Magnetodielectric coupling of a polar organic-inorganic hybrid Cr(II) phosphonate

被引：26

作者：

Nenert, G. ^{[1
]}

Adem, U. ^{[1
]}

Bauer, E. M. ^{[2
]}

Bellitto, C. ^{[2
]}

Righini, G. ^{[2
]}

Palstra, T. T. M. ^{[1
]}

机构：

[1] Univ Groningen, Zernike Inst Adv Mat, Solid State Chem Lab, NL-9747 AG Groningen, Netherlands

[2] CNR, Ist Struttura Mat, Sez Montelibretti, I-00016 Monterotondo, RM, Italy

来源：

PHYSICAL REVIEW B | 2008年 / 78卷 / 05期

关键词：

D O I：

10.1103/PhysRevB.78.054443

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Cr[(H3N-(CH2)(2)-PO3)(Cl)(H2O)] represents a rare example of a polar organic-inorganic hybrid material that exhibits a canted antiferromagnetic order below T-N=5.5 K. The unusual coexistence of a polar crystal structure and magnetic order triggered our investigation of the magnetodielectric coupling. The coupling is evidenced by an anomaly in the temperature dependence of the dielectric constant epsilon below the Neel temperature. The magnetocapacitance is enhanced by one order of magnitude below T-N. The main characteristics of the magnetodielectic response are interpreted by Landau theoretical coupling terms.

引用

页数：5

共 30 条

[1]

ADEM U, UNPUB

[2] Effect of Mn trimerization on the magnetic and dielectric properties of hexagonal YMnO3 -: art. no. 184418 [J].

Aikawa, Y ;

Katsufuji, T ;

Arima, T ;

Kato, K .

PHYSICAL REVIEW B, 2005, 71 (18)

[3] Cr[(H3N-(CH2)2-PO3)(Cl)(H2O)]:: X-ray single-crystal structure and magnetism of a polar organic-inorganic hybrid chromium(II) organophosphonate [J].

Bauer, EM ;

Bellitto, C ;

Colapietro, M ;

Portalone, G ;

Righini, G .

INORGANIC CHEMISTRY, 2003, 42 (20) :6345-6351

[4] Magnetodielectric coupling in a triangular Ising lattice: Experiment and modeling [J].

Bellido, Natalia ;

Simon, Charles ;

Maignan, Antoine .

PHYSICAL REVIEW B, 2008, 77 (05)

[5] Coupled negative magnetocapacitance and magnetic susceptibility in a Kagome staircase-like compound Co3V2O8 [J].

Bellido, Natalia ;

Martin, Christine ;

Simon, Charles ;

Maignan, Antoine .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2007, 19 (05)

[6] New magnetic conductors and superconductors based on BEDT-TTF and BEDS-TTF [J].

Coronado, E ;

Curreli, S ;

Giménez-Saiz, C ;

Gómez-García, CJ .

SYNTHETIC METALS, 2005, 154 (1-3) :245-248

[7] A novel paramagnetic molecular superconductor formed by bis(ethylenedithio) tetrathiafulvalene, tris(oxalato) ferrate(III) anions and bromobenzene as guest molecule:: ET4[(H3O) Fe(C2O4)3]•C6H5Br [J].

Coronado, E ;

Curreli, S ;

Giménez-Saiz, C ;

Gómez-García, CJ .

JOURNAL OF MATERIALS CHEMISTRY, 2005, 15 (14) :1429-1436

[8] Magnetic molecular conductors [J].

Coronado, E ;

Day, P .

CHEMICAL REVIEWS, 2004, 104 (11) :5419-5448

[9] CHEMICAL CONSEQUENCES OF THE POLAR AXIS IN ORGANIC SOLID-STATE CHEMISTRY [J].

CURTIN, DY ;

PAUL, IC .

CHEMICAL REVIEWS, 1981, 81 (06) :525-541

[10] Physics of thin-film ferroelectric oxides [J].

Dawber, M ;

Rabe, KM ;

Scott, JF .

REVIEWS OF MODERN PHYSICS, 2005, 77 (04) :1083-1130

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