Correlation among long-range ordered states revealed by pressure versus temperature phase diagram in URu2Si2

被引：25

作者：

Uemura, S ^{[1
]}

Motoyama, G

Oda, Y

Nishioka, T

Sato, NK

机构：

[1] Nagoya Univ, Grad Sch Sci, Dept Phys, Nagoya, Aichi 4648602, Japan

[2] Kochi Univ, Fac Sci, Dept Mat Sci, Kochi 7808520, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2005年 / 74卷 / 10期

关键词：

URu2Si2; superconductivity; magnetism; heavy fermion; actinides;

D O I：

10.1143/JPSJ.74.2667

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a pressure-temperature phase diagram of URu2Si2 consisting of four states; i.e., a superconducting state, a hidden ordered (HO) state, a large-moment antiferromagnetically (LMAF) ordered state induced under pressure, and a ferromagnetic state that is presumably due to crystal imperfections. Our major observation is that the Superconductivity does not coexist with the LMAF state. Provided that the ferromagnetism is associated with a tiny-moment antiferromagnetically ordered state, we argue that the hidden order parameter has a different symmetry front that of the anti ferromagnetic states, which implies that there is no critical end point in a first-order phase line separating HO from LMAF in the phase diagram.

引用

页码：2667 / 2670

页数：4

共 24 条

[11] Interplay between magnetism and superconductivity in URu2Si2 studied by neutron scattering experiments [J].

Honma, T ;

Haga, Y ;

Yamamoto, E ;

Metoki, N ;

Koike, Y ;

Ohkuni, H ;

Suzuki, N ;

Onuki, Y .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1999, 68 (02) :338-341

[12]

KIS A, 2004, CONDMAT0404099

[13]

KNETSCH EA, 1993, THESIS LEIDEN U

[14] PARTIALLY GAPPED FERMI-SURFACE IN THE HEAVY-ELECTRON SUPERCONDUCTOR URU2SI2 [J].

MAPLE, MB ;

CHEN, JW ;

DALICHAOUCH, Y ;

KOHARA, T ;

ROSSEL, C ;

TORIKACHVILI, MS ;

MCELFRESH, MW ;

THOMPSON, JD .

PHYSICAL REVIEW LETTERS, 1986, 56 (02) :185-188

[15] Spatially inhomogeneous development of antiferromagnetism in URu2Si2:: Evidence from 29Si NMR under pressure -: art. no. 087203 [J].

Matsuda, K ;

Kohori, Y ;

Kohara, T ;

Kuwahara, K ;

Amitsuka, H .

PHYSICAL REVIEW LETTERS, 2001, 87 (08) :87203-1

[16] EFFECT OF PRESSURE ON COMPETING ELECTRONIC CORRELATIONS IN THE HEAVY-ELECTRON SYSTEM URU2SI2 [J].

MCELFRESH, MW ;

THOMPSON, JD ;

WILLIS, JO ;

MAPLE, MB ;

KOHARA, T ;

TORIKACHVILI, MS .

PHYSICAL REVIEW B, 1987, 35 (01) :43-47

[17]

MINEEV VP, 2004, CONDMAT0412055

[18] Phase transition between hidden and antiferromagnetic order in URu2Si2 -: art. no. 166402 [J].

Motoyama, G ;

Nishioka, T ;

Sato, NK .

PHYSICAL REVIEW LETTERS, 2003, 90 (16) :4

[19] Possible competitive coexistence of ferromagnetism and superconductivity in UGe2 -: art. no. 020510 [J].

Motoyama, G ;

Nakamura, S ;

Kadoya, H ;

Nishioka, T ;

Sato, NK .

PHYSICAL REVIEW B, 2002, 65 (02) :1-4

[20] SUPERCONDUCTING AND MAGNETIC TRANSITIONS IN THE HEAVY-FERMION SYSTEM URU2SI2 [J].

PALSTRA, TTM ;

MENOVSKY, AA ;

VANDENBERG, J ;

DIRKMAAT, AJ ;

KES, PH ;

NIEUWENHUYS, GJ ;

MYDOSH, JA .

PHYSICAL REVIEW LETTERS, 1985, 55 (24) :2727-2730

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