Theoretical stability, thin film synthesis and transport properties of the Mon+1GaCn MAX phase

被引：27

作者：

Meshkian, Rahele ^{[1
]}

Ingason, Arni Sigurdur ^{[1
]}

Dahlqvist, Martin ^{[1
]}

Petruhins, Andrejs ^{[1
]}

Arnalds, Unnar B. ^{[2
]}

Magnus, Fridrik ^{[3
]}

Lu, Jun ^{[1
]}

Rosen, Johanna ^{[1
]}

机构：

[1] Linkoping Univ, Dept Phys Chem & Biol IFM, S-58183 Linkoping, Sweden

[2] Univ Iceland, Inst Sci, IS-107 Reykjavik, Iceland

[3] Uppsala Univ, Dept Phys & Astron, S-516 Uppsala, Sweden

来源：

PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS | 2015年 / 9卷 / 03期

基金：

欧洲研究理事会; 瑞典研究理事会;

关键词：

superconducting MAX phases; Mo2GaC; ab-initio calculations; magnetron sputtering; thin films; INITIO MOLECULAR-DYNAMICS; SUPERCONDUCTIVITY; TRANSITION; TEMPERATURES;

D O I：

10.1002/pssr.201409543

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The phase stability of Mon +1GaCn has been investigated using ab-initio calculations. The results indicate stability for the Mo2GaC phase only, with a formation enthalpy of 0.4 meV per atom. Subsequent thin film synthesis of Mo2GaC was performed through magnetron sputtering from elemental targets onto Al2O3 [0001], 6H-SiC [0001] and MgO [111] substrates within the temperature range of 500 degrees C and 750 degrees C. High structural quality films were obtained for synthesis on MgO [111] substrates at 590 degrees C. Evaluation of transport properties showed a superconducting behavior with a critical temperature of approximately 7 K, reducing upon the application of an external magnetic field. The results point towards the first superconducting MAX phase in thin film form. (C) 2015 WILEY-VCH Verlag GmbH &Co. KGaA, Weinheim)

引用

页码：197 / 201

页数：5

共 29 条

[1]

Barsoum MW, 2013, MAX PHASES: PROPERTIES OF MACHINABLE TERNARY CARBIDES AND NITRIDES, P187

[2] Elastic and Mechanical Properties of the MAX Phases [J].

Barsoum, Michel W. ;

Radovic, Miladin .

ANNUAL REVIEW OF MATERIALS RESEARCH, VOL 41, 2011, 41 :195-227

[3] The MN+1AXN phases:: A new class of solids;: Thermodynamically stable nanolaminates [J].

Barsoum, MW .

PROGRESS IN SOLID STATE CHEMISTRY, 2000, 28 (1-4) :201-281

[4]

Barsoum MW, 2001, AM SCI, V89, P334, DOI 10.1511/2001.4.334

[5] PROJECTOR AUGMENTED-WAVE METHOD [J].

BLOCHL, PE .

PHYSICAL REVIEW B, 1994, 50 (24) :17953-17979

[6] Superconductivity in the Nb2SnC compound [J].

Bortolozo, A. D. ;

Sant'Anna, O. H. ;

da Luz, M. S. ;

dos Santos, C. A. M. ;

Pereira, A. S. ;

Trentin, K. S. ;

Machado, A. J. S. .

SOLID STATE COMMUNICATIONS, 2006, 139 (02) :57-59

[7] Superconductivity at 7.3 K in Ti2InN [J].

Bortolozo, A. D. ;

Serrano, G. ;

Serquis, A. ;

Rodrigues, D., Jr. ;

dos Santos, C. A. M. ;

Fisk, Z. ;

Machado, A. J. S. .

SOLID STATE COMMUNICATIONS, 2010, 150 (29-30) :1364-1366

[8] Superconductivity in Nb2InC [J].

Bortolozo, A. D. ;

Fisk, Z. ;

Sant'Anna, O. H. ;

dos Santos, C. A. M. ;

Machado, A. J. S. .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2009, 469 (7-8) :256-258

[9] Stability trends of MAX phases from first principles [J].

Dahlqvist, M. ;

Alling, B. ;

Rosen, J. .

PHYSICAL REVIEW B, 2010, 81 (22)

[10] Phase stability of Ti2AlC upon oxygen incorporation: A first-principles investigation [J].

Dahlqvist, Martin ;

Alling, Bjorn ;

Abrikosov, Igor A. ;

Rosen, Johanna .

PHYSICAL REVIEW B, 2010, 81 (02)

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