Chemical pressure tuning of URu2Si2 via isoelectronic substitution of Ru with Fe

被引：33

作者：

Das, Pinaki ^{[1
]}

Kanchanavatee, N. ^{[2
,3
]}

Helton, J. S. ^{[4
,5
]}

Huang, K. ^{[3
,6
]}

Baumbach, R. E. ^{[1
,7
]}

Bauer, E. D. ^{[1
]}

White, B. D. ^{[2
,3
]}

Burnett, V. W. ^{[2
,3
]}

Maple, M. B. ^{[2
,3
,6
]}

Lynn, J. W. ^{[5
]}

Janoschek, M. ^{[1
]}

机构：

[1] Los Alamos Natl Lab, MPA CMMS, Los Alamos, NM 87545 USA

[2] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA

[3] Univ Calif San Diego, Ctr Adv Nanosci, La Jolla, CA 92093 USA

[4] US Naval Acad, Dept Phys, Annapolis, MD 21402 USA

[5] NIST, Ctr Neutron Res, Gaithersburg, MD 20899 USA

[6] Univ Calif San Diego, La Jolla, CA 92093 USA

[7] Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32310 USA

来源：

PHYSICAL REVIEW B | 2015年 / 91卷 / 08期

基金：

美国国家科学基金会;

关键词：

HIDDEN-ORDER TRANSITION; FERMI-SURFACE; MAGNETIC EXCITATIONS; SYSTEM; SUPERCONDUCTIVITY; TEMPERATURE; RESISTIVITY; ENTROPY; LATTICE; MOMENT;

D O I：

10.1103/PhysRevB.91.085122

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have used specific heat and neutron diffraction measurements on single crystals of URu2-xFexSi2 for Fe concentrations x <= 0.7 to establish that chemical substitution of Ru with Fe acts as "chemical pressure" P-ch as previously proposed by Kanchanavatee et al. [Phys. Rev. B 84, 245122 ( 2011)] based on bulk measurements on polycrystalline samples. Notably, neutron diffraction reveals a sharp increase of the uranium magnetic moment at x = 0.1, reminiscent of the behavior at the "hidden order" to large-moment-antiferromagnetic phase transition observed at a pressure Px approximate to 0.5-0.7 GP(a) in URu2Si2. Using the unit-cell volume determined from our measurements and an isothermal compressibility kappa(T) = 5.2 x 10(-3) GPa(-1) for URu2Si2, we determine the chemical pressure Pch in URu2-xFexSi2 as a function of x. The resulting temperature (T)-chemical pressure ( P-ch) phase diagram for URu2-xFexSi2 is in agreement with the established temperature (T)-external pressure (P) phase diagram of URu2Si2.

引用

页数：6

共 47 条

[31] Colloquium: Hidden order, superconductivity, and magnetism: The unsolved case of URu2Si2 [J].

Mydosh, J. A. ;

Oppeneer, P. M. .

REVIEWS OF MODERN PHYSICS, 2011, 83 (04)

[32] Parasitic Small-Moment Antiferromagnetism and Nonlinear Coupling of Hidden Order and Antiferromagnetism in URu2Si2 Observed by Larmor Diffraction [J].

Niklowitz, P. G. ;

Pfleiderer, C. ;

Keller, T. ;

Vojta, M. ;

Huang, Y. -K. ;

Mydosh, J. A. .

PHYSICAL REVIEW LETTERS, 2010, 104 (10)

[33] Interplay between fermi surface topology and ordering in URu2Si2 revealed through abrupt hall coefficient changes in strong magnetic fields [J].

Oh, Y. S. ;

Kim, Kee Hoon ;

Sharma, P. A. ;

Harrison, N. ;

Amitsuka, H. ;

Mydosh, J. A. .

PHYSICAL REVIEW LETTERS, 2007, 98 (01)

[34] Fermi surface properties and de Haas-van Alphen oscillation in both the normal and superconducting mixed states of URu2Si2 [J].

Ohkuni, H ;

Inada, Y ;

Tokiwa, Y ;

Sakurai, K ;

Settai, R ;

Honma, T ;

Haga, Y ;

Yamamoto, E ;

Onuki, Y ;

Yamagami, H ;

Takahashi, S ;

Yanagisawa, T .

PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES, 1999, 79 (07) :1045-1077

[35] ANISOTROPIC ELECTRICAL-RESISTIVITY OF THE MAGNETIC HEAVY-FERMION SUPERCONDUCTOR URU2SI2 [J].

PALSTRA, TTM ;

MENOVSKY, AA ;

MYDOSH, JA .

PHYSICAL REVIEW B, 1986, 33 (09) :6527-6530

[36] 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

[37] Hidden and antiferromagnetic order as a rank-5 superspin in URu2Si2 [J].

Rau, Jeffrey G. ;

Kee, Hae-Young .

PHYSICAL REVIEW B, 2012, 85 (24)

[38] Point-contact spectroscopy on URu2Si2 [J].

Rodrigo, JG ;

Guinea, F ;

Vieira, S ;

Aliev, FG .

PHYSICAL REVIEW B, 1997, 55 (21) :14318-14322

[39] Strict limit on in-plane ordered magnetic dipole moment in URu2Si2 [J].

Ross, K. A. ;

Harriger, L. ;

Yamani, Z. ;

Buyers, W. J. L. ;

Garrett, J. D. ;

Menovsky, A. A. ;

Mydosh, J. A. ;

Broholm, C. L. .

PHYSICAL REVIEW B, 2014, 89 (15)

[40] Fermi-surface instability at the 'hidden-order' transition of URu2Si2 [J].

Santander-Syro, Andres F. ;

Klein, Markus ;

Boariu, Florin L. ;

Nuber, Andreas ;

Lejay, Pascal ;

Reinert, Friedrich .

NATURE PHYSICS, 2009, 5 (09) :637-641

← 1 2 3 4 5 →