Van Vleck paramagnetism of the thulium garnet Tm3Al5O12

被引：16

作者：

Awaka, J ^{[1
]}

Endoh, R ^{[1
]}

Nagata, S ^{[1
]}

机构：

[1] Muroran Inst Technol, Dept Mat Sci & Engn, Muroran, Hokkaido 0508585, Japan

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 2003年 / 64卷 / 12期

关键词：

oxides; magnetic properties; crystal fields;

D O I：

10.1016/S0022-3697(03)00280-4

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The magnetic susceptibility of the garnet-type single crystal Tm3Al5O12 exhibits the typical Van Vleck temperature independent paramagnetism below approximate to8 K. The temperature dependence of the susceptibility over the range 2.0-300 K has been analyzed on the assumption that the cubic crystal-electric-field dominates the energy level on H-3(6) (J = 6) ground multiplet for Tm3+ ion having 12-electrons in 4f shell. The ground state of the H-3(6) is nonmagnetic with Gamma(2) singlet, avoiding the Kramers doublet. The energy separation between Gamma(2) and the first excited state Gamma(5)((2)) triplet is evaluated to be 68.0 K. The whole energy 5 interval Delta between Gamma(2) and the highest state Gamma(1) in H-3(6) is estimated to be 339.5 K. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：2403 / 2408

页数：6

共 13 条

[1] REFINEMENT OF THE STRUCTURE OF A GROSSULARITE GARNET [J].

ABRAHAMS, SC ;

GELLER, S .

ACTA CRYSTALLOGRAPHICA, 1958, 11 (06) :437-441

[2]

AWAKA J, 2003, IN PRESS PHYS B

[3] EXCHANGE EFFECTS IN SPIN-LATTICE RELAXATION OF IMPURITIES IN THULIUM GARNETS [J].

BIERIG, RW ;

RIMAI, L .

JOURNAL OF APPLIED PHYSICS, 1965, 36 (3P2) :1199-&

[4] CRYSTAL CHEMISTRY OF GARNETS [J].

GELLER, S .

ZEITSCHRIFT FUR KRISTALLOGRAPHIE KRISTALLGEOMETRIE KRISTALLPHYSIK KRISTALLCHEMIE, 1967, 125 (1-6) :1-&

[5] ELECTRONIC RAMAN-SPECTROSCOPY AND MAGNETIC-SUSCEPTIBILITIES [J].

KONINGSTEIN, JA ;

KANEMAGU.CJ .

CANADIAN JOURNAL OF CHEMISTRY, 1974, 52 (20) :3445-3450

[6] RAISING OF ANGULAR MOMENTUM DEGENERACY OF F-ELECTRON TERMS BY CUBIC CRYSTAL FIELDS [J].

LEA, KR ;

LEASK, MJM ;

WOLF, WP .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1962, 23 (OCT) :1381-&

[7] ELECTRONIC EFFECTS IN FAR-INFRARED SPECTRA OF DY HO TM AND YB ALUMINIUM GARNETS [J].

MILWARD, RC .

PHYSICS LETTERS A, 1967, A 25 (01) :19-&

[8] Specific heat anomaly of the holmium garnet Ho3Al5O12 at low temperature [J].

Nagata, S ;

Sasaki, H ;

Suzuki, K ;

Kiuchi, J ;

Wada, N .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 2001, 62 (06) :1123-1130

[9] MAGNETIC-SUSCEPTIBILITY OF (TMXY1-X)3AL5O12 GARNET SINGLE-CRYSTALS [J].

PERLOV, DD ;

SOROKIN, AA ;

FEODOROV, VA ;

DODOKIN, AP .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1993, 123 (1-2) :187-190

[10] MAGNETIC BEHAVIOR OF THULIUM GARNETS IN A CUBIC FIELD [J].

SCHIEBER, MM ;

LIN, CC ;

VANVLECK, JH .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1966, 27 (6-7) :1041-&

← 1 2 →