In Situ Observation of the Humidity Controlled Polymorphic Phase Transformation in Glycine Microcrystals / Isakov Dmitry,Petukhova Daria,Vasilev Semen,Nuraeva Alla,Khazamov Timur,Seyedhosseini Ensieh,Zelenovskiy Pavel,Shur Vladimir Ya.,Kholkin Andrei L. // CRYSTAL GROWTH \& DESIGN. - 2014. - V. 14, l. 8. - P. 4138-4142.

ISSN/EISSN:

1528-7483 / 1528-7505

Type:

Article

Abstract:

Glycine is a model crystal exhibiting three polymorphic phases and important functional properties such as piezoelectricity and ferroelectricity. We report here in situ observation of the irreversible transformation of the solution-grown glycine crystals from a beta phase into a gamma phase. The slow transformation process was monitored by piezoresponse force microscopy at room temperature. The process of beta to gamma conversion was entirely controlled by the variation of relative humidity in the sample chamber. The results show that the rate of phase transformation in glycine is humidity dependent with a threshold of about 25\% RH. It is demonstrated that the phase boundary is highly rugged and the transformation front propagates inhomogeneously along the polar axis of the beta phase. The mechanism of the phase transformation is discussed.

Author keywords:

BETA-GLYCINE; GAMMA-GLYCINE; CRYSTALLIZATION; NANOSCALE; GROWTH; STATE; RULE

DOI:

10.1021/cg500747x

Web of Science ID:

ISI:000340080400052

Соавторы в МНС:

Другие поля

Поле	Значение
Month	AUG
Publisher	AMER CHEMICAL SOC
Address	1155 16TH ST, NW, WASHINGTON, DC 20036 USA
Language	English
EISSN	1528-7505
Keywords-Plus	BETA-GLYCINE; GAMMA-GLYCINE; CRYSTALLIZATION; NANOSCALE; GROWTH; STATE; RULE
Research-Areas	Chemistry; Crystallography; Materials Science
Web-of-Science-Categories	Chemistry, Multidisciplinary; Crystallography; Materials Science, Multidisciplinary
Author-Email	dmitry.isakov@materials.ox.ac.uk
ResearcherID-Numbers	Isakov, Dmitry Isakov/A-8110-2013 Zelenovskiy, Pavel/H-7583-2012 Kholkin, Andrei/G-5834-2010 Nuraeva, Alla/B-3356-2015 Zelenovskiy, Pavel/L-7480-2016 Vasilev, Semen/L-8334-2016 Shur, Vladimir/J-9078-2015
ORCID-Numbers	Isakov, Dmitry Isakov/0000-0002-3913-8096 Kholkin, Andrei/0000-0003-3432-7610 Nuraeva, Alla/0000-0002-1329-2474 Zelenovskiy, Pavel/0000-0003-3895-4785 Vasilev, Semen/0000-0002-3103-1438
Funding-Acknowledgement	European Commission {[}290158]; Russian Ministry of Education and Science {[}14.B37.21.1208]; Government of the Sverdlovsk region {[}13-02-96041-r-Ural-a]; RFBR {[}13-02-01391-a]; UrFU under the framework of Development Program of UrFU through the ``Young scientists UrFU{''} competition; FCT {[}Pest-C/CTM/LA0011/2013]
Funding-Text	The work is supported by the European Commission within FP7 Marie Curie Initial Training Network Nanomotion (Grant Agreement No. 290158), by the Russian Ministry of Education and Science (Grant No. 14.B37.21.1208), by the Government of the Sverdlovsk region (Grant No. 13-02-96041-r-Ural-a), by RFBR (Grant No. 13-02-01391-a) and by UrFU under the framework of Development Program of UrFU through the ``Young scientists UrFU{''} competition. The work in CICECO is partly supported by the FCT Grant Pest-C/CTM/LA0011/2013. The equipment of the Ural Center for Shared Use ``Modern Nanotechnology{''
Number-of-Cited-References	31
Usage-Count-Last-180-days	5
Usage-Count-Since-2013	29
Journal-ISO	Cryst. Growth Des.
Doc-Delivery-Number	AM7WW