Thermophysical properties of iridium at finite temperature

doi:10.1088/1674-1056/25/11/116401

Abstract

The bulk properties of materials in an extreme environment such as high temperature and high pressure can be understood by studying anharmonic effects due to the vibration of lattice ions and thermally excited electrons. In this spirit, in the present paper, anharmonic effects are studied by using the recently proposed mean-field potential (MFP) approach and Mermin functional which arise due to the vibration of lattice ions and thermally excited electrons, respectively. The MFP experienced by a wanderer atom in the presence of surrounding atoms is constructed in terms of cold energy using the local form of the pseudopotential. We have calculated the temperature variation of several thermophysical properties in an extreme environment up to melting temperature. The results of our calculations are in excellent agreement with the experimental findings as well as the theoretical results obtained by using first principle methods. We conclude that presently used conjunction scheme (MFP+pseudopotential) is simple computationally, transparent physically, and accurate in the sense that the results generated are comparable and sometimes better than the results obtained by first principle methods. Local pseudopotential used is transferable to extreme environment without adjusting its parameters.

Keywords: iridium mean-field potential anharmonic effects thermophysical properties

Received: 15 June 2016
Revised: 30 September 2016
Accepted manuscript online:

PACS:	64.30.Ef	(Equations of state of pure metals and alloys)
	65.40.Ba	(Heat capacity)
	65.40.De	(Thermal expansion; thermomechanical effects)

Fund:

Project supported by the Department of Science and Technology-Fund for Improvement of Science and Technology Infrastructure Project (DST-FIST) (Level 1) of Department of Sciences and Technology (DST), New Delhi (Grant No. SR/FST/PST-001/2006).

Corresponding Authors: Priyank Kumar
E-mail: priyankkumar2007@yahoo.co.in

Cite this article:

Priyank Kumar, N K Bhatt, P R Vyas, V B Gohel Thermophysical properties of iridium at finite temperature 2016 Chin. Phys. B 25 116401

