Ultrasonic studies of anisotropic flux pinning in La1.85Sr0.15CuO4 under high magnetic fields

T. Fukase; M. Kamata; T. Hanaguri; T. Sasaki; T. Suzuki; T. Goto; I. Tanaka; H. Kojima

doi:10.1016/0921-4526(95)00491-2

Ultrasonic studies of anisotropic flux pinning in La_1.85Sr_0.15CuO₄ under high magnetic fields

T. Fukase, M. Kamata, T. Hanaguri, T. Sasaki, T. Suzuki, T. Goto, I. Tanaka, H. Kojima

IMR - Materials Property Division

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

2 Citations (Scopus)

Abstract

The flux line lattice (FLL) elasticity and its anisotropic pinning have been investigated in a single crystalline La_1.85Sr_0.15CuO₄ by ultrasonic measurements under high magnetic fields. The depinning activation energies are deduced from measurements under various settings of the directions of wave vector k, polarization vector u and magnetic fields H as U_ac(0 K, 14 T) = 972 K for H⊥c, u∥c, U_ab(0 K, 14 T) = 201 K for H⊥c, u∥(c × H) and U_ca(0 K, 14 T) = 25 K for H∥c, u⊥c. The magnetic field dependence of U are also deduced as U_ac ∝ H^-0.3 and U_ca ∝ H^-1.5. The angular dependence of U_ac is discussed on the basis of the intrinsic pinning mechanism.

Original language	English
Pages (from-to)	274-276
Number of pages	3
Journal	Physica B: Condensed Matter
Volume	216
Issue number	3-4
DOIs	https://doi.org/10.1016/0921-4526(95)00491-2
Publication status	Published - 1996 Jan 1

Access to Document

10.1016/0921-4526(95)00491-2

Cite this

@article{c9ecac3bea7042c0a58179605a1374bf,

title = "Ultrasonic studies of anisotropic flux pinning in La1.85Sr0.15CuO4 under high magnetic fields",

abstract = "The flux line lattice (FLL) elasticity and its anisotropic pinning have been investigated in a single crystalline La1.85Sr0.15CuO4 by ultrasonic measurements under high magnetic fields. The depinning activation energies are deduced from measurements under various settings of the directions of wave vector k, polarization vector u and magnetic fields H as Uac(0 K, 14 T) = 972 K for H⊥c, u∥c, Uab(0 K, 14 T) = 201 K for H⊥c, u∥(c × H) and Uca(0 K, 14 T) = 25 K for H∥c, u⊥c. The magnetic field dependence of U are also deduced as Uac ∝ H-0.3 and Uca ∝ H-1.5. The angular dependence of Uac is discussed on the basis of the intrinsic pinning mechanism.",

author = "T. Fukase and M. Kamata and T. Hanaguri and T. Sasaki and T. Suzuki and T. Goto and I. Tanaka and H. Kojima",

note = "Funding Information: This work was carried out at High Field Laboratory for Superconducting Materials, IMR, Tohoku University and supported by Grant-in-Aid for Scientific Research on Priority Areas, {"}Mechanism of Superconductivity{"} and {"}Science of High Tc Superconductivity{"} from the Ministry of Education, Science and Culture of Japan.",

year = "1996",

month = jan,

day = "1",

doi = "10.1016/0921-4526(95)00491-2",

language = "English",

volume = "216",

pages = "274--276",

journal = "Physica B: Condensed Matter",

issn = "0921-4526",

publisher = "Elsevier",

number = "3-4",

}

TY - JOUR

T1 - Ultrasonic studies of anisotropic flux pinning in La1.85Sr0.15CuO4 under high magnetic fields

AU - Fukase, T.

AU - Kamata, M.

AU - Hanaguri, T.

AU - Sasaki, T.

AU - Suzuki, T.

AU - Goto, T.

AU - Tanaka, I.

AU - Kojima, H.

N1 - Funding Information: This work was carried out at High Field Laboratory for Superconducting Materials, IMR, Tohoku University and supported by Grant-in-Aid for Scientific Research on Priority Areas, "Mechanism of Superconductivity" and "Science of High Tc Superconductivity" from the Ministry of Education, Science and Culture of Japan.

PY - 1996/1/1

Y1 - 1996/1/1

N2 - The flux line lattice (FLL) elasticity and its anisotropic pinning have been investigated in a single crystalline La1.85Sr0.15CuO4 by ultrasonic measurements under high magnetic fields. The depinning activation energies are deduced from measurements under various settings of the directions of wave vector k, polarization vector u and magnetic fields H as Uac(0 K, 14 T) = 972 K for H⊥c, u∥c, Uab(0 K, 14 T) = 201 K for H⊥c, u∥(c × H) and Uca(0 K, 14 T) = 25 K for H∥c, u⊥c. The magnetic field dependence of U are also deduced as Uac ∝ H-0.3 and Uca ∝ H-1.5. The angular dependence of Uac is discussed on the basis of the intrinsic pinning mechanism.

AB - The flux line lattice (FLL) elasticity and its anisotropic pinning have been investigated in a single crystalline La1.85Sr0.15CuO4 by ultrasonic measurements under high magnetic fields. The depinning activation energies are deduced from measurements under various settings of the directions of wave vector k, polarization vector u and magnetic fields H as Uac(0 K, 14 T) = 972 K for H⊥c, u∥c, Uab(0 K, 14 T) = 201 K for H⊥c, u∥(c × H) and Uca(0 K, 14 T) = 25 K for H∥c, u⊥c. The magnetic field dependence of U are also deduced as Uac ∝ H-0.3 and Uca ∝ H-1.5. The angular dependence of Uac is discussed on the basis of the intrinsic pinning mechanism.

UR - http://www.scopus.com/inward/record.url?scp=0029733393&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0029733393&partnerID=8YFLogxK

U2 - 10.1016/0921-4526(95)00491-2

DO - 10.1016/0921-4526(95)00491-2

M3 - Article

AN - SCOPUS:0029733393

SN - 0921-4526

VL - 216

SP - 274

EP - 276

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

IS - 3-4

ER -

Ultrasonic studies of anisotropic flux pinning in La_1.85Sr_0.15CuO₄ under high magnetic fields

Abstract

Access to Document

Other files and links

Fingerprint

Cite this