ON THE PHOTOPYROELECTRIC DETECTION OF PHASE-TRANSITIONS - APPLICATION TO FERROELECTRIC MATERIALS

被引：14

作者：

DADARLAT, D ^{[1
]}

CHIRTOC, M ^{[1
]}

BICANIC, D ^{[1
]}

机构：

[1] AGR UNIV WAGENINGEN,DEPT PHYS & METEOROL,PHOTOACOUST LAB,6701 AP WAGENINGEN,NETHERLANDS

来源：

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 1990年 / 50卷 / 04期

关键词：

64; 78;

D O I：

10.1007/BF00323590

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A new version of the photopyroelectric (PPE) method that uses optically opaque and thermally thick sample and transducer is proposed as a sensitive technique for phase transition detection. The primary value of this technique is that the exponential dependence of the PPE voltage on the specimen specific heat in the thermally thick limit, allows a convenient amplification of the effects of the phase transition on the signal. Large anomalies of the PPE voltage in the critical region were obtained for two ferroelectric crystals (seignette salt and TGS). © 1990 Springer-Verlag.

引用

页码：357 / 360

页数：4

共 27 条

[1] REFLECTION MODE PHOTOPYROELECTRIC SPECTROSCOPY OF STRONGLY ABSORBING LIQUIDS IN THE NEAR-INFRARED [J].

CHIRTOC, M ;

DADARLAT, D ;

CHIRTOC, I ;

BICANIC, D .

SPECTROSCOPY LETTERS, 1988, 21 (06) :413-421

[2] OPERATION THEORY OF PYROELECTRIC DETECTORS .1. A NEW PHYSICAL MODEL AND THE RESULTING OPERATION MODES [J].

CHIRTOC, M ;

CANDEA, RM ;

MERCEA, V .

FERROELECTRICS, 1984, 56 (3-4) :283-291

[3]

CHIRTOC M, 1989, 6TH INT TOP M PHOT P

[4]

CHIRTOC M, IN PRESS PHYS REV B

[5] PHOTOTHERMAL SPECTROSCOPY USING A PYROELECTRIC THIN-FILM DETECTOR [J].

COUFAL, H .

APPLIED PHYSICS LETTERS, 1984, 44 (01) :59-61

[6] DIRECT PYROELECTRIC DETECTION OF OPTICAL-ABSORPTION IN NON-TRANSPARENT MATERIALS [J].

DADARLAT, D ;

CHIRTOC, M ;

CANDEA, RM ;

BRATU, I .

INFRARED PHYSICS, 1984, 24 (05) :469-471

[7]

DADARLAT D, IN PRESS J PHYS CHEM

[8]

DADARLAT D, 1989, ST CERC FIZ, V41, P859

[9]

DELCERRO J, 1987, J PHYS E SCI INSTRUM, V20, P612, DOI 10.1088/0022-3735/20/6/006

[10]

GHINZONI CC, 1985, PHYS REV B, V32, P8392

← 1 2 3 →