[1]	Katsnelson M I, Naumov I I, Trefilov A V, Khlopkin M N and Khromov K Y U 1997 Philos. Mag. B 75389
[2]	Katsnelson M I, Maksyutov A F and Trefilov A V 2002 Phys. Lett. A 29550
[3]	Park J, Deok B Y and Hong S 2015 Curr. Appl. Phys. 15885
[4]	Kontsevoi O Y, Gornostyrev Y N and Freeman A J 2005 JOM 5743
[5]	Ferah G, Colakoglu K, Ciftci Y O, Ozgen S and Kazanc S 2007 Central Eur. J. Phys. 5207
[6]	Sahara R, Mizuseki H, Ohno K and Kawazoe Y 2005 Mater. Trans. 461127
[7]	Singh N 1999 Pramana J. Phys. 52511
[8]	Ivanov A S, Katsnelson M I, Mikhin A G, Osetskii Y N, Rumyantsev A Y, Trefilov A V, Shramanaev Y F and Yakovenkova L T 1994 Philos. Mag. B 691183
[9]	Greenberg B A, Katsnelson M I, Koreshkov V G, Osetkii Y N, Peschanskikh G V, Trefilov A V, Shamanaev Y F and Yakovenkova L I 1990 Phys. Status Solidi B 158441
[10]	MacDonald R A and MacDonald W M 1981 Phys. Rev. B 241715
[11]	Ciftci Y O, Colakoglu K, Ozgen S and Kazanc S 2007 J. Phys.:Conden. Matter 19326204
[12]	Wang Y and Li L 2000 Phys. Rev. B 62196
[13]	Wang Y 2000 Phys. Rev. B 61 R11863(R)
[14]	Wang Y and Sun Y F 2001 Chin. Phys. Lett. 18864
[15]	Wang Y, Liu Z K, Chen L Q, Burakovsky L, Preston D L, Luo W, Johansson B and Ahuja R 2005 Phys. Rev. B 71054110
[16]	Wang Y, Liu Z K and Chen L Q 2006 J. Appl. Phys. 100023533
[17]	Bhatt N K, Vyas P R, Gohel V B and Jani A R 2007 Eur. Phys. J. B 5861
[18]	Bhatt N K, Vyas P R and Jani A R 2010 Philos. Mag. 901599
[19]	Bhatt N K, Vyas P R, Gohel V B and Jani A R 2008 IJPAP 46443
[20]	Vyas P R, Gohel V B, Bhatt N K and Jani A R 2007 IJPAP 4593
[21]	Bhatt N K, Vyas P R, Jani A R and Gohel V B 2005 J. Phys. Chem. Solids 66797
[22]	Bhatt N K, Jani A R, Vyas P R and Gohel V B 2005 Physica B 357259
[23]	Krasko G L and Gurskii Z A 1969 ZhETF Pis. Red. 9596
[24]	Mermin N D 1965 Phys. Rev. 137 A1441
[25]	Hubbard J 1958 Proc. Roy. Soc. A 243336
[26]	Sham L J 1965 Proc. Roy. Soc. A 28333
[27]	Osman S M and Mujibur R S M 1995 Mod. Phys. Lett. B 9553
[28]	Rosengren A, Ebbsjo I and Johansson B 1975 Phys. Rev. B 121337
[29]	Moriarty J A 1972 Phys. Rev. B 64445
[30]	Wax J F, Albaki R and Bretonnet J L 2000 Phys. Rev. B 6214818
[31]	Kittel C 1996 Introduction to Solid State Physics (New York:Wiley) 850
[32]	https://dept.astro.lsa.umich.edu/cowley/ionen.htm
[33]	Ahmed S, Zafar M, Shakil M and Choudhary M A 2015 Condens. Matter Phys. 18236011
[34]	Touloukian Y S, Kirby R K, Taylor R E and Desai P D 1975 Thermophysical Properties of Matter:Thermal Expansion, Metallic Elements and Alloys (New York) 12153
[35]	Arblaster J W 2010 Platinum Metals Rev. 5493
[36]	Caldwell F R 1962 Thermocouple Materials (National Bureau of Standards Monograph 40 Washington 25 DC) pp. 12-13
[37]	Halvorson J J 1971 The Electrical Resistivity and Thermal Expansion of Iridium at High Temperatures, A thesis submitted to the Graduate Faculty in partial fulfillment of the requirements for the degree of Master of science in Aerospace and Mechanical Engineering (Montana State University, Bozeman, Montana) p. 31
[38]	Katsnelson M I, Sigalas M, Trefilov A V and Khromov K Y 1997 Philos. Mag. B 75407
[39]	Nemoshkalenko V V, Milman V Y, Zhalko-Titarenko A V, Antonov V N and Shitikov Y L 1988 Pis'ma Zh. Eksp Teor. Fiz. 47245
[40]	Robie R A, Hemingway B S and Fisher J R 1978 Thermodynamic Properties of Minerals and Related Substances at 298.15 K and 1 Bar (105 Pascals) Pressure and at Higher Temperatures (US Geological Survey Bulletin 1452) (Washington:United States Government Printing Office) p. 65
[41]	Marsh S P 1980 LASL Shock Hugoniot Data (Berkeley:University of California Press)

[1]	Structure, stability, catalytic activity, and polarizabilities of small iridium clusters Francisco E Jorge, José R da Costa Venâncio. Chin. Phys. B, 2018, 27(6): 063102.
[2]	Performance improvement of InGaN/GaN multiple quantum well visible-light photodiodes by optimizing TEGa flow Bin Li(黎斌), Shan-Jin Huang(黄善津), Hai-Long Wang(王海龙), Hua-Long Wu(吴华龙), Zhi-Sheng Wu(吴志盛), Gang Wang(王钢), Hao Jiang(江灏). Chin. Phys. B, 2017, 26(8): 087307.

No Suggested Reading articles found!

Viewed

Full text

Abstract

Cited

Metrics
Related Articles

Thermophysical properties of iridium at finite temperature

Cite this article:

Online attention