Pressure and temperature dependence of Raman scattering of MnWO4

被引：19

作者：

Dai, R. C. ^{[1
]}

Ding, X. ^{[2
]}

Wang, Z. P. ^{[1
]}

Zhang, Z. M. ^{[1
]}

机构：

[1] Univ Sci & Technol China, Ctr Phys Expt, Hefei 230026, Anhui, Peoples R China

[2] Anhui Univ, Dept Phys, Hefei 230601, Anhui, Peoples R China

来源：

CHEMICAL PHYSICS LETTERS | 2013年 / 586卷

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1016/j.cplett.2013.09.035

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In situ Raman spectra of MnWO4 have been measured at high pressures up to 29.4 GPa and temperatures up to 1473 K. It is shown that a pressure-induced phase transition from the monoclinic to triclinic phase starts at about 17.7 GPa at room temperature, and the phase transition is confirmed to be reversible. A temperature induced melting from monoclinic to molten state starts at 1100 K and is completed at 1300 K. After cooling, molten MnWO4 recrystallizes into monoclinic MnWO4 crystals. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：76 / 80

页数：5

共 17 条

[11] Lattice dynamics and temperature-dependent Raman and infrared studies of multiferroic Mn0.85Co0.15WO4 and Mn0.97Fe0.03WO4 crystals [J].

Maczka, M. ;

Ptak, M. ;

Hermanowicz, K. ;

Majchrowski, A. ;

Pikul, A. ;

Hanuza, J. .

PHYSICAL REVIEW B, 2011, 83 (17)

[12] CALIBRATION OF THE RUBY PRESSURE GAUGE TO 800-KBAR UNDER QUASI-HYDROSTATIC CONDITIONS [J].

MAO, HK ;

XU, J ;

BELL, PM .

JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH AND PLANETS, 1986, 91 (B5) :4673-4676

[13] Thick-film humidity sensor based on porous MnWO4 material [J].

Qu, WM ;

Meyer, JU .

MEASUREMENT SCIENCE AND TECHNOLOGY, 1997, 8 (06) :593-600

[14] High-pressure Raman spectroscopy and lattice-dynamics calculations on scintillating MgWO4: Comparison with isomorphic compounds [J].

Ruiz-Fuertes, J. ;

Errandonea, D. ;

Lopez-Moreno, S. ;

Gonzalez, J. ;

Gomis, O. ;

Vilaplana, R. ;

Manjon, F. J. ;

Munoz, A. ;

Rodriguez-Hernandez, P. ;

Friedrich, A. ;

Tupitsyna, I. A. ;

Nagornaya, L. L. .

PHYSICAL REVIEW B, 2011, 83 (21)

[15]

Ruiz-Fuertes S., 2010, APPL PHYS, V107

[16] Ferroelectric polarization flop in a frustrated magnet MnWO4 induced by a magnetic field [J].

Taniguchi, K. ;

Abe, N. ;

Takenobu, T. ;

Iwasa, Y. ;

Arima, T. .

PHYSICAL REVIEW LETTERS, 2006, 97 (09)

[17] CERAMIC SENSORS FOR HUMIDITY DETECTION - THE STATE-OF-THE-ART AND FUTURE-DEVELOPMENTS [J].

TRAVERSA, E .

SENSORS AND ACTUATORS B-CHEMICAL, 1995, 23 (2-3) :135-156

← 1 2 →