Molecule- and polymer-based magnets, a new frontier

被引:43
作者
Epstein, AJ
Miller, JS
机构
[1] OHIO STATE UNIV,DEPT CHEM,COLUMBUS,OH 43210
[2] UNIV UTAH,DEPT CHEM,SALT LAKE CITY,UT 84112
基金
美国国家科学基金会;
关键词
magnetic measurements; magnetic phase transitions;
D O I
10.1016/S0379-6779(96)03798-8
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Molecule- and polymer-based magnets prepared by relatively low temperature organic synthetic methodologies are of increasing interest in materials research. The three distinct models enabling the design of new molecule- and polymer-based magnetic materials are given. Bulk ferromagnetic behavior with hysteresis was first observed below the critical (Curie) temperature, T-c, of 4.8 K for [Fe-III(C(5)Me(5))(2)](.+) [TCNE](.-) (Me = methyl; TCNE = tetracyanoethylene). Since then, many new classes of molecule- and polymer-based magnets have been discovered, including those with T-c above room temperature, such as V(TCNE)(x) . y(CH2Cl2). The important roles of spin and spatial anisotropy and also disorder are illustrated. The anticipated properties of such molecule- and polymer-based magnetic materials may enable their use in future generations of electronic, magnetic and/or photonic/photronic devices ranging from information storage and magnetic imaging to static and low frequency magnetic shielding and magnetic induction.
引用
收藏
页码:231 / 237
页数:7
相关论文
共 63 条
[1]  
AHARONY A, 1980, PHYS REV LETT, V45, P1583, DOI 10.1103/PhysRevLett.45.1583
[2]   LOW-TEMPERATURE SCALING FOR SYSTEMS WITH RANDOM-FIELDS AND ANISOTROPIES [J].
AHARONY, A ;
PYTTE, E .
PHYSICAL REVIEW B, 1983, 27 (09) :5872-5874
[3]   Magnetization and dynamics of reentrant ferrimagnetic spin-glass [MnTPP](::+)[TCNE](center dot-)center dot 2PhMe [J].
Brinckerhoff, WB ;
Morin, BG ;
Brandon, EJ ;
Miller, JS ;
Epstein, AJ .
JOURNAL OF APPLIED PHYSICS, 1996, 79 (08) :6147-6149
[4]  
BRINCKERHOFF WB, 1995, MOL CRYST LIQ CRYST, V272, P195
[5]   Ferromagnetism in a new structural phase of [Fe(C(5)Me(5))(2)][TCNQ] [J].
Broderick, WE ;
Liu, XH ;
Owens, S ;
Toscano, PM ;
Eichhorn, DM ;
Hoffman, BM .
MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1995, 273 :17-20
[6]  
Buchachenko A. L., 1990, RUSS CHEM REV, V59, P307
[7]   METAMAGNETIC PROPERTIES OF ONE-DIMENSIONAL DECAMETHYLFERROCENIUM 7,7,8,8-TETRACYANO-P-QUINODIMETHANIDE (1-1)-[FE(ETA5-C5ME5)2]+.(TCNQ)-. [J].
CANDELA, GA ;
SWARTZENDRUBER, LJ ;
MILLER, JS ;
RICE, MJ .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1979, 101 (10) :2755-2756
[8]   TOWARD MOLECULAR MAGNETS - THE METAL-RADICAL APPROACH [J].
CANESCHI, A ;
GATTESCHI, D ;
SESSOLI, R ;
REY, P .
ACCOUNTS OF CHEMICAL RESEARCH, 1989, 22 (11) :392-398
[9]   SPECIFIC-HEAT OF DECAMETHYLFERROCENIUM TETRACYANOETHANIDE (DMEFC) (TCNE) [J].
CHAKRABORTY, A ;
EPSTEIN, AJ ;
LAWLESS, WN ;
MILLER, JS .
PHYSICAL REVIEW B, 1989, 40 (16) :11422-11424
[10]   FERROMAGNETISM IN MOLECULAR DECAMETHYLFERROCENIUM TETRACYANOETHENIDE (DMEFC TCNE) [J].
CHITTIPEDDI, S ;
CROMACK, KR ;
MILLER, JS ;
EPSTEIN, AJ .
PHYSICAL REVIEW LETTERS, 1987, 58 (25) :2695-2698