Spin--Charge Coupling in the Molecular Conductor (DIETSe)
スポンサーリンク
概要
- 論文の詳細を見る
The quasi-one-dimensional (Q1D) \pi--d hybrid molecular conductor (DIETSe)<inf>2</inf>FeBr<inf>4</inf>undergoes an antiferromagnetic (AF) transition of d-electron spins, associated with a metal--insulator (M--I) transition at 7 K. The existence of a Q1D Fermi surface in the high-temperature metallic state is confirmed by the appearance of Lebed resonances, which disappear below 7 K, suggesting an AF-order-induced spin density wave transition. The application of hydrostatic pressure increases the M--I transition temperature, indicating the enhancement of the \pi--d interaction. Angle-dependent magnetic torque measurements reveal a spin-flop transition of AF d-electron spins at 3.4 T. The magnetic easy axis is tilted \pm 54 deg from the b-axis towards the c-axis. The magnetoresistance (MR) shows an anomaly in the spin-flop field, associated with a small hysteresis. The AF order is suppressed with high magnetic fields on the order of 20 T, above which the MR shows a very sharp and large anomaly. A large hysteresis loop appears in the MR below the critical field of the AF transition. The results indicate a significant interplay between itinerant \pi-electrons and local moments of d-electron spins.
- 2013-04-15
著者
-
Graf David
NHMFL
-
Brooks James
NHMFL
-
Saito Gunzi
Division Of Chemistry Graduate School Of Science Kyoto University
-
Maesato Mitsuhiko
Division Of Chemistry Graduate School Of Science Kyoto University
-
Kitagawa Hiroshi
Division For Research Of Engineering Graduate School Osaka University.
-
Imakubo Tatsuro
Department Of Chemistry Graduate School Of Arts And Sciences The University Of Tokyo
-
Kiswandhi Andhika
NHMFL
-
Saito Gunzi
Division of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
-
Maesato Mitsuhiko
Division of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
-
Furushima Yoshitomo
Division of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
-
Graf David
NHMFL/Physics, Florida State University, Tallahassee, FL 32310, U.S.A.
-
Brooks James
NHMFL/Physics, Florida State University, Tallahassee, FL 32310, U.S.A.
-
Kiswandhi Andhika
NHMFL/Physics, Florida State University, Tallahassee, FL 32310, U.S.A.
関連論文
- 26aYC-5 ドメイン構造を有する有機超伝導体κ_L-(DMEDO-TSeF)_2[Au(CN)_4](THF)の角度依存性磁気抵抗(κ型,輸送測定,中性-イオン性転移,領域7,分子性固体・有機導体)
- 23aTC-12 ドメイン構造を有する有機超伝導体κ_L-(DMEDO-TSeF)_2[Au(CN)_4](THF)のフェルミ面(23aTC κ-ET系,領域7(分子性固体・有機導体))
- Crystal Structures, Degree of Charge Transfer, and Non-Linear Optical Characteristics of Intramolecular Charge-Transfer Compounds : Indoline-Substituted Tricyanoquinodimethanes
- 23aQB-11 2次元系有機超伝導体κ_H-(DMEDO-TSeF)_2[Au(CN)_4](THF)の強磁場角度依存性磁気抵抗(分子デバイス・磁気抵抗効果,領域7,分子性固体・有機導体)
- Complex Formation between a Nucleobase and Tetracyanoquinodimethane Derivatives : Crystal Structures and Transport Properties of Charge-Transfer Solids of Cytosine
- New α'-Type ET Salt (ET)_2H_2F_3 by Electrocrystallization Using Ionic Liquid
- Charge-Transfer Complexes between Indoline-Tricyanoquinodimethane Compounds and 7,7,8,8-Tetracyanoquinodimethane
- Structural Properties and Degree of Intramolecular Charge Transfer of an N-Alkyl Indoline-Tricyanoquinodimethane System
