We report on thermal conductivity and specific heat measurements for eight UCu4+xAl8−x compounds (0 ≤ x ≤ 2.0) as a function of temperature and magnetic field. For this series of compounds,previous magnetic and transport studies indicated a tran...
http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
https://www.riss.kr/link?id=A104319862
F. Nasreen (University of Nevada) ; M. S. Torikachvili (San Diego State University) ; K. Kothapalli (University of Nevada) ; Y. Kohama (University of Tokyo, Kashiwa-city) ; V. S. Zapf (Los Alamos National Laboratory) ; H. Nakotte (New Mexico State University)
2013
English
KCI등재,SCI,SCIE,SCOPUS
학술저널
1567-1571(5쪽)
0
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
We report on thermal conductivity and specific heat measurements for eight UCu4+xAl8−x compounds (0 ≤ x ≤ 2.0) as a function of temperature and magnetic field. For this series of compounds,previous magnetic and transport studies indicated a tran...
We report on thermal conductivity and specific heat measurements for eight UCu4+xAl8−x compounds (0 ≤ x ≤ 2.0) as a function of temperature and magnetic field. For this series of compounds,previous magnetic and transport studies indicated a transition from magnetic to a non-magnetic heavy fermion state near xcr ≈ 1.15. This paper presents supplementary specific heat and thermal conductivity studies. The ratio of the specific heat over temperature C/T data on the non magnetic compound with xcr ≈ 1.15 show logarithmic dependence with T, a hallmark of non-Fermi liquid (NFL) behavior due to the proximity of a quantum critical point. Compounds with higher Cu content (x > xcr) exhibit unusual temperature scaling in the specific heat possibly due to an increase in disorder between Cu and Al. Thermal conductivity data show stark contrast in the behaviors between the magnetic (x = 0.5) and non-magnetic compound (x = 1.75). Our results confirm that a simple free-electron picture is inadequate for the description of the low-temperature thermal conductivity properties in non-magnetic UCu4+xAl8−x compounds.
참고문헌 (Reference)
1 C. L. Seaman, 67 : 2882-, 1991
2 B. Andraka, 47 : 3208-, 1993
3 E. Miranda, 8 : 9871-, 1996
4 F. Nasreen, 406 : 2061-, 2011
5 C. Geibel, 163 : 194-, 1990
6 H. Pfau, 484 : 493-, 2012
7 M. S. Torikachvili, 226-230 : 42-, 2001
8 M. Sera, 54 : R5207-, 1996
9 M. Hiroi, 66 : 1595-, 1997
10 E. S. R. Gopal, "Specific Heats at Low Temperatures" Plenum Press 102-, 1966
1 C. L. Seaman, 67 : 2882-, 1991
2 B. Andraka, 47 : 3208-, 1993
3 E. Miranda, 8 : 9871-, 1996
4 F. Nasreen, 406 : 2061-, 2011
5 C. Geibel, 163 : 194-, 1990
6 H. Pfau, 484 : 493-, 2012
7 M. S. Torikachvili, 226-230 : 42-, 2001
8 M. Sera, 54 : R5207-, 1996
9 M. Hiroi, 66 : 1595-, 1997
10 E. S. R. Gopal, "Specific Heats at Low Temperatures" Plenum Press 102-, 1966
11 O.V. Lounasmaa, "Hyperfine Interactions" Academic Press 467-, 1967
Structural and Magnetic Properties, and Electronic Structures of Fe-Mn-Ga Alloys
Low Field Magnetization Reversal Behavior in GaMnAs Films
Transport Properties of Ho1−xLuxB12 Solid Solutions
학술지 이력
연월일 | 이력구분 | 이력상세 | 등재구분 |
---|---|---|---|
2023 | 평가예정 | 해외DB학술지평가 신청대상 (해외등재 학술지 평가) | |
2020-01-01 | 평가 | 등재학술지 유지 (해외등재 학술지 평가) | |
2011-01-01 | 평가 | 등재학술지 유지 (등재유지) | |
2009-01-01 | 평가 | 등재학술지 유지 (등재유지) | |
2007-01-01 | 평가 | SCI 등재 (등재유지) | |
2005-01-01 | 평가 | 등재학술지 유지 (등재유지) | |
2002-07-01 | 평가 | 등재학술지 선정 (등재후보2차) | |
2000-01-01 | 평가 | 등재후보학술지 선정 (신규평가) |
학술지 인용정보
기준연도 | WOS-KCI 통합IF(2년) | KCIF(2년) | KCIF(3년) |
---|---|---|---|
2016 | 0.47 | 0.15 | 0.31 |
KCIF(4년) | KCIF(5년) | 중심성지수(3년) | 즉시성지수 |
0.26 | 0.2 | 0.26 | 0.03 |