Anisotropic Electronic Structure of the Kondo Semiconductor CeFe2Al10 Studied by Optical Conductivity
スポンサーリンク
概要
- 論文の詳細を見る
We report temperature-dependent polarized optical conductivity [\sigma(\omega)] spectra of CeFe2Al10, which is a reference material for CeRu2Al10 and CeOs2Al10 with an anomalous magnetic transition at 28 K. The \sigma(\omega) spectrum along the b-axis differs greatly from that in the ac-plane, indicating that this material has an anisotropic electronic structure. At low temperatures, in all axes, a shoulder structure due to the optical transition across the hybridization gap between the conduction band and the localized 4f states, namely c--f hybridization, appears at 55 meV. However, the gap opening temperature and the temperature of appearance of the quasiparticle Drude weight are strongly anisotropic indicating the anisotropic Kondo effect. The strong anisotropic nature in both electronic structure and Kondo effect is considered to be relevant to the anomalous magnetic phase transition in CeRu2Al10 and CeOs2Al10.
- 2011-03-15
著者
-
Muro Yuji
Department Of Material Science Graduate School Of Science & Technology Kobe University
-
Takabatake Toshiro
Department Of Quantum Matter Adsm Hiroshima University
-
Kimura Shin-ichi
Uvsor Facility Institute For Molecular Science
-
Kimura Shin-ichi
UVSOR Facility, Institute for Molecular Science, Okazaki, Aichi 444-8585, Japan
-
Muro Yuji
Department of Quantum Matter, ADSM, Hiroshima University, Higashihiroshima, Hiroshima 739-8530, Japan
関連論文
- Excitonic Instability in the Transition from the Black Phase to the Golden Phase of SmS under Pressure Investigated by Infrared Spectroscopy(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- High-Field Magnetization and Magnetoresistance of Single-Crystal CeRhSb
- Resonant X-ray Scattering Study at Y K-edge in Y_Ca_xTiO_3(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- Coupling between Orbital and Lattice Degrees of Freedom in Y_Ca_xTiO_3 (0
- Orbitally Ordered State in Y_Ca_xTiO_3 (0 < x ≤ 0.5)(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- 23pRA-6 Application of infrared microspectroscopy and imaging using synchrotron radiation
- Different Electronic Ground States in the Hexagonal and Cubic Phases of UAu_2Sn
- The Origin of Magnetic Field Dependence of Specific Heat in Single-Crystalline CeNiSn
- Anisotropic Transport and Magnetic Properties and Magnetic-Polaron-like Behavior in CeTe_ : Condensed Matter: Electronic Properties, etc.
- Elastic, Thermal, Magnetic and Transport Properties of Kondo Compounds CeRhIn and CeRhSn(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- Structural and Electronic Interplay in the Gap Formation in CeRhAs_Sb_x (0 ≦ x ≦ 1)
- Hole-doping and Pressure Effects on the Metal-Insulator Transition in Single Crystals of Y_Ca_xTiO_3(0.37 ≤ x ≤ 0.41)(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- Hole-doping and Pressure Effects on the Metal-Insulator Transition in Single Crystals of Y_Ca_xTiO_3 (0.37≦x≦0.41)
- Magnetic and Thermoelectric Properties of Ce_2NiB_ (δ ≅ 0.3), a Ni-incorporated Variant of CeB_6
- Magnetic and Thermoelectric Properties of Ce_2NiB_ (δ*0.3), a Ni-incorporated Variant of CeB_6
- Heterogeneous Mixed-Valence States in RPd_3S_4 (R=Eu and Yb) Viewed from Thermopower, Electrical Resistivity and Specific Heat
- Thermoelectric Properties of Binary Cd-Yb Quasicrystal and Its Approximant(Electrical Properties of Condensed Matter)
- Thermoelectric Properties of Valence-Fluctuating Eu Compound with a Clathrate-Like Structure, Eu_3Pd_Ge_6(Condensed Matter : Electronic Structure, Electrical, Mgagnetic and Optical Properties)
- Change of Electronic Structure Induced by Magnetic Transitions in CeBi(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- 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
- Photo Raman Scattering Study of a Kondo Insulator YbB_
- Magnetocrystalline Anisotropy and Crystal Fields in the Weak-Ferromagnet Ce_4Ni_3Pb_4(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- Thermoelectric and Magnetic Properties of a Narrow-Gap Semiconductor FeGa_3(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- Neutron Scattering Study of Kondo Lattice Antiferromagnet YbNiSi_3(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- Giant Uniaxial Anisotropy in the Magnetic and Transport Properties of CePd_5Al_2(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- Pressure-Induced Release of Magnetic Frustration in a Quasi-Kagome Antiferromagnet YbAgGe(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- Temperature- and Field-Induced First-Order Ferromagnetic Transitions in MnFe(P_Ge_x)(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- Reduced Thermal Conductivity and Strong Electron-Phonon Interactions in Enhanced Pauli Paramagnets AOs_4Sb_ (A=Sr, Ba)(Condensed Matter : Structure, Mechanical and Thermal Properties)
- Effects of La Substitution on the Energy Gaps and Superstructures of CeRhAs(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- Probing Glasslike Excitations in Single-Crystalline Sr_8Ga_Ge_ by Specific Heat and Thermal Conductivity(Condensed Matter : Structure, Mechanical and Thermal Properties)
- Nearly Ferromagnetic Metals AFe_4Sb_ (A=Ca, Sr, and Ba)(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- Divalent State in YbGaGe : Magnetic, Thermal, Transport and Structural Studies(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- Divalent State in YbGaGe : Magnetic, Thermal, Transport and Structural Studies
- Successive Magnetic Transitions in a Frustrated Compound YbAgGe (Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties)
- Photoemission Study of Substitution Effects on the Conduction-Band States in the Kondo Insulator YbB_ : Condensed Matter: Electronic Properties, etc.
