Spin Dynamics in Itinerant Antiferromagnetic γFeMn Alloys
スポンサーリンク
概要
- 論文の詳細を見る
The spin wave excitations in the itinerant antiferromagnetics of γFeMn alloys have been studied by neutron scattering. The isotropic dispersion relation has been observed for γFe_<0.7>Mn_<0.3> and γFe_<0.5>Mn_<0.5>. The velocities of spin waves at room temperature are 230±30 meVA, 220±30 meVA and 160±30 meVA for Fe_<0.7>Mn_<0.3>, Fe_<0.5>Mn_<0.5> and Fe_<0.3>Mn_<0.7>, respectively. All samples have the spin wave energy gaps of about 10 meV at 0 K which shows a similar temperature dependence. The damping of the spin wave is significant and it depends on the momentum transfer of the spin waves. The magnon-like excitation persists even 200 degrees above the Neel temperature for Fe_<0.5>Mn_<0.5>. The results are favorable to the itinerant electron model where the multiple spin density wave state is assumed to exist.
- 社団法人日本物理学会の論文
- 1976-10-15
著者
-
Tajima Keisuke
Department Of Physics Faculty Of Science And Technology Keio University
-
Tajima Keisuke
Physics Department Tohoku University
-
Noda Yasuhisa
Sendai College Of Radio Tdechnology
-
Noda Yasuhisa
Department Of Physics Tohoku University:sendai National College Of Technology
-
Ishikawa Yoshikazu
Department Of Materials Science And Technology Hirosaki University
-
Endoh Yasuo
Department Of Chemistry Kyoto University
-
Endoh Yasuo
Department Of Physics Faculty Of Science Tohoku University
-
Tajima Keisuke
Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
-
TAJIMA Keisuke
Department of Applied Chemistry, School of Engineering, The University of Tokyo
関連論文
- Spin Fluctuations of Itinerant Electorons in MnSi Studied by Muon Spin Rotation and Relaxation
- Positive Muon Spin Rotation and Relaxation Studies in the Helically Ordered State of MnSi
- A Field Induced Antiferromagnetic Order in Cu (HCOO)_2・4D_2O above T_N
- Slow Neutron Polarization by Longitudinally Polarized Proton Filter
- Neutron Magnetic Scattering Studies on Rare Earth Compounds with Highly Correlated Electrons : Chapter 7. Other Topics
- Energy Spectrum of Spin Fluctuations in Superconducting La_Sr_xCuO_4(0.10≤x≤0.25) : Condensed Matter: Electronic Properties, etc.
- Single Crystal Neutron Diffraction Study of the Magnetic Phase Diagram of the Heavy Fermion Superconductor UPd_2Al_3
- Neutron Diffraction Study of PrCo_2Si_2 in Pulsed High Magnetic Field
- Dynamical Magnetic Structure of the Spin Density Wave State in Cr
- Magnetic Excitations in Spin Density Wave (SDW) State of Cr
- First Evidence of Interfacial Magnetic Roughness in Fe/Cr Artificial Multilayer Studied by Neutron Diffraction Measurement
- Magnetic Phase Diagram and Metal-Insulator Transition of NiS_Se_x : Condensed Matter: Electronic Properties, etc.
