Uniaxial stress study of spin and charge stripes in La1.875Ba0.125CuO4 by 139La NMR and 63Cu NQR

Ivan Jakovac; Adam Dioguardi; Mihael Grbic; Genda Gu; John Tranquada; Clifford Hicks; Miroslav Pozek; Hans-Joachim Graefe

doi:10.1103/PhysRevB.108.205113

Uniaxial stress study of spin and charge stripes in La_1.875Ba_0.125CuO₄ by ¹³⁹La NMR and ⁶³Cu NQR

Ivan Jakovac, Adam Dioguardi, Mihael Grbic^*, Genda Gu, John Tranquada, Clifford Hicks, Miroslav Pozek, Hans-Joachim Graefe

^*Corresponding author for this work

Physics and Astronomy

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Abstract

We study the response of spin and charge order in single crystals of La_1.875Ba_0.125CuO₄ to uniaxial stress through ¹³⁹La nuclear magnetic resonance and ⁶³Cu nuclear quadrupole resonance, respectively. In unstressed La_1.875Ba_0.125CuO₄, the low-temperature tetragonal structure sets in below T_LTT = 57K, while the charge order and the spin order transition temperatures are T_CO = 54K and T_SO= 37K, respectively. We find that uniaxial stress along the [110] lattice direction strongly suppresses T_CO and T_SO, but has little effect on T_LTT. In other words, under stress along [110] a large splitting (≈21K) opens between T_CO and T_LTT, showing that these transitions are not tightly linked. On the other hand, stress along [100] causes a slight suppression of T_LTT but has essentially no effect on T_CO and T_SO. Magnetic field H along [110] stabilizes the spin order: the suppression of T_SO under stress along [110] is slower under H ∥ [110] than H ∥ [001]. We develop a Landau free-energy model, and we interpret our findings as an interplay of symmetry-breaking terms driven by the orientation of spins.

Original language	English
Article number	205113
Number of pages	12
Journal	Physical Review B
Volume	108
Issue number	20
Early online date	8 Nov 2023
DOIs	https://doi.org/10.1103/PhysRevB.108.205113
Publication status	Published - 15 Nov 2023

Bibliographical note

Acknowledgments:
The authors acknowledge the help of Christian Blum and Dina Bieberstein in preparing the samples, Sebastian Gass for SQUID measurements, and Markus Hücker and Ivan Kupčić for valuable discussions. The work was supported by the Croatian Science Foundation (Grant No. IP-2018-01-2970), DFG (Grant No. DI2538/1-1), the Alexander von Humboldt Foundation (Grant No. 3.4-1022249-HRV-IP), and the project CeNIKS cofunded by the Croatian Government and the EU/ERDF—Competitiveness and Cohesion Operational Programme (Grant No. KK.01.1.1.02.0013). The work at BNL was supported by the U.S. Department of Energy, Office of Basic Energy Sciences, Contract No. DE-SC0012704. C.W.H. acknowledges support from DFG; TRR 288-422213477 (Project No. A10).

Keywords

cuprate
superconductivity
density wave

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10.1103/PhysRevB.108.205113

JakovacI2023UniaxialAccepted author manuscript, 6 MBLicence: None: All rights reserved

Cite this

@article{346d3a53b409448bb544a0b7b069edf0,

title = "Uniaxial stress study of spin and charge stripes in La1.875Ba0.125CuO4 by 139La NMR and 63Cu NQR",

abstract = "We study the response of spin and charge order in single crystals of La1.875Ba0.125CuO4 to uniaxial stress through 139La nuclear magnetic resonance and 63Cu nuclear quadrupole resonance, respectively. In unstressed La1.875Ba0.125CuO4, the low-temperature tetragonal structure sets in below TLTT = 57K, while the charge order and the spin order transition temperatures are TCO = 54K and TSO = 37K, respectively. We find that uniaxial stress along the [110] lattice direction strongly suppresses TCO and TSO, but has little effect on TLTT. In other words, under stress along [110] a large splitting (≈21K) opens between TCO and TLTT, showing that these transitions are not tightly linked. On the other hand, stress along [100] causes a slight suppression of TLTT but has essentially no effect on TCO and TSO. Magnetic field H along [110] stabilizes the spin order: the suppression of TSO under stress along [110] is slower under H ∥ [110] than H ∥ [001]. We develop a Landau free-energy model, and we interpret our findings as an interplay of symmetry-breaking terms driven by the orientation of spins.",

keywords = "cuprate, superconductivity, density wave",

author = "Ivan Jakovac and Adam Dioguardi and Mihael Grbic and Genda Gu and John Tranquada and Clifford Hicks and Miroslav Pozek and Hans-Joachim Graefe",

