The monoclinic/orthorhombic phase transition in Ba2Cu(HCOO)6:: An optical and X-ray powder diffraction study

被引：2

作者：

Polla, G ^{[1
]}

Vega, D ^{[1
]}

Leyva, AG ^{[1
]}

de Perazzo, PK ^{[1
]}

Lanza, H ^{[1
]}

de Benyacar, MAR ^{[1
]}

机构：

[1] Comis Nacl Energia Atom, Dept Fis, TANDAR, RA-1429 Buenos Aires, DF, Argentina

来源：

PHASE TRANSITIONS | 2000年 / 72卷 / 01期

关键词：

Ba2Cu(HCOO)(6); phase transition; domain structure;

D O I：

10.1080/01411590008224547

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

alpha-Ba2Cu(HCOO)(6) grown at room temperature crystallizes in space group P2(1). On heating a reversible, hysteretic, equitranslational, first-order phase transition at about 60-90 degrees C takes place. Here we discuss the influence of thermal treatments on the occurrence, coexistence and stability ranges of the two observed phases, as studied by several techniques (optical microscopy, differential scanning calorimetry and X-ray diffraction). On cooling a single set of domain walls parallel to (001) have been observed. Taking into account experimental results acid the crystal pseudosymmetry of the alpha phase we propose that the high-temperature beta phase crystallizes in space group Pbnm.

引用

页码：15 / 24

页数：10

共 50 条

[21] High pressure single crystal x-ray and neutron powder diffraction study of the ferroelectric-paraelectric phase transition in PbTiO3 [J].

Al-Zein, A. ;

Bouvier, P. ;

Kania, A. ;

Levelut, C. ;

Hehlen, B. ;

Nassif, V. ;

Hansen, T. C. ;

Fertey, P. ;

Haines, J. ;

Rouquette, J. .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2015, 48 (50)

[22] Phase Transition in the Crystal of Tetramethoxysilane Studied by In Situ X-ray Diffraction Analysis [J].

Smol'yakov, A. F. ;

Nelyubina, Yu. V. .

RUSSIAN JOURNAL OF COORDINATION CHEMISTRY, 2021, 47 (01) :26-31

[23] Phase Transition in the Crystal of Tetramethoxysilane Studied by In Situ X-ray Diffraction Analysis [J].

A. F. Smol’yakov ;

Yu. V. Nelyubina .

Russian Journal of Coordination Chemistry, 2021, 47 :26-31

[24] In-situ Raman Spectra and X-ray Diffraction Study on Pressure-induced Phase Transition in Columbite ZnNb2O6 [J].

Zhou Jing ;

Li Liang ;

Huang Feng-Xian ;

Shen Hong-Zhi ;

Yang Hang ;

Zhou Qiang ;

Wang Wen-Quan ;

Xu Da-Peng .

CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE, 2013, 34 (10) :2383-2388

[25] X-ray and neutron powder diffraction studies of phase transitions in LiCsSo4 [J].

Mestres, L ;

Martinez-Sarrion, ML ;

Bakkali, A ;

Simkin, VG ;

Smirnov, LS ;

Balagurov, AM .

EUROPEAN POWDER DIFFRACTION, PTS 1 AND 2, 2000, 321-3 :918-923

[26] High pressure X-ray powder diffraction study of BaWO4 [J].

Gomis, Oscar ;

Lacomba-Perales, Raul ;

Errandonea, Daniel ;

Meng, Yue .

ACTA CRYSTALLOGRAPHICA A-FOUNDATION AND ADVANCES, 2011, 67 :C499-C500

[27] High Pressure X-ray Diffraction Study on Phase Transitions of CuInTe2 [J].

Diaz, M. C. ;

de Chalbaud, L. M. ;

Martin, J. M. ;

Tinoco, T. ;

Sagredo, V. .

JAPANESE JOURNAL OF APPLIED PHYSICS, 2000, 39 (01) :141-142

[28] High-temperature synchrotron X-ray powder diffraction study of the orthorhombic-tetragonal phase transition in La0.63(Ti0.92,Nb0.08)O3 [J].

Ali, R ;

Yashima, M ;

Tanaka, M ;

Yoshioka, H ;

Mori, T ;

Sasaki, S .

JOURNAL OF SOLID STATE CHEMISTRY, 2002, 164 (01) :51-59

[29] Structure and phase transition in BaThO3: A combined neutron and synchrotron X-ray diffraction study [J].

Murphy, Gabriel L. ;

Kennedy, Brendan J. ;

Zhang, Zhaoming ;

Avdeev, Maxim ;

Brand, Helen E. A. ;

Kegler, Philip ;

Alekseev, Evgeny V. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2017, 727 :1044-1049

[30] SYNCHROTRON X-RAY POWDER DIFFRACTION STUDY ON SUCCESSIVE PHASE TRANSITIONS IN AZnPO4(A:Rb, Cs) [J].

Yamashita, I. ;

Kawaji, H. ;

Atake, T. ;

Kuroiwa, Y. ;

Sawada, A. .

ACTA CRYSTALLOGRAPHICA A-FOUNDATION AND ADVANCES, 2002, 58 :C149-C149

← 1 2 3 4 5 →