- Neutron Scattering Studies of the Ordered Structure of C_Rb
- Polarized Neutron Studies for Cr Excitations
- RKKY Interaction and Kondo Effect in (Ce,La) PdSn
- Neutron Powder Diffraction from Polymorphs of BaPb_Bi_O_3 : Electrical Properties of Condensed Matter
- Neutron Diffraction Studies of Atomic Structures of Amorphous Fe-Ge and Ni-Ge Alloys
- Neutron Diffraction Studies on a Non-Coupled Giant Magnetoresistance System, Co/Cu/NiFe/Cu Multilayer
- Spin Reorientation in Fe/Nd Multilayered Films from Neutron Diffraction Experiments
- Polarized Neutron Diffraction Studies of Fe/Cr Multilayered Films with Giant Magnetoresistance Effect
- Neutron Diffraction Studies on Magnetic Properties of Fe/Dy Artificial Superstructured Films
- Structure Modulation of Fe-V Artificial Superstructure Films
- Magnetic Properties of Fe-V Multilayered Films with Artificial Superstructures
- Interface Magnetism of Fe-Sb Multilayered Films with Artificial Superstructure from ^Fe and ^Sb Mossbauer Spectroscopy,Neutron Diffraction and FMR Experiments
- Crystal Lattice Changes Induced by Magnetic Field and Helifan Structure in Holmium Metal
- Neutron Scattering Studies on Structural Phase Transition in CeCu_6 and LaCu_6
- Soft Phonons and Structural Phase Transition in CeCu_6
- Crystal Chirality and Helicity of the Helical Spin Density Wave in MnSi.II.Polarized Neutron Deffraction
- Crystal Chirality and Helicity of the Helical Spin Density Wave in MnSi.I.Convergent-Beam Electron Diffraction
- Ferromagnetic Transition of Heisenberg Ferromagnetic Metal of CoS_2 : Static Critical Properties
- Random Anisotropy Effect in Fe_Co_TiO_3
- Dynamic Spin Properties of La_Sr_CuO_4
- Low-Energy Spin Fluctuations in La_Sr_xCU_Zn_yO_4 (x=0.14, y=0.012)
- Spin Correlations in High Temperature Superconductors of "214" Cuprate Oxides : II-C Neutron Scattering, NMR and NQR and Ultrasonics : II Oxide Superconductors; Experiments II : Electronic States
- Excess Oxygen Doping in Single Crystals of La_Bi_xCuO_ with or without Macroscopic Phase Separation
- An Overall Energy Spectrum of Magnetic Fluctuations in the Superconducting La_Sr_CuO_4
- Spin Wave Stiffness Constant of Laves Phase Invar Compound (Zr_Nb_)Fe_2
- Space-Group Determination of La_2CuO_ by Conventional and Convergent-Beam Electron Diffraction
- Complete Two-Dimensional Antiferromagnetic Spin-Wave Dispersion Relation of La_2NiO_4 Determined by Chopper Spectrometer Installed at the Pulsed Neutron Source
- Determination of Space Group and Refinement of Structure Parameters for La_2CuO_ Crystals : Condensed Matter
- X-Ray Diffraction Study on Thermal Properties of Crystal Lattices in CeP and CeAs
- Three-Dimensional Antiferromagnetic Order and Anisotropic Magnetic Properties in Bi_2CuO_4
- "Spin-Driven" Crystal Lattice Distortion in Frustrated Magnet CuFeO_2 : Synchrotron X-ray Diffraction Study(Condensed Matter : Structure, Mechanical and Thermal Properties)
- Neutron Diffraction Study on the Short-Range Order in ZrO_ Interstitial Solid Solution
- Effect of Magnetic Transitions and Charge-Ordering on Crystal Lattice in Nd_Sr_MnO_3
- Universality Class of Magnetic Phase Transition in the Triangular Lattice Antiferromagnet CsMnI_3
- Pressure Effects on Spin Density Wave in Cr Rich Cr-Al,Si,Mn,Fe and Co Alloys
- The First Order Phase Transition from Paramagnetic to Commensurate S.D.W.State in Dilute CrSi Alloys
- Neutron Depolarization Studies on Magnetization Process Using Pulsed Polarized Neutrons
- EPR and AFMR of Bi_2CuO_4 in Submillimeter Wave Region
- Magnetic Structures of GdCu_Zn_x System
