Ultrastable phonon frequencies in α-quartz-type BPO4 at high temperature

被引：3

作者：

Le Parc, R. ^{[1
]}

Buixaderas, E. ^{[2
,3
]}

Levelut, C. ^{[1
]}

Hermet, P. ^{[4
]}

Pereira, A. S. ^{[5
,6
]}

Cambon, O. ^{[4
]}

Roiland, C. ^{[2
,7
]}

Simon, P. ^{[2
]}

Haines, J. ^{[4
]}

机构：

[1] Univ Montpellier, CNRS, L2C, F-34095 Montpellier, France

[2] Univ Orleans, CNRS, UPR 3079, CEMHTI, F-45071 Orleans 2, France

[3] Czech Acad Sci, Inst Phys, Prague 18221 8, Czech Republic

[4] Univ Montpellier, ENSCM, CNRS, ICGM, F-34095 Montpellier, France

[5] Univ Fed Rio Grande do Sul, Inst Fis, BR-91501970 Porto Alegre, RS, Brazil

[6] Univ Fed Rio Grande do Sul, Escola Engn, BR-91501970 Porto Alegre, RS, Brazil

[7] Univ Rennes 1, CNRS, ISCR, F-35042 Rennes, France

来源：

APPLIED PHYSICS LETTERS | 2019年 / 115卷 / 14期

关键词：

CRYSTAL-STRUCTURES; PRESSURE; BERLINITE; PHOSPHATE; ALPO4;

D O I：

10.1063/1.5111621

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The Raman modes of alpha-quartz-type boron phosphate were found to be extremely stable in frequency over a large temperature range from 300-1000 K. In order to determine the origin of this behavior, the material was also studied at high pressure up to 6 GPa. Upon compression, a classical behavior was observed with mode Gruneisen parameters ranging from -0.08(2) to 3.0(1). The present results indicate that the high temperature behavior in this material is an example of an unusual compensation effect between phonon-phonon interactions and implicit contributions due to thermal expansion. Phonon stability is of utmost importance for materials properties that are dependent on it such as dielectric and piezoelectric properties, for example. Boron phosphate belongs to the important class of alpha-quartz-type piezoelectric materials for which temperature stability is of primordial importance for resonator and sensor applications.

引用

页数：5

共 6 条

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JOURNAL OF PHYSICAL CHEMISTRY C, 2016, 120 (47): : 26645 - 26651
[3] CRYSTAL-STRUCTURES OF THE LOW-TEMPERATURE QUARTZ-TYPE PHASES OF SIO2 AND GEO2 AT ELEVATED PRESSURE
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[4] Novel features of the α-β phase transition in quartz-type FePO4 as evidenced by x-ray diffraction and lattice dynamics
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JOURNAL OF PHYSICS-CONDENSED MATTER, 2010, 22 (22)
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Zhang, Lifang
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PHYSICAL REVIEW B, 2017, 96 (04)

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