Magnetic ground state of Pr0.89LaCe0.11CuO4+α-δ with varied oxygen depletion probed by muon spin relaxation

被引：15

作者：

Kadono, R ^{[1
]}

Ohishi, K

Koda, A

Higemoto, W

Kojima, KM

Kuroshima, S

Fujita, M

Yamada, K

机构：

[1] KEK, High Energy Accelerator Res Org, Inst Mat Struct Sci, Tsukuba, Ibaraki 3050801, Japan

[2] Univ Tokyo, Grad Sch Frontier Sci, Tokyo 1138656, Japan

[3] Kyoto Univ, Inst Chem Res, Kyoto 6100011, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2003年 / 72卷 / 11期

关键词：

superconductivity; crystal electric field; cuprates; mu SR;

D O I：

10.1143/JPSJ.72.2955

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The magnetic ground state of an electron-doped cuprate superconductor, Pr1-xLaCexCuO4+alpha-delta (x = 0.11, alpha similar or equal to 0.04), has been studied by means of muon spin rotation/relaxation (muSR) over a wide variety of oxygen depletion, 0.03 less than or equal to delta less than or equal to 0.12. The appearance of a weak random magnetism over the entire crystal volume has been revealed by a slow exponential relaxation. The absence of delta-dependence for random magnetism and a multiplet pattern of the muon Knight shift at higher fields strongly suggest that the random moments are associated with excited Pr3+ ions under a crystal electric field.

引用

页码：2955 / 2958

页数：4

共 17 条

[1] SUPERCONDUCTIVITY IN THE ND-SR-CE-CU-O SYSTEM [J].

AKIMITSU, J ;

SUZUKI, S ;

WATANABE, M ;

SAWA, H .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1988, 27 (10) :L1859-L1860

[2] CRYSTAL-FIELD EXCITATIONS IN ND2CUO4, PR2CUO4, AND RELATED N-TYPE SUPERCONDUCTORS [J].

BOOTHROYD, AT ;

DOYLE, SM ;

PAUL, DM ;

OSBORN, R .

PHYSICAL REVIEW B, 1992, 45 (17) :10075-10086

[3] Magnetic and superconducting phase diagram of electron-doped Pr1-xLaCexCuO4 -: art. no. 014514 [J].

Fujita, M ;

Kubo, T ;

Kuroshima, S ;

Uefuji, T ;

Kawashima, K ;

Yamada, K ;

Watanabe, I ;

Nagamine, K .

PHYSICAL REVIEW B, 2003, 67 (01)

[4] Thermoelectric power of electron-doped superconductor, Pr1-xCexLaCuO4+δ (0≤x≤0.2) [J].

Isawa, K ;

Nagano, M ;

Fujita, M ;

Yamada, K .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2002, 378 :142-146

[5] Raman study of crystal-field excitations in Pr2CuO4 [J].

Jandl, S ;

Strach, T ;

Ruf, T ;

Cardona, M ;

Nekvasil, V ;

Iliev, M ;

Zhigunov, DI ;

Barilo, SN ;

Shiryaev, SV .

PHYSICAL REVIEW B, 1997, 56 (09) :5049-5052

[6] SUPERCONDUCTIVITY AND ELECTRICAL-RESISTIVITY IN THE T'-PHASE PR2-YLAY-XCEXCUO4-DELTA [J].

KOIKE, Y ;

KAKIMOTO, A ;

MOCHIDA, M ;

SATO, H ;

NOJI, T ;

KATO, M ;

SAITO, Y .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1992, 31 (9A) :2721-2722

[7] Heat treatment effects on the superconductivity and crystal structure of Nd1.85Ce0.15CuO4 studied using a single crystal [J].

Kurahashi, K ;

Matsushita, H ;

Fujita, M ;

Yamada, K .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2002, 71 (03) :910-915

[8]

KUROHIMA S, IN PRESS PHYSICA C

[9] RARE-EARTH ENERGY-LEVELS IN ND2CUO4, PR2CUO4, AND THE ELECTRON SUPERCONDUCTOR PR1.85CE0.15CUO4 [J].

LOONG, CK ;

SODERHOLM, L .

PHYSICAL REVIEW B, 1993, 48 (18) :14001-14004

[10] Magnetic field penetration depth in single crystal La1.85Sr0.15CuO4 and Nd1.85Ce0.15CuO4 [J].

Luke, GM ;

Fudamoto, Y ;

Kojima, K ;

Larkin, M ;

Merrin, J ;

Nachumi, B ;

Uemura, YJ ;

Sonier, JE ;

Ito, T ;

Oka, K ;

deAndrade, M ;

Maple, MB ;

Uchida, S .

PHYSICA C, 1997, 282 :1465-1466

← 1 2 →