terms of Hall Effect in a Ferromagnet,Fe_3O_4
- A Low Temperature Phase Transition in Yttrium Iron Garnet (YIG)
- Magnetoelectric Effect of Fe_3O_4 at 77K. : II.Electric Field Dependence of Magnetic Anisotropy
- Anisotropic Drude Reflectivity of Ag_2F Crystal
- Losartan Therapy in Patients with Chronic Severe Mitral Regurgitation
- Limitation of Rota-stent for heavily calcified coronary lesions in diabetic patients
- Negative Magnetoresistance of Zn_ Mn_x As_2
- NMR of Mn^, Sb^ and Sb^ in Ferromagnetic MnNiSb
- ^Bi-NQR Investigation of the Non-magnetic Heavy-fermion Compound CeRhBi (Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties)
- Magnetic and Transport Properties of Ce_3Au_Pt_xSb_4
- PJ-367 Effectiveness of Sirolimus-eluting Stent for Diffuse In-stent Restenosis(Coronary revascularization, PCI-17 (IHD) PJ62,Poster Session (Japanese),The 70th Anniversary Annual Scientific Meeting of the Japanese Circulation Society)
- Selective Excitation of Acetylene by Ion-Impact
- Poloidal-Open Divertor Experiments on TPE-2M Reversed Field Pinch
- Reduction of Plasma Resistance by Toroidal Divertor in TPE-2M Reversed-Field Pinch
- Elastic Properties of Dense Kondo Compounds CeNiSn and CePdSn
- Nuclear Magnetic Resonance Study of Co_2B
- Magnetic Susceptibility of Single Crystal Mn_3B_4
- Nuclear Magnetic Resonance Study of Ferromagnetic β_1-MnZn
- NMR Study in MnB_2
- Non-Kramer's Doublet Ground State in PrPtBi
- Magnetoconductance of ZnMn_2As_2
- Polaronic Behavior of Photoelectron Spectra of Fe3O4 Revealed by Both Hard X-ray and Extremely Low Energy Photons