note = "Acknowledgments: The authors acknowledge the help of Christian Blum and Dina Bieberstein in preparing the samples, Sebastian Gass for SQUID measurements, and Markus H{\"u}cker and Ivan Kup{\v c}i{\'c} for valuable discussions. The work was supported by the Croatian Science Foundation (Grant No. IP-2018-01-2970), DFG (Grant No. DI2538/1-1), the Alexander von Humboldt Foundation (Grant No. 3.4-1022249-HRV-IP), and the project CeNIKS cofunded by the Croatian Government and the EU/ERDF—Competitiveness and Cohesion Operational Programme (Grant No. KK.01.1.1.02.0013). The work at BNL was supported by the U.S. Department of Energy, Office of Basic Energy Sciences, Contract No. DE-SC0012704. C.W.H. acknowledges support from DFG; TRR 288-422213477 (Project No. A10).",

year = "2023",

month = nov,

day = "15",

doi = "10.1103/PhysRevB.108.205113",

language = "English",

volume = "108",

journal = "Physical Review B",

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T1 - Uniaxial stress study of spin and charge stripes in La1.875Ba0.125CuO4 by 139La NMR and 63Cu NQR

AU - Jakovac, Ivan

AU - Dioguardi, Adam

AU - Grbic, Mihael

AU - Gu, Genda

AU - Tranquada, John

AU - Hicks, Clifford

AU - Pozek, Miroslav

AU - Graefe, Hans-Joachim

N1 - Acknowledgments: The authors acknowledge the help of Christian Blum and Dina Bieberstein in preparing the samples, Sebastian Gass for SQUID measurements, and Markus Hücker and Ivan Kupčić for valuable discussions. The work was supported by the Croatian Science Foundation (Grant No. IP-2018-01-2970), DFG (Grant No. DI2538/1-1), the Alexander von Humboldt Foundation (Grant No. 3.4-1022249-HRV-IP), and the project CeNIKS cofunded by the Croatian Government and the EU/ERDF—Competitiveness and Cohesion Operational Programme (Grant No. KK.01.1.1.02.0013). The work at BNL was supported by the U.S. Department of Energy, Office of Basic Energy Sciences, Contract No. DE-SC0012704. C.W.H. acknowledges support from DFG; TRR 288-422213477 (Project No. A10).

PY - 2023/11/15

Y1 - 2023/11/15

N2 - We study the response of spin and charge order in single crystals of La1.875Ba0.125CuO4 to uniaxial stress through 139La nuclear magnetic resonance and 63Cu nuclear quadrupole resonance, respectively. In unstressed La1.875Ba0.125CuO4, the low-temperature tetragonal structure sets in below TLTT = 57K, while the charge order and the spin order transition temperatures are TCO = 54K and TSO = 37K, respectively. We find that uniaxial stress along the [110] lattice direction strongly suppresses TCO and TSO, but has little effect on TLTT. In other words, under stress along [110] a large splitting (≈21K) opens between TCO and TLTT, showing that these transitions are not tightly linked. On the other hand, stress along [100] causes a slight suppression of TLTT but has essentially no effect on TCO and TSO. Magnetic field H along [110] stabilizes the spin order: the suppression of TSO under stress along [110] is slower under H ∥ [110] than H ∥ [001]. We develop a Landau free-energy model, and we interpret our findings as an interplay of symmetry-breaking terms driven by the orientation of spins.

AB - We study the response of spin and charge order in single crystals of La1.875Ba0.125CuO4 to uniaxial stress through 139La nuclear magnetic resonance and 63Cu nuclear quadrupole resonance, respectively. In unstressed La1.875Ba0.125CuO4, the low-temperature tetragonal structure sets in below TLTT = 57K, while the charge order and the spin order transition temperatures are TCO = 54K and TSO = 37K, respectively. We find that uniaxial stress along the [110] lattice direction strongly suppresses TCO and TSO, but has little effect on TLTT. In other words, under stress along [110] a large splitting (≈21K) opens between TCO and TLTT, showing that these transitions are not tightly linked. On the other hand, stress along [100] causes a slight suppression of TLTT but has essentially no effect on TCO and TSO. Magnetic field H along [110] stabilizes the spin order: the suppression of TSO under stress along [110] is slower under H ∥ [110] than H ∥ [001]. We develop a Landau free-energy model, and we interpret our findings as an interplay of symmetry-breaking terms driven by the orientation of spins.

KW - cuprate

KW - superconductivity

KW - density wave

U2 - 10.1103/PhysRevB.108.205113

DO - 10.1103/PhysRevB.108.205113

M3 - Article

SN - 2469-9950

VL - 108

JO - Physical Review B

JF - Physical Review B

IS - 20

M1 - 205113

ER -