- High-Resolution Photoemission Study of the Kondo Insulator YbB_
- 24aRL-6 I型クラスレートBa_8Ga_Sn_の光学伝導度スペクトル(24aRL クラスレート・高圧物性,領域7(分子性固体・有機導体))
- Thermopower of Ce_xRB_6(R=La, Pr and Nd)(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- ^As NQR/NMR Study of Successive Phase Transitions and Energy Gap Formation in Kondo Semiconductor CeRhAs (Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties)
- ^As NQR/NMR Study of Successive Phase Transitions and Energy Gap Formation in Kondo Semiconductor CeRhAs
- Kondo Semiconductors
- Complex Magnetic Structures of a Shastry-Sutherland Lattice TmB_4 Studied by Powder Neutron Diffraction Analysis(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- Magnetic and Thermoelectric Properties of a Heterogeneous Mixed-Valence System, Yb_2Pt_3Sn_5 (Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties)
- Magnetic and Thermoelectric Properties of a Heterogeneous Mixed-Valence System, Yb_2Pt_3Sn_5
- Magnetic Properties of the Heavy-Fermion Antiferromagnet Ce_7Ni_3
- Resonant Photoemission Studies of Thulium Monochalcogenides around the Tm 4d Threshold
- Normal and Superconducting Properties of Noncentrosymmetric Heavy Fermion CeRhSi_3(Frontiers of Novel Superconductivity in Heavy Fermion Compounds)
- Combination of Dense Kondo Effect and RKKY Interaction in CeCuSb_2, Investigated by NMR
- Origin of Middle-Infrared Peaks in Cerium Compounds(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- 22aE-3 Magnetoresistance and Charge Density Wave in a Layered Compound CeTc_2
- Magnetic Field Dependence of Magnetic Clusters in the Random Magnet Fe_(Ni_Mn_)_
- 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
- Magneto-Optical Study on GdAs in the Infrared Region
- Optical Measurements and Band Calculations of FeSi
- Antiferromagnetism and Crystalline Electric Field Effect of Ce_2Pt_3Si_5(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- 21pPSA-97 Electronic structure of Ce_Gd_xCoGe_3 : Ce and Gd 4d-4f resonant photoemission studies
- 27aPS-11 Various Kondo ground states and non-Fermi-liquid behavior in heavy-fermion system CeNi_Co_xGe_2
- Low-Energy Electrodynamics of Heavy Quasiparticles in ZrZn_2(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- Incommensurate Magnetic Structure of the Heavy Fermion Antiferromagnet Ce_7Ni_3 : Condensed Matter: Electronic Properties, etc.
