SPECIFIC-HEAT, MAGNETIZATION AND RESISTIVITY MEASUREMENTS ON HOBA2CU4O8

被引：14

作者：

BERNASCONI, A

SCHILLING, A

GUO, JD

OTT, HR

机构：

[1] Laboratorium für Festkörperphysik, ETHZ

来源：

PHYSICA C | 1990年 / 166卷 / 5-6期

关键词：

17;

D O I：

10.1016/0921-4534(90)90033-B

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Measurements on single-phase polycrystalline samples of HoBa2Cu4O8 demonstrate a qualitative similarity to the corresponding 1:2:3 compound with respect to specific heat Cp(T), magnetization M(H) and electrical resistivity ρ(T). The Cp (T) data below 25 K suggest a slightly different energy-level scheme of the splitted Hund's-rule ground-state multiplet of the Ho3+ ion and a spontaneous increase of the splitting between the ground state and the first-excited state below 5 K. A specific-heat anomaly at Tc is clearly discernible. © 1990.

引用

页码：393 / 398

页数：6

共 17 条

[1]

BERKLEY DD, 1988, APPL PHYS LETT, V53, P7082

[2]

BERNASCONI A, IN PRESS

[3] STRUCTURAL AND DYNAMIC PROPERTIES OF THE MAGNETIC ORDER IN THE 90-K SUPERCONDUCTOR HOBA2CU3O7 [J].

BIRRER, P ;

GYGAX, FN ;

HITTI, B ;

LIPPELT, E ;

SCHENCK, A ;

WEBER, M ;

BARTH, S ;

HULLIGER, F ;

OTT, HR .

PHYSICAL REVIEW B, 1989, 39 (16) :11449-11456

[4] PREPARATION OF YBA2CU3O7-DELTA BY CITRATE SYNTHESIS AND PYROLYSIS [J].

BLANK, DHA ;

KRUIDHOF, H ;

FLOKSTRA, J .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1988, 21 (01) :226-227

[5] MAGNETIC AND SUPERCONDUCTING PROPERTIES OF RBA2CU3OX COMPOUNDS [J].

BROWN, SE ;

THOMPSON, JD ;

WILLIS, JO ;

AIKIN, RM ;

ZIRNGIEBL, E ;

SMITH, JL ;

FISK, Z ;

SCHWARZ, RB .

PHYSICAL REVIEW B, 1987, 36 (04) :2298-2300

[6] A STRAIGHTFORWARD SYNTHETIC ROUTE TO THE BULK FORM OF THE ERBA2CU4O8, HOBA2CU4O8 SUPERCONDUCTORS AT ONE ATMOSPHERE OXYGEN-PRESSURE [J].

CAVA, RJ ;

KRAJEWSKI, JJ ;

PECK, WF ;

BATLOGG, B ;

RUPP, LW .

PHYSICA C, 1989, 159 (04) :372-374

[7]

CAVA RJ, 1989, NATURE, V338, P338

[8] NEUTRON SPECTROSCOPIC DETERMINATION OF THE CRYSTALLINE ELECTRIC-FIELD IN HOBA2CU3O7-DELTA [J].

FURRER, A ;

BRUESCH, P ;

UNTERNAHRER, P .

PHYSICAL REVIEW B, 1988, 38 (07) :4616-4623

[9] CRYSTAL-STRUCTURE OF DYBA2CU4O8 - A NEW 77-K BULK SUPERCONDUCTOR [J].

HAZEN, RM ;

FINGER, LW ;

MORRIS, DE .

APPLIED PHYSICS LETTERS, 1989, 54 (11) :1057-1059

[10] SUPERCONDUCTING AND MAGNETIC-PROPERTIES OF BA2LANTHANIDESCU3O7-X COMPOUNDS [J].

HULLIGER, F ;

OTT, HR .

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1987, 67 (03) :291-298

← 1 2 →