Two-dimensional intrinsic and extrinsic ferromagnetic behavior of layered La1.2Sr1.8Mn2O7 single crystals

被引：74

作者：

Potter, CD

Swiatek, M

Bader, SD

Argyriou, DN

Mitchell, JF

Miller, DJ

Hinks, DG

Jorgensen, JD

机构：

[1] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA

[2] Argonne Natl Lab, Sci & Technol Ctr Supercond, Argonne, IL 60439 USA

来源：

PHYSICAL REVIEW B | 1998年 / 57卷 / 01期

关键词：

D O I：

10.1103/PhysRevB.57.72

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The low-field magnetization M and susceptibility chi are reported for the two-layered Ruddleson-Popper phase SrO(La1-xSrxMnO3)(2) for x=0.4 (denoted La1.2Sr1.8Mn2O7) with an in-plane magnetic easy axis. As T approaches the Curie temperature (T-C=116 K) on cooling, where the metal-insulator transition occurs in zero field, chi diverges as H-1/delta', with delta=21+/-5. Also, near an extrinsic Curie transition attributed to similar to 0.1% fraction of intergrowths at T*=2.47 T-C, M scales as (1-T/T)(beta), with beta=0.25+/-0.02. These results can be understood within the context of two-dimensional XY models, and provide some perspective of the layered manganites.

引用

收藏

页码：72 / 75

页数：4

相关论文

共 17 条

[1] Sign reversal of the Mn-O bond compressibility in La1.2Sr1.8Mn2O7 below T-C: Exchange striction in the ferromagnetic state [J].

Argyriou, DN ;

Mitchell, JF ;

Goodenough, JB ;

Chmaissem, O ;

Short, S ;

Jorgensen, JD .

PHYSICAL REVIEW LETTERS, 1997, 78 (08) :1568-1571

[2] EXPERIMENTAL CONFIRMATION OF UNIVERSALITY FOR A PHASE-TRANSITION IN 2 DIMENSIONS [J].

BACK, CH ;

WURSCH, C ;

VATERLAUS, A ;

RAMSPERGER, U ;

MAIER, U ;

PESCIA, D .

NATURE, 1995, 378 (6557) :597-600

[3] MAGNETIZATION AND UNIVERSAL SUBCRITICAL BEHAVIOR IN 2-DIMENSIONAL XY MAGNETS [J].

BRAMWELL, ST ;

HOLDSWORTH, PCW .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1993, 5 (04) :L53-L59

[4] TRANSITION TEMPERATURES OF WEAKLY ANISOTROPIC LAYER-TYPE MAGNETS - DEPENDENCE ON ANISOTROPY [J].

DEJONGH, LJ ;

BLOEMBERGEN, P ;

COLPA, JHP .

PHYSICA, 1972, 58 (02) :305-+

[5] Spin-glass insulator state in (Tb-La)(2/3)Ca1/3MnO3 perovskite [J].

DeTeresa, JM ;

Ibarra, MR ;

Garcia, J ;

Blasco, J ;

Ritter, C ;

Algarabel, PA ;

Marquina, C ;

delMoral, A .

PHYSICAL REVIEW LETTERS, 1996, 76 (18) :3392-3395

[6] NEUTRON-SCATTERING STUDY OF THE 2-DIMENSIONAL SPIN S=1/2 SQUARE-LATTICE HEISENBERG-ANTIFERROMAGNET SR2CUO2CL2 [J].

GREVEN, M ;

BIRGENEAU, RJ ;

ENDOH, Y ;

KASTNER, MA ;

MATSUDA, M ;

SHIRANE, G .

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1995, 96 (04) :465-477

[7] Interplane tunneling magnetoresistance in a layered manganite crystal [J].

Kimura, T ;

Tomioka, Y ;

Kuwahara, H ;

Asamitsu, A ;

Tamura, M ;

Tokura, Y .

SCIENCE, 1996, 274 (5293) :1698-1701

[8] VERY LARGE MAGNETORESISTANCE IN PEROVSKITE-LIKE LA-CA-MN-O THIN-FILMS [J].

MCCORMACK, M ;

JIN, S ;

TIEFEL, TH ;

FLEMING, RM ;

PHILLIPS, JM ;

RAMESH, R .

APPLIED PHYSICS LETTERS, 1994, 64 (22) :3045-3047

[9] Structural phase diagram of La1-xSrxMnO3+delta: Relationship to magnetic and transport properties [J].

Mitchell, JF ;

Argyriou, DN ;

Potter, CD ;

Hinks, DG ;

Jorgensen, JD ;

Bader, SD .

PHYSICAL REVIEW B, 1996, 54 (09) :6172-6183

[10] Charge delocalization and structural response in layered La1.2Sr1.8Mn2O7: Enhanced distortion in the metallic regime [J].

Mitchell, JF ;

Argyriou, DN ;

Jorgensen, JD ;

Hinks, DG ;

Potter, CD ;

Bader, SD .

PHYSICAL REVIEW B, 1997, 55 (01) :63-66