- Conducting and Magnetic Properties of 1-Ethyl-3-methylimidazolium (EMI) Salts Containing Paramagnetic Irons : Liquids [EMI][M^Cl_4] (M = Fe and Fe_Ga_) and Solid [EMI]_2[Fe^Cl_4]
- Phenalenyl-Based Highly Conductive Molecular Systems with Hydrogen-Bonded Networks : Synthesis, Physical Properties, and Crystal Structures of 1,3- and, 1,6-Diazaphenalenes, and Their Protonated Salts and Charge-Transfer Complexes with TCNQ
- 28aWB-3 Far-IR reflectivity of k-(ET)_2Cu(CN)[N(CN)_2]
- Development of Conductive Organic Molecular Assemblies : Organic Metals, Superconductors, and Exotic Functional Materials
- Infrared and Raman Study of the Charge-ordered State of θ-(ET)_2Cu_2CN[N(CN)_2]_2(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- Spin Liquid in a Spin-Frustrated Organic Mott Insulator(Frustrated Systems, Field-Induced Phase Transitions and Dynamics in Quantum Spin Systems)
- Ionicity Phase Diagram of Trifluoromethyl-TCNQ (CF_3TCNQ) Charge-Transfer Solids
- SPECTROSCOPIC STUDIES OF HYBRID THIN FILMS CONSISTING OF A CLAY AND TETRATHIAFULVALENE
- Synthesis and Structure of a Novel Cyclic Polysulfide, 2,4,6-Tris[bis(trimethylsilyl)methyl]phenyloctathionane
- 1,2,3,4,5,6,7,8-Octathionane, a Novel Cyclic Polysulfide. Synthesis and Crystal Structure
- Organic Paramagnetic Ionic Liquids Based on Anion Containing 2,2,6,6-Tetramethyl-1-piperidinyloxyl Radical Moiety
- Development of Conductive Organic Molecular Assemblies : Organic Metals, Superconductors, and Exotic Functional Materials
- Properties of Reaction Products between Cytosine and F_4TCNQ in MeOH : Two Hemiprotonated Cytosine Salts with F_4TCNQ Radical Anion and Methoxy Adduct Anion
- Guest-Exchange and Guest-Release via Gas-Solid Contact in Clathrate Crystals Based on 2, 5-Bis(9-hydroxyfluoren-9-yl)thieno[3, 2-b]thiophene as a Host Compound
- Numerical Solutions of Two-Dimensional Elastic, Plastic Problems by Conformal Mapping and Finite-Difference Method : 3rd Report, Elasto-Plastic Torsion of Circumferentially Grooved Shafts
- Two-Dimensional Superconducting Properties of the Organic Superconductor \kappa_{\text{L}}-(DMEDO-TSeF)2[Au(CN)4](THF) with Domain Structures
- Numerical Solutions of Two-Dimensional Elastic, Plastic Problems by Conformal Mapping and Finite-Difference Method : 2nd Report, Elastic Torsion of Circumferentially Grooved Shafts
- Numerical Solutions of Two-Dimensional Elastic, Plastic Problems by Conformal Mapping and Finite-Difference Method : 1st Report, Elastic Solution of a Strip with Circular Notches under Tension
- Uniaxial Strain Effects on Mott and Superconducting Transitions in \kappa-(ET)2Cu2(CN)3
- 24aBK-7 (DIETSe)_2MX_4[M=Fe,Ga,X=Cl,Br]の強磁場物性(24aBK 中性-イオン転移・π-d系など,領域7(分子性固体・有機導体))
- Spin--Charge Coupling in the Molecular Conductor (DIETSe)
- 19aEB-8 (DIETSe)_2FeBr_Cl_4_の強磁場物性(19aEB π-d系(BETS,フタロシアニン,DIERTSeなど),領域7(分子性固体・有機導体))
- 21pFE-1 dHvA測定で見たラットリング超伝導体KOs_2O_6の巨大電子格子相互作用(21pFE 超伝導物質2(ラットリング,合成,高圧など),領域8(強相関系:高温超伝導強相関f電子系など))
- 19aEB-7 擬一次元π-d系(DIETSe)_2MX_4[M=Fe,Ga,X=Cl,Br]の低温電子状態(19aEB π-d系(BETS,フタロシアニン,DIERTSeなど),領域7(分子性固体・有機導体))
- 26pXN-15 (DIETSe)_2FeBr_Cl_における磁性と伝導性の相関(26pXN π-d系(BETS等),領域7(分子性固体・有機導体))
- Changeover of the Thermodynamic Behavior for Hydrogen Storage in Rh with Increasing Nanoparticle Size
- 28aBC-4 (DIETSe)_2MB_Cl_2[M=Ga,Fe]の強磁場物性(28aBC 擬1次元系・電荷秩序など,領域7(分子性固体))