Lattice dynamics in spin-crossover nanoparticles through nuclear inelastic scattering

被引：45

作者：

Felix, Gautier ^{[1
,2
,3
]}

Mikolasek, Mirko ^{[1
,2
,3
]}

Peng, Haonan ^{[1
,2
]}

Nicolazzi, William ^{[1
,2
]}

Molnar, Gabor ^{[1
,2
]}

Chumakov, Aleksandr I. ^{[4
]}

Salmon, Lionel ^{[1
,2
]}

Bousseksou, Azzedine ^{[1
,2
]}

机构：

[1] CNRS, Lab Chim Coordinat, UPR 8241, Toulouse, France

[2] Univ Toulouse, UPS, INP, Toulouse, France

[3] Univ Montpellier 2, Inst Charles Gerhardt, Montpellier, France

[4] ESRF European Synchrotron, F-38043 Grenoble 9, France

来源：

PHYSICAL REVIEW B | 2015年 / 91卷 / 02期

关键词：

VIBRATIONAL SPECTROSCOPY; TRANSITION; COMPLEXES; IRON(II); MOSSBAUER; STATE; FE(TPA)(NCS)(2); FE(PHEN)2(NCS)2; COMPOUND; CRYSTALS;

D O I：

10.1103/PhysRevB.91.024422

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We used nuclear inelastic scattering (NIS) to investigate the lattice dynamics in [Fe(pyrazine)(Ni(CN)(4))] spin crossover nanoparticles. The vibrational density of states of iron was extracted from the NIS data, which allowed to determine characteristic thermodynamical and lattice dynamical parameters as well as their spin-state dependence. The optical part of the NIS spectra compares well with the Raman scattering data reflecting the expansion/contraction of the coordination octahedron during the spin transition. From the acoustic part, we extracted the sound velocity in the low-spin (v(LS) = 2073 +/- 31 m s(-1)) and high-spin (v(HS) = 1942 +/- 23 m s(-1)) states of the particles. The spin-state dependence of this parameter is of primary interest to rationalize the spin-transition behavior in solids as well as its dynamics and finite size effects.

引用

页数：5

共 32 条

[11] Measuring velocity of sound with nuclear resonant inelastic x-ray scattering [J].

Hu, MY ;

Sturhahn, W ;

Toellner, TS ;

Mannheim, PD ;

Brown, DE ;

Zhao, JY ;

Alp, EE .

PHYSICAL REVIEW B, 2003, 67 (09)

[12] The cooperative spin transition in [FexZn1-x(ptz)(6)](BF4)(2) .1. Elastic properties - An oriented sample rotation study by Brillouin spectroscopy [J].

Jung, J ;

Bruchhauser, F ;

Feile, R ;

Spiering, H ;

Gutlich, P .

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1996, 100 (04) :517-522

[13] THE NATURE OF SPIN-STATE TRANSITIONS IN SOLID COMPLEXES OF IRON(II) AND THE INTERPRETATION OF SOME ASSOCIATED PHENOMENA [J].

KONIG, E ;

RITTER, G ;

KULSHRESHTHA, SK .

CHEMICAL REVIEWS, 1985, 85 (03) :219-234

[14] Spin Crossover Probes Confer Multistability to Organic Conducting Polymers [J].

Koo, Yong-Sung ;

Ramon Galan-Mascaros, Jose .

ADVANCED MATERIALS, 2014, 26 (39) :6785-6789

[15] Successive Dynamical Steps of Photoinduced Switching of a Molecular Fe(III) Spin-Crossover Material by Time-Resolved X-Ray Diffraction [J].

Lorenc, M. ;

Hebert, J. ;

Moisan, N. ;

Trzop, E. ;

Servol, M. ;

Buron-Le Cointe, M. ;

Cailleau, H. ;

Boillot, M. L. ;

Pontecorvo, E. ;

Wulff, M. ;

Koshihara, S. ;

Collet, E. .

PHYSICAL REVIEW LETTERS, 2009, 103 (02)

[16] Role of surface vibrational properties on cooperative phenomena in spin-crossover nanomaterials [J].

Mikolasek, Mirko ;

Felix, Gautier ;

Molnar, Gabor ;

Terki, Ferial ;

Nicolazzi, William ;

Bousseksou, Azzedine .

PHYSICAL REVIEW B, 2014, 90 (07)

[17] Vibrational spectroscopy of cyanide-bridged, iron(II) spin-crossover coordination polymers:: Estimation of vibrational contributions to the entropy change associated with the spin transition [J].

Molnár, G ;

Niel, V ;

Gaspar, AB ;

Real, JA ;

Zwick, A ;

Bousseksou, A ;

McGarvey, JJ .

JOURNAL OF PHYSICAL CHEMISTRY B, 2002, 106 (38) :9701-9707

[18] Structural aspects of the relaxation process in spin crossover solids: Phase separation, mapping of lattice strain, and domain wall structure [J].

Nicolazzi, W. ;

Pillet, S. .

PHYSICAL REVIEW B, 2012, 85 (09)

[19] Quantitative macroscopic treatment of the spatiotemporal properties of spin crossover solids based on a reaction diffusion equation [J].

Paez-Espejo, Miguel ;

Sy, Mouhamadou ;

Varret, Francois ;

Boukheddaden, Kamel .

PHYSICAL REVIEW B, 2014, 89 (02)

[20] Measurement and simulation of nuclear inelastic-scattering spectra of molecular crystals [J].

Paulsen, H ;

Winkler, H ;

Trautwein, AX ;

Grünsteudel, H ;

Rusanov, V ;

Toftlund, H .

PHYSICAL REVIEW B, 1999, 59 (02) :975-984

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