- Effects of Co Substitution on Magnetic and Thermoelectric Properties of BaFe4Sb12
- Thermoelectric Properties of Single-Crystal CeRhSn with Valence Fluctuations
- 26aTH-2 トポロジカル絶縁体Bi_2Te_3超薄膜へのPbドープによるフェルミ準位制御と電気伝導(26aTH 表面界面電子物性(トポロジカル表面・スピン・ラシュバ効果),領域9(表面・界面,結晶成長))
- 26pPSA-23 Sr_2Ir_Rh_xO_4における光学測定から見たスピン・軌道相互作用II(26pPSA 領域8ポスターセッション(低温2),領域8(強相関係:高温超伝導,強相関f電子系など))
- 25aTJ-9 VIII型クラスレートBa_8Ga_Sn_の光学伝導度スペクトル(25aTJ 籠状物質(クラスレート化合物),領域7(分子性固体・有機導体))
- 26pEJ-7 3次元角度分解光電子分光を用いたLiFeAsの電子状態の研究(26pEJ 鉄砒素系(企画講演・111系・その他),領域8(強相関係:高温超伝導,強相関f電子系など))
- 28aHE-7 強磁性半導体EuO超薄膜における3次元角度分解光電子分光(28aHE 領域3,領域9合同 表面・界面磁性,領域9(表面・界面,結晶成長))
- 25pPSA-4 YbAl_2の角度分解光電子分光(25pPSA 領域5ポスターセッション,領域5(光物性))
- 25aPS-148 SmB_6の3次元角度分解光電子分光(25aPS 領域8ポスターセッション(磁性(f電子系)1),領域8(強相関系:高温超伝導,強相関f電子系など))
- 28aHE-7 強磁性半導体EuO超薄膜における3次元角度分解光電子分光(28aHE 領域3,領域9合同 表面・界面磁性,領域3(磁性,磁気共鳴))
- Optical Study on Electronic Structure of Rare-Earth Sesquioxides : Condensed Matter: Electronic Properties, etc.
- 23aHA-4 三次元トポロジカル絶縁体上への二次元量子スピンホール相単一バイレイヤーBiの成長(23pHA 表面界面電子物性(トポロジカル表面・スピン・ラシュバ効果),領域9(表面・界面,結晶成長))
- 22aTN-2 GdTe_2の角度分解光電子分光(22aTN 光電子分光(強相関系),領域5(光物性))
- 21pPSA-30 光電子分光による鉄(現代鋼-日本刀-純鉄)における初期酸化プロセス研究(21pPSA 領域5ポスターセッション,領域5(光物性))
- 21pGL-10 偏光依存型3次元角度分解光電子分光を用いたLiFeAsの電子状態の研究(21pGL 鉄砒素系(111,1111系),領域8(強相関系:高温超伝導,強相関f電子系など))
- 23pJB-8 強磁性半導体EuO超薄膜における3次元角度分解光電子分光II(23pJB 領域9,領域3合同 表面磁性,領域9(表面・界面,結晶成長))
- 22pGC-8 SmB_6の3次元角度分解光電子分光II(22pGC 価数揺動,少数キャリア等,領域8(強相関系:高温超伝導,強相関f電子系など))
- 23pJB-8 強磁性半導体EuO超薄膜における3次元角度分解光電子分光II(23pJB 領域9,領域3合同表面磁性,領域3(磁性,磁気共鳴))
- Pressure Effect on the Anomalous Phase Transition in CeOs2Al10
- Antiferro-Quadrupolar Ordering at the Lowest Temperature and Anisotropic Magnetic Field--Temperature Phase Diagram in the Cage Compound PrIr2Zn20
- Anisotropic Electronic Structure of the Kondo Semiconductor CeFe2Al10 Studied by Optical Conductivity
- Formation of a Hybridization Gap in a Cage-Like Compound CeFe2Al10
- Electronic Structures and Thermoelectric Properties of Sb-Doped Type-VIII Clathrate Ba_8Ga_Sn_
- Superconductivity and Structural Phase Transitions in Caged Compounds RT2Zn20 ($\text{R} = \text{La}$, Pr, $\text{T} = \text{Ru}$, Ir)
- Magnetic Field--Temperature Phase Diagram of the Ferro-quadrupolar State and Crystal Electric Field Effect in UCu2Sn
- NMR Evidence of Freezing of Rattling Motion in LaIr2Zn20 and LaRu2Zn20
- Magnetic Structure and Its Long-Time Variation in the Multistep Metamagnet CeIr3Si2
- Combination of Dense Kondo Effect and RKKY Interaction in CeCuSb2, Investigated by NMR
- Antiferromagnetism and Crystalline Electric Field Effect of Ce_2Pt_3Si_5
- Neutron Scattering Study of Kondo Lattice Antiferromagnet YbNiSi_3
- Sudden Disappearance of the First-Order Transition in $\beta$-Pyrochlore KOs2O6 under Low Pressure
- Transport and Magnetic Properties of a Low-Density Carrier System SmBiPt
- Well-Defined Crystal Field Splitting Schemes and Non-Kramers Doublet Ground States of f Electrons in PrT_{2}Zn
- NMR and NQR Studies on Non-centrosymmetric Superconductors Re
- Strong Coupling of Rattling Phonon to Conduction Electrons in Semimetallic Type-I Clathrate Ba
- Elastic, Thermal, Magnetic and Transport Properties of Kondo Compounds CeRhIn and CeRhSn(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- Reduced Thermal Conductivity and Strong Electron-Phonon Interactions in Enhanced Pauli Paramagnets AOs_4Sb_ (A=Sr, Ba)(Condensed Matter : Structure, Mechanical and Thermal Properties)