Influence of Al doping on the critical fields in magnesium didoride single crystals

T. Klein; C. Marcenat; L. Lyard; J. Marcus; B. Kang; H. J. Kim; H. S. Lee; S. I. Lee

doi:10.1063/1.2354850

Influence of Al doping on the critical fields in magnesium didoride single crystals

T. Klein
, C. Marcenat
, L. Lyard
, J. Marcus
, B. Kang
, H. J. Kim
, H. S. Lee
, S. I. Lee

École Polytechnique

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

The lower (H_c1) and upper (H_c2) critical fields of Al_xMg_1-xB₂ single crystals have been deduced from specific heat and magnetization measurements (with x = 0, 0.1 and 0.2). We show that H_c1 and H_c2 are both decreasing with increasing doping content. The corresponding anisotropy parameter Γ_Hc2 (0) value then also decreases from ∼ 5 in pure MgB₂ samples down to ∼ 1.6 for x = 0.2 whereas Γ_Hc1 (0) remains on the order of 1 in all measured samples.

Original language	English
Title of host publication	LOW TEMPERATURE PHYSICS
Subtitle of host publication	24th International Conference on Low Temperature Physics - LT24
Pages	595-596
Number of pages	2
DOIs	https://doi.org/10.1063/1.2354850
Publication status	Published - 1 Dec 2006
Event	LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24 - Orlando, FL, United States Duration: 10 Aug 2006 → 17 Oct 2006

Publication series

Name	AIP Conference Proceedings
Volume	850
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Conference

Conference	LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24
Country/Territory	United States
City	Orlando, FL
Period	10/08/06 → 17/10/06

Keywords

Mixed state
Superconductivity

Access to Document

10.1063/1.2354850

Cite this

@inproceedings{c0bc8e9291f941aab145f73cc23aec92,

title = "Influence of Al doping on the critical fields in magnesium didoride single crystals",

abstract = "The lower (Hc1) and upper (Hc2) critical fields of AlxMg1-xB2 single crystals have been deduced from specific heat and magnetization measurements (with x = 0, 0.1 and 0.2). We show that Hc1 and Hc2 are both decreasing with increasing doping content. The corresponding anisotropy parameter ΓHc2 (0) value then also decreases from ∼ 5 in pure MgB2 samples down to ∼ 1.6 for x = 0.2 whereas ΓHc1 (0) remains on the order of 1 in all measured samples.",

keywords = "Mixed state, Superconductivity",

author = "T. Klein and C. Marcenat and L. Lyard and J. Marcus and B. Kang and Kim, \{H. J.\} and Lee, \{H. S.\} and Lee, \{S. I.\}",

year = "2006",

month = dec,

day = "1",

doi = "10.1063/1.2354850",

language = "English",

isbn = "0735403473",

series = "AIP Conference Proceedings",

pages = "595--596",

booktitle = "LOW TEMPERATURE PHYSICS",

note = "LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24 ; Conference date: 10-08-2006 Through 17-10-2006",

}

Klein, T, Marcenat, C, Lyard, L, Marcus, J, Kang, B, Kim, HJ, Lee, HS & Lee, SI 2006, Influence of Al doping on the critical fields in magnesium didoride single crystals. in LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24. AIP Conference Proceedings, vol. 850, pp. 595-596, LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24, Orlando, FL, United States, 10/08/06. https://doi.org/10.1063/1.2354850

Influence of Al doping on the critical fields in magnesium didoride single crystals. / Klein, T.; Marcenat, C.; Lyard, L. et al.
LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24. 2006. p. 595-596 (AIP Conference Proceedings; Vol. 850).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Influence of Al doping on the critical fields in magnesium didoride single crystals

AU - Klein, T.

AU - Marcenat, C.

AU - Lyard, L.

AU - Marcus, J.

AU - Kang, B.

AU - Kim, H. J.

AU - Lee, H. S.

AU - Lee, S. I.

PY - 2006/12/1

Y1 - 2006/12/1

N2 - The lower (Hc1) and upper (Hc2) critical fields of AlxMg1-xB2 single crystals have been deduced from specific heat and magnetization measurements (with x = 0, 0.1 and 0.2). We show that Hc1 and Hc2 are both decreasing with increasing doping content. The corresponding anisotropy parameter ΓHc2 (0) value then also decreases from ∼ 5 in pure MgB2 samples down to ∼ 1.6 for x = 0.2 whereas ΓHc1 (0) remains on the order of 1 in all measured samples.

AB - The lower (Hc1) and upper (Hc2) critical fields of AlxMg1-xB2 single crystals have been deduced from specific heat and magnetization measurements (with x = 0, 0.1 and 0.2). We show that Hc1 and Hc2 are both decreasing with increasing doping content. The corresponding anisotropy parameter ΓHc2 (0) value then also decreases from ∼ 5 in pure MgB2 samples down to ∼ 1.6 for x = 0.2 whereas ΓHc1 (0) remains on the order of 1 in all measured samples.

KW - Mixed state

KW - Superconductivity

UR - https://www.scopus.com/pages/publications/33947611616

U2 - 10.1063/1.2354850

DO - 10.1063/1.2354850

M3 - Conference contribution

AN - SCOPUS:33947611616

SN - 0735403473

SN - 9780735403475

T3 - AIP Conference Proceedings

SP - 595

EP - 596

BT - LOW TEMPERATURE PHYSICS

T2 - LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24

Y2 - 10 August 2006 through 17 October 2006

ER -

Influence of Al doping on the critical fields in magnesium didoride single crystals

Abstract

Publication series

Conference

Keywords

Access to Document

Other files and links

Fingerprint

Cite this