STUDY OF THE 1-K PHASE-TRANSITION IN THE HEAVY-ELECTRON COMPOUND UCU5 BY MUON SPIN-RESONANCE AND NEUTRON-SCATTERING

被引：33

作者：

SCHENCK, A

BIRRER, P

GYGAX, FN

HITTI, B

LIPPELT, E

WEBER, M

BONI, P

FISCHER, P

OTT, HR

FISK, Z

机构：

[1] PAUL SCHERRER INST,CH-5232 VILLIGEN,SWITZERLAND

[2] ETH ZURICH,NEUTRONENSTREUUNG LAB,CH-5232 VILLIGEN,SWITZERLAND

[3] SWISS FED INST TECHNOL,FESTKORPERPHYS LAB,CH-8093 ZURICH,SWITZERLAND

[4] UNIV CALIF LOS ALAMOS SCI LAB,LOS ALAMOS,NM 87545

来源：

PHYSICAL REVIEW LETTERS | 1990年 / 65卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.65.2454

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The 1-K phase transition in UCu5, showing up in specific-heat data within the antiferromagnetic state below TN 15 K, was investigated. Neither the average internal fields seen by the + nor the magnetic and nuclear Bragg reflections in the neutron-diffraction data reflect the phase transition while the muon relaxation rates increase drastically below 1.2 K. These results are interpreted in terms of some additional small-moment magnetic order or spin-density-wave phenomenon, implying the coexistence of two rather independent electronic subsystems, one involving eeheavyee electrons, associated with the weak magnetism, and the other associated with the eeconventionalee antiferromagnetic order. © 1990 The American Physical Society.

引用

页码：2454 / 2457

页数：4

共 12 条

[1] MAGNETIC ORDER AND FLUCTUATIONS IN SUPERCONDUCTING UPT3 [J].

AEPPLI, G ;

BUCHER, E ;

BROHOLM, C ;

KJEMS, JK ;

BAUMANN, J ;

HUFNAGL, J .

PHYSICAL REVIEW LETTERS, 1988, 60 (07) :615-618

[2] MU+-SR-SPECTROSCOPY IN INTERMETALLIC COMPOUNDS CONTAINING HEAVY-ELECTRONS [J].

BARTH, S ;

OTT, HR ;

GYGAX, FN ;

HITTI, B ;

LIPPELT, E ;

SCHENCK, A .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1988, 76-7 :455-461

[3] A COMPARATIVE-STUDY OF THE MAGNETIC HEAVY-ELECTRON MATERIALS U2ZN17 AND UCU5 BY MU+SR [J].

BARTH, SR ;

OTT, HR ;

GYGAX, FN ;

SCHENCK, A ;

RICE, TM ;

FISK, Z .

HYPERFINE INTERACTIONS, 1986, 31 (1-4) :397-402

[4] MAGNETIC EXCITATIONS AND ORDERING IN THE HEAVY-ELECTRON SUPERCONDUCTOR URU2SI2 [J].

BROHOLM, C ;

KJEMS, JK ;

BUYERS, WJL ;

MATTHEWS, P ;

PALSTRA, TTM ;

MENOVSKY, AA ;

MYDOSH, JA .

PHYSICAL REVIEW LETTERS, 1987, 58 (14) :1467-1470

[5] MUON-SPIN RELAXATION STUDIES OF WEAK MAGNETIC CORRELATIONS IN U1-XTHXBE13 [J].

HEFFNER, RH ;

WILLIS, JO ;

SMITH, JL ;

BIRRER, P ;

BAINES, C ;

GYGAX, FN ;

HITTI, B ;

LIPPELT, E ;

OTT, HR ;

SCHENCK, A .

PHYSICAL REVIEW B, 1989, 40 (01) :806-809

[6] MUON SPIN ROTATION IN THE MAGNETIC AND SUPERCONDUCTING GROUND-STATES OF (U,TH)BE13 AND (U,TH)PT3 [J].

HEFFNER, RH ;

COOKE, DW ;

GIORGI, AL ;

HUTSON, RL ;

SCHILLACI, ME ;

REMPP, HD ;

SMITH, JL ;

WILLIS, JO ;

MACLAUGHLIN, DE ;

BOEKEMA, C ;

LICHTI, RL ;

OOSTENS, J ;

DENISON, AB .

PHYSICAL REVIEW B, 1989, 39 (16) :11345-11357

[7] MUON SPIN ROTATION AND MAGNETIC ORDER IN THE HEAVY-FERMION COMPOUND URU2SI2 [J].

MACLAUGHLIN, DE ;

COOKE, DW ;

HEFFNER, RH ;

HUTSON, RL ;

MCELFRESH, MW ;

SCHILLACI, ME ;

REMPP, HD ;

SMITH, JL ;

WILLIS, JO ;

ZIRNGIEBL, E ;

BOEKEMA, C ;

LICHTI, RL ;

OOSTENS, J .

PHYSICAL REVIEW B, 1988, 37 (07) :3153-3158

[8] THEORY OF DISCOMMENSURATIONS AND COMMENSURATE-INCOMMENSURATE CHARGE-DENSITY WAVE-PHASE TRANSITION [J].

MCMILLAN, WL .

PHYSICAL REVIEW B, 1976, 14 (04) :1496-1502

[9] MAGNETIC-STRUCTURE OF UCU5 [J].

MURASIK, A ;

LIGENZA, S ;

ZYGMUNT, A .

PHYSICA STATUS SOLIDI A-APPLIED RESEARCH, 1974, 23 (02) :K163-K165

[10] LOW-TEMPERATURE STATE OF UCU5 - FORMATION OF HEAVY ELECTRONS IN A MAGNETICALLY ORDERED MATERIAL [J].

OTT, HR ;

RUDIGIER, H ;

FELDER, E ;

FISK, Z ;

BATLOGG, B .

PHYSICAL REVIEW LETTERS, 1985, 55 (15) :1595-1598

← 1 2 →