MEASUREMENT OF THE SUPERCONDUCTING ENERGY GAP IN SINGLE CRYSTAL V//3Si.

Seizo Morita; Syozo Imai; Seiji Yamashita; Nobuo Mikoshiba; Naoki Toyota; Tetsuo Fukase; Takashi Nakanomyo

MEASUREMENT OF THE SUPERCONDUCTING ENERGY GAP IN SINGLE CRYSTAL V//3Si.

Seizo Morita, Syozo Imai, Seiji Yamashita, Nobuo Mikoshiba, Naoki Toyota, Tetsuo Fukase, Takashi Nakanomyo

SCI - Physics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

3 Citations (Scopus)

Abstract

We measured the energy gap of single crystal V//3Si using a bridge-type point-contact Josephson junction. From dc I-V curves, we obtained that the energy gap of Nb-V//3Si bridge-type junction was DELTA (Nb) plus DELTA (V//3Si) equals 3. 93meV for (100) and 4. 53meV for (111) crystal orientation of V//3Si, respectively. The values of the energy gap DELTA (V//3Si) and 2 DELTA (V//3Si)/kT//c(V//3Si) for (111) crystal orientation of V//3Si are quite large compared to the previous result obtained by Moore et al. The energy gap anisotropy, DELTA (111) greater than DELTA (100), is qualitatively opposite to the previous result obtained for Nb//3Sn.

Original language	English
Title of host publication	Unknown Host Publication Title
Publisher	North-Holland
Pages	601-602
Number of pages	2
Edition	pt 1
ISBN (Print)	0444869107
Publication status	Published - 1984 Dec 1

Publication series

Name
Number	pt 1

ASJC Scopus subject areas

Engineering(all)

Cite this

@inproceedings{e7c47481d1b54ff2ad081f7e5d8d53b5,

title = "MEASUREMENT OF THE SUPERCONDUCTING ENERGY GAP IN SINGLE CRYSTAL V//3Si.",

abstract = "We measured the energy gap of single crystal V//3Si using a bridge-type point-contact Josephson junction. From dc I-V curves, we obtained that the energy gap of Nb-V//3Si bridge-type junction was DELTA (Nb) plus DELTA (V//3Si) equals 3. 93meV for (100) and 4. 53meV for (111) crystal orientation of V//3Si, respectively. The values of the energy gap DELTA (V//3Si) and 2 DELTA (V//3Si)/kT//c(V//3Si) for (111) crystal orientation of V//3Si are quite large compared to the previous result obtained by Moore et al. The energy gap anisotropy, DELTA (111) greater than DELTA (100), is qualitatively opposite to the previous result obtained for Nb//3Sn.",

author = "Seizo Morita and Syozo Imai and Seiji Yamashita and Nobuo Mikoshiba and Naoki Toyota and Tetsuo Fukase and Takashi Nakanomyo",

year = "1984",

month = dec,

day = "1",

language = "English",

isbn = "0444869107",

publisher = "North-Holland",

number = "pt 1",

pages = "601--602",

booktitle = "Unknown Host Publication Title",

edition = "pt 1",

}

TY - GEN

T1 - MEASUREMENT OF THE SUPERCONDUCTING ENERGY GAP IN SINGLE CRYSTAL V//3Si.

AU - Morita, Seizo

AU - Imai, Syozo

AU - Yamashita, Seiji

AU - Mikoshiba, Nobuo

AU - Toyota, Naoki

AU - Fukase, Tetsuo

AU - Nakanomyo, Takashi

PY - 1984/12/1

Y1 - 1984/12/1

N2 - We measured the energy gap of single crystal V//3Si using a bridge-type point-contact Josephson junction. From dc I-V curves, we obtained that the energy gap of Nb-V//3Si bridge-type junction was DELTA (Nb) plus DELTA (V//3Si) equals 3. 93meV for (100) and 4. 53meV for (111) crystal orientation of V//3Si, respectively. The values of the energy gap DELTA (V//3Si) and 2 DELTA (V//3Si)/kT//c(V//3Si) for (111) crystal orientation of V//3Si are quite large compared to the previous result obtained by Moore et al. The energy gap anisotropy, DELTA (111) greater than DELTA (100), is qualitatively opposite to the previous result obtained for Nb//3Sn.

AB - We measured the energy gap of single crystal V//3Si using a bridge-type point-contact Josephson junction. From dc I-V curves, we obtained that the energy gap of Nb-V//3Si bridge-type junction was DELTA (Nb) plus DELTA (V//3Si) equals 3. 93meV for (100) and 4. 53meV for (111) crystal orientation of V//3Si, respectively. The values of the energy gap DELTA (V//3Si) and 2 DELTA (V//3Si)/kT//c(V//3Si) for (111) crystal orientation of V//3Si are quite large compared to the previous result obtained by Moore et al. The energy gap anisotropy, DELTA (111) greater than DELTA (100), is qualitatively opposite to the previous result obtained for Nb//3Sn.

UR - http://www.scopus.com/inward/record.url?scp=0021699257&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0021699257&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:0021699257

SN - 0444869107

SP - 601

EP - 602

BT - Unknown Host Publication Title

PB - North-Holland

ER -

MEASUREMENT OF THE SUPERCONDUCTING ENERGY GAP IN SINGLE CRYSTAL V//3Si.

Abstract

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