THE USE OF THE X-RAY ANOMALOUS TRANSMISSION EFFECT IN THE STRUCTURE INVESTIGATION OF HIGH-TEMPERATURE SUPERCONDUCTORS

被引：7

作者：

BDIKIN, IK

SHMYTKO, IM

SHEKHTMAN, VS

ABROSIMOV, NV

EMELCHENKO, GA

OSSIPYAN, YA

机构：

[1] Institute of Solid State Physics, Russian Academy of Sciences, 142432 Chernogolovka, Moscow district

来源：

PHYSICA C | 1992年 / 201卷 / 1-2期

关键词：

D O I：

10.1016/0921-4534(92)90105-L

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The effect of the anomalous transmission of X-rays (the Borrmann effect) was observed in high quality Nd2CuO4, (LaSr)2CuO4, EuBa2Cu3O7-x and YBa2Cu3O7-x single crystals. With the help of it we have shown that the EuBa2Cu3O7-x crystals grown in an alundum container are noncentrosymmetrical. They have the polarity axes along [100] and are divided into antiphase domains. The space group of such crystals is Pmm2. We also obtained the result of the existence of the X-ray anomalous transition effect in strongly distorted crystals. It shows that the theory of the Borrmann effect demands future development.

引用

页码：69 / 74

页数：6

共 9 条

[1]

ARISTOV VV, 1976, KRISTALLOGRAFIYA+, V21, P351

[2]

CHANG SL, 1984, MULTIPLE DIFFRACTION, P234

[3] GROWTH OF HIGH-TC SUPERCONDUCTOR SINGLE-CRYSTALS AND THE EFFECT OF THERMOBARIC TREATMENT IN OXYGEN ON CRITICAL-TEMPERATURES [J].

EMELCHENKO, GA ;

ABROSIMOV, NV ;

BAZHENOV, AV ;

MASALOV, VM ;

ZHOKHOV, AA ;

KONONOVICH, PA ;

LOGVENOV, GY ;

KHASANOV, SS .

MATERIALS LETTERS, 1990, 9 (2-3) :96-100

[4]

ISHUK VM, 1989, PISMA ESKP TEOR FIZ, V49, P341

[5]

KVARDAKOV VV, 1991, SUPERCONDUCTIVITY PH, V4, P1263

[6]

PINSKER ZG, 1974, DYNAMICAL SCATTERING, P392

[7] TWIN STRUCTURE AND STRUCTURE OF TWIN BOUNDARIES IN 1-2-3-O7-DELTA CRYSTALS [J].

SHMYTKO, IM ;

SHEKHTMAN, VS ;

OSSIPYAN, YA ;

AFONIKOVA, NS .

FERROELECTRICS, 1989, 97 :151-170

[8]

Tatarchenko V. A., 1989, International Journal of Modern Physics B, V3, P289, DOI 10.1142/S0217979289000221

[9] LARGE STATIC DIELECTRIC-CONSTANT IN THE HIGH-TEMPERATURE PHASE OF POLYCRYSTALLINE YBA2CU3OX [J].

TESTARDI, LR ;

MOULTON, WG ;

MATHIAS, H ;

NG, HK ;

REY, CM .

PHYSICAL REVIEW B, 1988, 37 (04) :2324-2325

← 1 →