Anomalous compression in UAl3 - An experimental and computational study

被引：12

作者：

Shekar, NVC ^{[1
]}

Sahu, PC ^{[1
]}

Rajagopalan, M ^{[1
]}

Yousuf, M ^{[1
]}

Rajan, KG ^{[1
]}

机构：

[1] ANNA UNIV, DEPT PHYS, MADRAS 600025, TAMIL NADU, INDIA

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1997年 / 9卷 / 27期

关键词：

D O I：

10.1088/0953-8984/9/27/016

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

High-pressure x-ray diffraction experiments were performed on UAl3 up to 23 GPa. Anomalous compressibility behaviour of the system was observed in the pressure range 7-14 GPa. The experiments are compared with similar observations in UGa3, UIn3, UGe3 and USn3. Band structure calculations have been performed to look for a possible explanation of this behaviour through the concept of electron transfer from the f to the d orbitals.

引用

页码：5867 / 5874

页数：8

共 23 条

[1] EXPLICIT, 1ST-PRINCIPLES TIGHT-BINDING THEORY [J].

ANDERSEN, OK ;

JEPSEN, O .

PHYSICAL REVIEW LETTERS, 1984, 53 (27) :2571-2574

[2]

ARKO AJ, 1985, HDB PHYSICS CHEM ACT, V2, P175

[3] COMPARATIVE ASPECTS OF THE HIGH-PRESSURE BEHAVIOR OF LANTHANIDE AND ACTINIDE COMPOUNDS [J].

BENEDICT, U .

JOURNAL OF ALLOYS AND COMPOUNDS, 1995, 223 (02) :216-225

[4]

BENEDICT U, 1993, HANDB PHYSI, V17, P245

[5] FINITE STRAIN ISOTHERM AND VELOCITIES FOR SINGLE-CRYSTAL AND POLYCRYSTALLINE NACL AT HIGH-PRESSURES AND 300-DEGREE-K [J].

BIRCH, F .

JOURNAL OF GEOPHYSICAL RESEARCH, 1978, 83 (NB3) :1257-1268

[6]

Hill H H., 1970, Plutonium 1970 and Other Actinides: Proceedings Part 1 (Nuclear Metallurgy)

[7] Physics of solids under strong compression [J].

Holzapfel, WB .

REPORTS ON PROGRESS IN PHYSICS, 1996, 59 (01) :29-90

[8] PRESSURE-VOLUME RELATIONSHIP AND PRESSURE-INDUCED ELECTRONIC AND STRUCTURAL TRANSFORMATIONS IN EU AND YB MONOCHALCOGENIDES [J].

JAYARAMAN, A ;

SINGH, AK ;

CHATTERJEE, A ;

DEVI, SU .

PHYSICAL REVIEW B, 1974, 9 (06) :2513-2520

[9] ELECTRONIC STRUCTURE OF HCP YTTERBIUM [J].

JEPSEN, O ;

ANDERSEN, OK .

SOLID STATE COMMUNICATIONS, 1971, 9 (20) :1763-+

[10] ELECTRONIC-STRUCTURE AND STRUCTURAL PHASE-STABILITY IN BAS, BASE, AND BATE [J].

KALPANA, G ;

PALANIVEL, B ;

RAJAGOPALAN, M .

PHYSICAL REVIEW B, 1994, 50 (17) :12318-12325

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