139La NQR relaxation in a superconductor La3Ir 2Ge2

Yutaka Kishimoto; Yu Kawasaki; Takashi Ohno; Dexin Li; Yoshiya Homma; Yoshinobu Shiokawa

doi:10.1143/JPSJ.73.3389

¹³⁹La NQR relaxation in a superconductor La₃Ir ₂Ge₂

Yutaka Kishimoto, Yu Kawasaki, Takashi Ohno, Dexin Li, Yoshiya Homma, Yoshinobu Shiokawa

IMR - Materials Processing and Characterization Division

Tokushima University

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

1 Citation (Scopus)

Abstract

To investigate the electronic state of La₃Ir₂Ge ₂, we have carried out ¹³⁹La-NQR measurement. In the normal state, the spin-lattice relaxation rate 1/T₁ is proportional to the temperature T. 1/T₁ shows a small coherence peak just below the superconducting transition temperature T_c = 4.7 K and decreases exponentially well below T_c. La₃Ir₂Ge ₂ is found to be a BCS superconductor with an energy gap 2Δ(0) = 3.52k_BT_c.

Original language	English
Pages (from-to)	3389-3393
Number of pages	5
Journal	Journal of the Physical Society of Japan
Volume	73
Issue number	12
DOIs	https://doi.org/10.1143/JPSJ.73.3389
Publication status	Published - 2004 Dec

Keywords

LaIrGe
NQR
Spectrum
Spin-lattice relaxation
Superconductor

Access to Document

10.1143/JPSJ.73.3389

Cite this

@article{2e35c56f17bd4c6a9d4a3fae3ad7ebfa,

title = "139La NQR relaxation in a superconductor La3Ir 2Ge2",

abstract = "To investigate the electronic state of La3Ir2Ge 2, we have carried out 139La-NQR measurement. In the normal state, the spin-lattice relaxation rate 1/T1 is proportional to the temperature T. 1/T1 shows a small coherence peak just below the superconducting transition temperature Tc = 4.7 K and decreases exponentially well below Tc. La3Ir2Ge 2 is found to be a BCS superconductor with an energy gap 2Δ(0) = 3.52kBTc.",

keywords = "LaIrGe, NQR, Spectrum, Spin-lattice relaxation, Superconductor",

author = "Yutaka Kishimoto and Yu Kawasaki and Takashi Ohno and Dexin Li and Yoshiya Homma and Yoshinobu Shiokawa",

year = "2004",

month = dec,

doi = "10.1143/JPSJ.73.3389",

language = "English",

volume = "73",

pages = "3389--3393",

journal = "Journal of the Physical Society of Japan",

issn = "0031-9015",

publisher = "The Physical Society of Japan",

number = "12",

}

TY - JOUR

T1 - 139La NQR relaxation in a superconductor La3Ir 2Ge2

AU - Kishimoto, Yutaka

AU - Kawasaki, Yu

AU - Ohno, Takashi

AU - Li, Dexin

AU - Homma, Yoshiya

AU - Shiokawa, Yoshinobu

PY - 2004/12

Y1 - 2004/12

N2 - To investigate the electronic state of La3Ir2Ge 2, we have carried out 139La-NQR measurement. In the normal state, the spin-lattice relaxation rate 1/T1 is proportional to the temperature T. 1/T1 shows a small coherence peak just below the superconducting transition temperature Tc = 4.7 K and decreases exponentially well below Tc. La3Ir2Ge 2 is found to be a BCS superconductor with an energy gap 2Δ(0) = 3.52kBTc.

AB - To investigate the electronic state of La3Ir2Ge 2, we have carried out 139La-NQR measurement. In the normal state, the spin-lattice relaxation rate 1/T1 is proportional to the temperature T. 1/T1 shows a small coherence peak just below the superconducting transition temperature Tc = 4.7 K and decreases exponentially well below Tc. La3Ir2Ge 2 is found to be a BCS superconductor with an energy gap 2Δ(0) = 3.52kBTc.

KW - LaIrGe

KW - NQR

KW - Spectrum

KW - Spin-lattice relaxation

KW - Superconductor

UR - http://www.scopus.com/inward/record.url?scp=20444362655&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=20444362655&partnerID=8YFLogxK

U2 - 10.1143/JPSJ.73.3389

DO - 10.1143/JPSJ.73.3389

M3 - Article

AN - SCOPUS:20444362655

SN - 0031-9015

VL - 73

SP - 3389

EP - 3393

JO - Journal of the Physical Society of Japan

JF - Journal of the Physical Society of Japan

IS - 12

ER -

¹³⁹La NQR relaxation in a superconductor La₃Ir ₂Ge₂

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this