- Small Angle Neutron Scattering Studies on Fe_Al_Reentrant Spin Glass
- Neutron Depolarization Studies on Reentrant Spin Glass AuFe Alloy
- Monolayer of Ferromagnetic MnSb
- Mossbauer Study of α-, β- and γ-FeOOH
- Mossbauer Spectrum for Fe^ and Co^ in Cr Metal at Very Low Temperature
- InGaN-Based Single-Chip Multicolor Light-Emitting Diodes
- Two-Dimensional Spin Correlations in High Stage CoCl_2-Graphite Intercalation Compounds
- Pressure Dependence of Spin Density Wave in Cr-0.5 at.%Ge
- Lattice Dynamics in Ferromagnetic Invar Alloys,Fe_3Pt and Fe_Ni_
- Matamagnetism of CoS_2 under High Pressure and in Co (S_xSe_)_2
- Spin-Wave Excitations in Oxygen Doped La_2NiO_
- A New Oxide Spin-Glass System of(1-x) FeTiO_Fe_2O_3. IV.Neutron Scattering Studies on a Reentrant Spin Glass of 79FeTiO_3-21Fe_2O_3 Single Crystal
- Magnetic Phase Diagram of Dy Determined by AC Calorimetry
- Phase Separation Process in FeCr Alloys Studied by Neutron Small Angle Scattering
- Extreme Ultraviolet Photoemission of MnSi,FeSi and CoSi
- Multiple Phase Transitions of Single Crystalline CeGa_2
- Spin Waves in a Heusler Alloy Cu_2MnAl
- Resolution Correction for Time-of-Flight Neutron Scattering Experiments Using the Monte Carlo Method
- Neutron Paramagnetic Scattering from Antiferromagnetic RbMnF_3 and Mn_3Pt Using Time of Flight Technique
- Resolution Function and Recent Developments of the Multi-Analyser Crystal Spectrometer MAX
- Spin Dynamics in a Quasi-Two Dimensional Antiferromagnet MnTiO_3
- Anomalous Elastic Properties of Fe_2TiO_4
- Giant Magnetostriction and Magnetic Anisotropy of Fe_2TiO_4
- Neutron and Magnetic Studies of a Single Crystal of Fe_2TiO_4
- Magnetic Properties of Cr_NbS_2
- X-Ray Diffraction Studies of FeRh_Pd_ Alloy with Orthorhombic Structure
- Lattice Modulation and Magnetic Structure of Er Induced by Magnetic Field
- Spin Polarization in a Ferromagnetic Heusler Alloy Pd_2MnSn
- Magnetic Phase Transitions and Lattice Changes in Rare Earth Metals Studied by X-ray Diffraction under a Magnetic Field
- Observation of the Initial Stage of the First Order Magnetic Phase Transition in Erbium Single Crystal
- X-Ray Diffraction Study on the First Order Magnetic Phase Transition of Erbium Single Crystal
- Coexistence of Two Magnetic Phases near Curie Temperature in Dy
- Crystal Lattice Modulations Induced by Helifan Magnetic Structure in Holmium Metal
- Magnetic Excitations in an Ordered Ferromagnetic Alloy Fe_3Pt
- Spin Dynamics in Itinerant Antiferromagnetic γFeMn Alloys
- Superconducting Electromagnet for X-Ray Diffraction
- Neutron Diffraction and Paramagnetic Scattering from a High Pressure Phase of MnGeO_3 (Ilmenite)
- Effect of Magnetic Field on Crystal Lattice in Dysprosium Studied by X-Ray Diffraction
- The First Order Magnetic Phase Transition in Dy-4%Y Alloy
- Magnetization Process of Spiral to Ferromagnet in Dy
- Magnetocrystalline Anisotropy of Rare Earth Impurities Doped in Gadolinium. : I. Heavy Rare Earth
- Lattice Dynamics and Invar Properties in f.c.c FeMn Alloy
- Spin Dynamics in Invar (Fe_Ni_, Fe_3Pt) and Non Invar (Fe_Ni_) Alloys
- Magnetic Phase Transition of MnP Under Magnetic Field
- Antiferromagnetism of γ Iron Manganes Alloys
- A New Oxide Spin Glass System of(1-x) FeTiO_Fe_2O_3.III.Neutron Scattering Studies of Magnetization Processes in a Cluster Type Spin Glass of 90FeTiO_3-10Fe_2O_3
- Zero Sound Anomaly in a Ferromagnetic Invar Alloy Fe_Ni_
- X-Ray Diffraction Studies on Magneto-Volume Effect and the First Order Phase Transition in Lu(Co_Ga_x)_2 : Condensed Matter: Electronic Properties, etc.
- InGaN-Based Single-Chip Multicolor Light-Emitting Diodes