THERMAL DISORDERING OF THE PT(110)-(1X2) SURFACE

被引：21

作者：

KRZYZOWSKI, MA ^{[1
]}

ZEPPENFELD, P ^{[1
]}

ROMAINCZYK, C ^{[1
]}

DAVID, R ^{[1
]}

COMSA, G ^{[1
]}

KUHNKE, KE ^{[1
]}

KERN, K ^{[1
]}

机构：

[1] ECOLE POLYTECH FED LAUSANNE, PH ECUBLENS, INST PHYS EXPTL, CH-1015 LAUSANNE, SWITZERLAND

来源：

PHYSICAL REVIEW B | 1994年 / 50卷 / 24期

关键词：

D O I：

10.1103/PhysRevB.50.18505

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The temperature dependence of the structure of the clean, (1×2) reconstructed Pt(110) surface has been investigated by thermal-energy helium-atom scattering and low-energy electron diffraction. Two distinct phase transitions were observed: At about 1025 K a two-dimensional Isinglike transition from the well-ordered (1×2) missing-row reconstructed surface to a disordered but flat surface takes place, followed at about 1095 K by a Kosterlitz-Thouless transition into a rough phase. The measurements provide strong evidence for the phase in the intermediate-temperature regime being a flat phase like the disordered flat phase recently proposed by den Nijs. The precise microscopic structure of this intermediate phase, however, could not be quantified in detail. © 1994 The American Physical Society.

引用

页码：18505 / 18516

页数：12

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