Low-temperature nuclear magnetic resonance studies of EuB6

被引：13

作者：

Gavilano, JL ^{[1
]}

Ambrosini, B

Vonlanthen, P

Ott, HR

Young, DP

Fisk, Z

机构：

[1] ETH Honggerberg, Festkorperphys Lab, CH-8093 Zurich, Switzerland

[2] Florida State Univ, Natl Magnet Field Lab, Tallahassee, FL 32306 USA

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 81卷 / 25期

关键词：

D O I：

10.1103/PhysRevLett.81.5648

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the results of Eu-153 and B-11 nuclear magnetic resonance (NMR) studies of EuB6 at temperatures above 0.04 K and in magnetic fields between 0 and 7 T. We have observed a surprising evolution of the Eu-153 NMR spectrum at very low temperatures, which we interpret as evidence for a complex electronic ground state of EuB6, involving the coexistence of two magnetically very similar, but electronically inequivalent, phases. The low temperature B-11 NMR spectra reveal two inequivalent boron sites with internal fields of -0.02 and -0.35 T.

引用

页码：5648 / 5651

页数：4

共 16 条

[1]

AMBROSINI B, UNPUB

[2] TRANSVERSE NUCLEAR-RELAXATION IN REAL FERROMAGNETS [J].

BARAK, J ;

SIEGELST.I ;

GABAI, A ;

KAPLAN, N .

PHYSICAL REVIEW B, 1973, 8 (11) :5282-5290

[3] Low-temperature anomalies and ferromagnetism of EuB6 [J].

Degiorgi, L ;

Felder, E ;

Ott, HR ;

Sarrao, JL ;

Fisk, Z .

PHYSICAL REVIEW LETTERS, 1997, 79 (25) :5134-5137

[4] Spin-gap proximity effect mechanism of high-temperature superconductivity [J].

Emery, VJ ;

Kivelson, SA ;

Zachar, O .

PHYSICAL REVIEW B, 1997, 56 (10) :6120-6147

[5] STRUCTURE AND PHYSICAL FEATURES OF THE RARE-EARTH BORIDES [J].

ETOURNEAU, J ;

HAGENMULLER, P .

PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES, 1985, 52 (03) :589-610

[6] MAGNETIC, TRANSPORT, AND THERMAL-PROPERTIES OF FERROMAGNETIC EUB6 [J].

FISK, Z ;

JOHNSTON, DC ;

CORNUT, B ;

MOLNAR, SV ;

OSEROFF, S ;

CALVO, R .

JOURNAL OF APPLIED PHYSICS, 1979, 50 (03) :1911-1913

[7] CHARGE TRANSPORT AND PRESSURE-DEPENDENCE OF TC OF SINGLE-CRYSTAL, FERROMAGNETIC EUB6. [J].

GUY, CN ;

MOLNAR, SV ;

ETOURNEAU, J ;

FISK, Z .

SOLID STATE COMMUNICATIONS, 1980, 33 (10) :1055-1058

[8] STUDY OF CARBON-SUBSTITUTED EUB6 [J].

KASAYA, M ;

TARASCON, JM ;

ETOURNEAU, J ;

HAGENMULLER, P .

MATERIALS RESEARCH BULLETIN, 1978, 13 (08) :751-756

[9] POLARON FERROMAGNETISM OF EUB6 [J].

MATTHIAS, BT .

PHYSICS LETTERS A, 1968, A 27 (08) :511-&

[10]

MULLER KA, 1993, PHASE SEPARATION CUP

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