Low-temperature specifie heat of Zr2(Co1-xNix) under magnetic fields

Katushiko Nishimura; Yuzuru Tsurugiya; Shixun Cao; Seiichi Rengakuji; Katsunori Mori

doi:10.1016/S0921-4526(99)02457-6

Low-temperature specifie heat of Zr₂(Co_1-xNi_x) under magnetic fields

Katushiko Nishimura, Yuzuru Tsurugiya, Shixun Cao, Seiichi Rengakuji, Katsunori Mori^*

^*Corresponding author for this work

Materials Design and Engineering

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

We measured the low-temperature specific heat in pseudo-binary alloyed compounds Zr₂(Co_1-xNi_x) (0 ≤ x ≤ 0.3) in the temperature range from 1.5 to 8 K under various magnetic fields. In this system, T_c. has one maximum (≈6 K) near x = 0.1. Corresponding to the maximum of T_c, the electronic specific heat coefficient γ and energy gap 2Δ(0)/k_B T_c are maximum near x= 0.1, that is, higher density of states N(0) at the Fermi level near x= 0.1 results in higher T_c. Furthermore, the upper critical field, H_c2(0), is maximum near x=0.1.

Original language	English
Pages (from-to)	1111-1112
Number of pages	2
Journal	Physica B: Condensed Matter
Volume	284-288
Issue number	PART I
DOIs	https://doi.org/10.1016/S0921-4526(99)02457-6
State	Published - 2000

Keywords

Specific heat
Zr(CoNi)

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

Access to Document

10.1016/S0921-4526(99)02457-6

Cite this

@article{f6af6b3cf7b44567a9e5343d2e68afc5,

title = "Low-temperature specifie heat of Zr2(Co1-xNix) under magnetic fields",

abstract = "We measured the low-temperature specific heat in pseudo-binary alloyed compounds Zr2(Co1-xNix) (0 ≤ x ≤ 0.3) in the temperature range from 1.5 to 8 K under various magnetic fields. In this system, Tc. has one maximum (≈6 K) near x = 0.1. Corresponding to the maximum of Tc, the electronic specific heat coefficient γ and energy gap 2Δ(0)/kB Tc are maximum near x= 0.1, that is, higher density of states N(0) at the Fermi level near x= 0.1 results in higher Tc. Furthermore, the upper critical field, Hc2(0), is maximum near x=0.1.",

keywords = "Specific heat, Zr(CoNi)",

author = "Katushiko Nishimura and Yuzuru Tsurugiya and Shixun Cao and Seiichi Rengakuji and Katsunori Mori",

year = "2000",

doi = "10.1016/S0921-4526(99)02457-6",

language = "英語",

volume = "284-288",

pages = "1111--1112",

journal = "Physica B: Condensed Matter",

issn = "0921-4526",

publisher = "Elsevier B.V.",

number = "PART I",

}

TY - JOUR

T1 - Low-temperature specifie heat of Zr2(Co1-xNix) under magnetic fields

AU - Nishimura, Katushiko

AU - Tsurugiya, Yuzuru

AU - Cao, Shixun

AU - Rengakuji, Seiichi

AU - Mori, Katsunori

PY - 2000

Y1 - 2000

N2 - We measured the low-temperature specific heat in pseudo-binary alloyed compounds Zr2(Co1-xNix) (0 ≤ x ≤ 0.3) in the temperature range from 1.5 to 8 K under various magnetic fields. In this system, Tc. has one maximum (≈6 K) near x = 0.1. Corresponding to the maximum of Tc, the electronic specific heat coefficient γ and energy gap 2Δ(0)/kB Tc are maximum near x= 0.1, that is, higher density of states N(0) at the Fermi level near x= 0.1 results in higher Tc. Furthermore, the upper critical field, Hc2(0), is maximum near x=0.1.

AB - We measured the low-temperature specific heat in pseudo-binary alloyed compounds Zr2(Co1-xNix) (0 ≤ x ≤ 0.3) in the temperature range from 1.5 to 8 K under various magnetic fields. In this system, Tc. has one maximum (≈6 K) near x = 0.1. Corresponding to the maximum of Tc, the electronic specific heat coefficient γ and energy gap 2Δ(0)/kB Tc are maximum near x= 0.1, that is, higher density of states N(0) at the Fermi level near x= 0.1 results in higher Tc. Furthermore, the upper critical field, Hc2(0), is maximum near x=0.1.

KW - Specific heat

KW - Zr(CoNi)

UR - http://www.scopus.com/inward/record.url?scp=0033717131&partnerID=8YFLogxK

U2 - 10.1016/S0921-4526(99)02457-6

DO - 10.1016/S0921-4526(99)02457-6

M3 - 学術論文

AN - SCOPUS:0033717131

SN - 0921-4526

VL - 284-288

SP - 1111

EP - 1112

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

IS - PART I

ER -