Magnetization, Resistivity and Specific Heat of Hexagonal R2Ni12P7 with Filled-Cr12P7 Structure

被引：2

作者：

Nakano, Tomohito ^{[1
]}

Tsuchiya, Katsuhiko ^{[2
]}

Ohashi, Atsumi ^{[1
]}

Nashimoto, Takashi ^{[2
]}

Ono, Hiroki ^{[2
]}

Takeda, Naoya ^{[1
]}

Shirakawa, Naoki ^{[3
]}

机构：

[1] Niigata Univ, Fac Engn, Niigata 9502181, Japan

[2] Niigata Univ, Grad Sch Sci & Technol, Niigata 9502181, Japan

[3] AIST, Flexible Elect Res Ctr, Tsukuba, Ibaraki 3058562, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2012年 / 81卷 / 07期

关键词：

cage structure; R2Ni12P7; magnetization; resistivity; specific heat; SKUTTERUDITE STRUCTURE; FILLED SKUTTERUDITES; BEHAVIOR; PRESSURE; SUPERCONDUCTIVITY; TEMPERATURE; FERROMAGNET; TRANSITION; HO2NI12P7; PR;

D O I：

10.1143/JPSJ.81.074601

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We prepared single-crystal samples of hexagonal R2Ni12P7 (R = Sm, Gd-Lu) using a Sn-flux method, and measured their magnetization, resistivity, and specific heat. The antiferromagnetic order in Gd2Ni12P7 and Ho2Ni12P7, the ferromagnetic order in Dy2Ni12P7 and Er2Ni12P7, and the ferromagnetic-like order in Sm2Ni12P7, Tb2Ni12P7, and Tm2Ni12P7 were evidenced by the results of the measurements. In contrast, we found that Yb2Ni12P7 is in a heavy fermion state at low-temperature region. Hump-type anomalies in specific heat were observed below the magnetic transition temperature in R2Ni12P7 (R = Gd, Tb, and Dy), indicating the Zeeman splitting of the J-multiplet of the R3+ ion in the ordered state.

引用

页数：8

共 27 条

[1] Superconductivity and heavy fermion behavior in PrOs4Sb12 -: art. no. 100506 [J].